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M1 Abrams Tank

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Department of Military and Veterans Affairs State Safety Office Annville, PA 17003-5002 Commercial: 717-861-8813 DSN: 491-8813


Chocking Vehicle
Use chock blocks made of hard wood or other suitable material, e.g., “Do Not use decaying or rotten wood.” Chock blocks for heavy combat vehicles should be a minimum of 8”X 8” and extend the full width of each track. Place chock blocks between two sets of road wheels on each track.

ALWAYS set vehicle master switch to OFF before installing or removing radio or intercom equipment.

Never expose the periscope to direct sunlight

Never look directly into infrared lights. You may damage your eyes. Do not touch the lenses. You may burn your fingers.

Table of Contents
Preface…………………………………………………….1 General Safety Information……………………………….2 Operation Safety Information Driving……………………………………………..4 Recovery Operations……………………………….9 Towing……………………………………………..12 Boom Operation……………………………………13 Winch Operation…………………………………...15 Smoke Devices……………………………………..15 Maintenance Safety Information………………………….16 Carbon Monoxide Poisoning……………………………...19 Lightning Storms………………………………………….20 Ground Guiding…………………………………………...21 Recovery Arm Signals…………………………………….23 Risk Management…………………………………………29 Accident Reporting Information…………………………..30 Vehicle Specifications……………………………………..31

This guide was designed by the State Safety Office to outline safety tips relating to operating, recovery operations, and performing maintenance on the M88A1 Full Tracked Recovery Vehicle. It can also be helpful in performing risk assessments.

The guide should not be used to replace warning or other information mentioned in technical manuals (such as TM 9-2350-256-10) and other regulations but rather to augment and reinforce them.
Soldiers that do not perform to standard increase their probability of being injured or worse. They may also cause equipment damage or loss that may affect their unit’s ability to complete the mission. The standards are there. If you train to standards, the risk of accidents is greatly reduced. This guide is divided into three (3) major areas to help leaders disseminate its information to the appropriate audience. These areas are: general safety information which should be known by all soldiers, operational safety information for crew members and maintenance safety for maintenance personnel. A vehicle specification section was also added for soldiers not familiar with the M88. Check the fire extinguisher’s control seals. Make sure seals or locking wires are not broken. Check fire extinguishers for security of mounting hardware and missing hardware. Check for full charge.


General Safety Information
The M88/M88A1 medium recovery vehicle (MRV) is an armored, full tracked, low silhouette vehicle used for hoisting, winching, and towing operations for tanks and other vehicles. It is equipped to assist in repairing disabled vehicles under general field conditions. The vehicle carries a crew of four: vehicle commander, operator, mechanic, and rigger. As the number of M88A1 Recovery Vehicles continues to increase in the Pennsylvania Army National Guard, leaders must insure soldiers make a safe transition to this piece of equipment. Track vehicle accidents are very unforgiving. The end result can be anywhere from severe injury to death. Aggressive leadership is a vital part of safe and successful missions. Our leaders must ensure soldiers perform all tasks to standard and make safety an integral part of all decision making. Learn the standards and perform to those standards. Shortcuts are the quickest route to trouble when it comes to safe mission accomplishment. Risk management is the key to safe training. Leaders must assess the risk early, train safely, and then perform the mission accordingly. This means constantly analyzing risky situations (hasty risk management) and assessing the risk. The following are some general track vehicle safety tips that all soldiers should be aware of: 1. Hearing protection is always required by personnel inside and near the vehicle. 2. Never walk between armor vehicles when either/or both engines are running. 3. Smoking is not permitted in or on a track vehicle or within 50 feet of a refueling area. 4. Track vehicles will not be mounted or dismounted when in motion. 5. Never try to mount the M88A1 without first informing a crewmember. This will prevent the operator from moving the vehicle will climbing aboard. 6. Riding on the outside of the track is prohibited. 7. Do not lean on, against, or stand near the vehicle when the engine is running. 8. Maintain a three (3) point contact (two feet and one hand) when mounting, dismounting, or walking or top of the track. 9. When around tracks, your situational awareness should be at its highest. Don’t daydream. Always be aware of what is going on around you. 10. No smoking or open flames are allowed near disabled or overturned vehicles due to the possibility of fire from spilled fuel or other combustible/flammable fluids.

Hearing Protection is Required

Operational Information
Driving 1. Take it easy, until you are familiar with your vehicle. 2. When starting out, always drive slowly until all the vehicle systems have had an opportunity to warm up. 3. Crewmembers should not be exposed more than nametag defilade and should be prepared to drop inside the vehicle to avoid injury if the vehicle overturns. 4. Emergency rollover procedure should be briefed to all crewmembers. The crew will not jump from the vehicle, but stay inside the crew compartment and take a secure hold. 5. When operating the vehicle with the hatches open, always secure the hatch control handle with the locking tang. 6. If a track is thrown while operating the vehicle, do not apply the breaks. Allow the vehicle to coast to a stop. 7. Always sit in a seat that you are adjusting. Some seat adjustments are spring loaded and may move quickly without warning. 8. Enforce good housekeeping standards so that trash, snow, mud, and the like does not interfere with operations and communications or cause a slip, trip, or fall. 9. Do not sleep under, in front of, or behind the vehicle and do not allow others to sleep nearby without marking the area and posting a guard.

Do not expect your protective mask to protect you from carbon monoxide poisoning. It Will Not! 10. Never operate the vehicle without the acetylene plug (1) in place or the oxygen cylinder strap (2) correctly fastened. Always make sure the valve cover (3) on the oxygen cylinder is in place when not in use and ensure the fuel tank fill cover (4) is firmly seated.

11. The fuel control valve for the forward tank must always be closed before operating the vehicle. 12. Make sure the air cleaner control housing handles (1) are set on outside air source if the crew compartment is closed up.

13. Insure generator blower is working during engine operation. Failure to do so may cause fumes from the generator to enter the crew compartment. 14. Never leave the operator’s seat while the engine is running. 15. Vehicle must be brought to a complete stop before shifting from low/high range into reverse. 16. Approach all obstacles squarely. Warn crewmembers to brace themselves when approaching obstacles. 17. Never use the hand throttle in place of the accelerator for speed control. The hand throttle should never be used as a “Cruise Control”. 18. Steering while in reverse is opposite of normal vehicle operation. Turning the wheel to the right will cause the M88 to steer left. Turning the wheel to the left will cause the vehicle to steer right. 19. When operating the vehicle in reverse, any steering corrections from straight back will only be made by neutral pivot steer after bringing the vehicle to a complete stop. All reverse gear operations are limited to low speeds and require two ground guides. 20. Do not run the auxiliary power unit (APU) for longer than 1 hour with the generator or hydraulics engaged. After 1 hour, turn off auxiliary generator or hydraulic system and run the engine to allow the APU to cool before running again. 21. Insure that the access door to the APU is properly secured with a strap during maintenance checks and service. 22. During fuel operations, all personnel must dismount and the portable fire extinguisher must be readily accessible. 23. When refueling, remove the fuel filter cap for venting and have an observer watch the fuel tank filler pipe to prevent overfilling and spilling of fuel. 24. Do not operate the heater with vehicle breather closed.

25. The CO2 fire extinguisher can cause suffocation if used in a confined area. Do not touch the cone of the CO2 extinguisher during operation, severe burns can result. 26. The use of ETHER as a starting aid is prohibited. The use of ETHER produces extremely high cylinder firing pressures, which may cause serious engine damage. 27. Make sure all fluid spills are properly contained and materials are collected using correct hazardous material procedures. 28. Fires can break out at any time. Make sure all fire extinguishers are serviceable and ready for use before operating the vehicle and all crew members should be aware of their locations. 29. Fire can be greatly reduced if the wiring harness is checked daily for breaks, cracks, and proper insulation. Check fuel, oil, and hydraulic lines, tighten loose lines, and wipe up all leaks. Check engine mounts (engine grounding points) to ensure they are free of grease and dirt. 30. Do not use any linkage, especially in the hull of the engine compartment, as a step or place any weighted object on the linkage. Damaged or bent shifting linkages can cause the vehicle to remain in forward gear after the shifting lever has been placed in the reverse position.

Recovery Operations
(Reference FM 20-22) 1. Personnel handling wire ropes should wear heavy leather-palmed gloves to prevent hand injuries or cuts from broken wires. Never allow a moving cable to slide through the hands even when gloves are worn since broken wires can cut through gloves. 2. Always position a hook with the open part (throat) upward. If the hook should straighten out from overhead, the rigging could be forced downward. If a hook were positioned with the open part (throat) down, the rigging could travel upward, unrestrained and cause serious injury to personnel or damage to vehicles.

3. Safety keys should be in place on all tow hooks, shackles, and any other equipment requiring them. Some shackles (number 1 below) use a threaded-type pin. If the pin is not completely threaded into the shackle part, the shackle or pin can be bent or broken when force is applied.

4. When rigging is erected between vehicles, turn the engines off and apply the breaks. This prevents possible injury to the rigging personnel or damage to the vehicle. 5. During tank recovery operations, position the main gun tube so that it will not be damaged in the event of a collision. 6. DO NOT apply loads suddenly. This puts excessive strain on the rope and it may fail. Failure occurs when a weight is allowed to fall for a distance and is suddenly stopped. A similar strong force happens when power is engaged suddenly. 7. Make every effort to stand clear of any wire rope under tension. A winch line under load stretches like a rubber band and stores a lot of energy. Treat a wire rope under stress with the same respect you would a loaded gun. 8. Avoid being in any angle of pull by a snatch block. If a dead line of a snatch block breaks, a 200 pound snatch block can travel as far as 300 yards in the air.

9. When recovering a mired vehicle, make sure the exhaust and clear air intake are not covered or blocked.

Always stay clear of a wire rope under tension Towing Operation
1. Do not use the tow bar for cross country or rough, uneven terrain towing. Always use the tow cables for crosscountry towing. 2. Tow at safe speeds, especially on hills. Excessive speed while towing on inclines can create enough momentum in the towed vehicles to cause the M88 to be difficult to control. Vehicles can overturn as a result. Never tow on hilly terrain greater than 2 ½ miles per hour. 3. During normal M1MBT towing operations, use same procedures used for cross-country towing. Use of third vehicle as a holdback vehicle is required even when using tow bar for extended hauling. This helps prevent heavier M1MBT from pushing M88A1 to side or jackknifing when stopped. 4. If a vehicle must be towed over ¼ mile, the final drive of the towed vehicle must be disconnected. Serious damage to the drive train may result.

When the final drive is disconnected, the vehicle can move very easily if only on a slight incline. Therefore, the vehicle should be connected before disconnecting the final drive. Likewise, when the disabled vehicle is disconnected from the towing vehicle, the final drive must be reconnected and the vehicle must be properly chocked.
5. Always attach rigging to tow hooks or lifting lugs.

Never stand on top of the vehicle while the boom is being raised or lowered.

Boom Operation
1. Do not stand on top of the vehicle or engine deck when operating the boom. 2. Do not keep the boom in a full raised position for an extended period of time. Failure of the hydraulic system would cause the boom to free fall. 3. Never lift the hoist boom by external means. This creates a void in the hydraulic fluid on the downward side of the boom hoist cylinders, allowing the boom to fall freely. 4. Do not use the 25-ton snatch block in the cap screw is not installed. Failure to secure clevis to hinge with cap screw could result in accidental release of the snatch lock during lifting operations.

If there is no hole in the hinge for the cap screw, immediately notify the organizational maintenance. Do not use the snatch block without the cap screw. 5. Make sure that the stayline cables do not snag when you raise the boom. 6. Never lift more than 50,000 pounds (25 ton).

Maximum lift or live boom operation not to exceed 50,000 pounds.

Do not use snatch block without cap screw Winch Operation
1. Never use the winch with less than 3 wraps on the drum. Keep engine speed between 1500 and 1800 rpm. 2. Ensure that the fleet angle of a winch does not exceed 2 degrees from centerline. Damage to the winch and wire rope may result if the winch is not equipped with a level winding device. 3. Do not reel in cable under load in high gear. Reel in cable under a load heavy enough to keep cable drawn tightly and off the ground.

Smoke Generating
1. Never activate smoke generating system in a building or closed area, or with personnel at the rear of the vehicle. 2. Engine should be run for a minimum of 5 minutes after smoke generating system has been shut down to clear exhaust.

1. Rings, bracelets, wristwatches, and in some cases ID tags should be removed before working around vehicles. Jewelry can catch on equipment or may short across an electrical circuit and cause severe burns or electrical shock. Rings in particular are extremely dangerous as they can become wedged or snagged on equipment causing painful and permanent damage to fingers, hands, wrist, and shoulders. Loss of fingers could result.

2. Dry-cleaning solvent is hazardous to your health. Wear proper personal protective equipment (PPE) to include protective clothing and eye protection. Use only in a well ventilated area. Protective splash goggles, gloves and protective suits are available by contacting the State Safety Office. 3. Tracks will be chocked during maintenance operations. 4. Always wear splash goggles and gloves when working on any hydraulics system. 5. Do not check oil until the vehicle has had time to cool down. Failure to do so may cause severe burns to personnel. 6. Never work on equipment unless at least one other person familiar with operation and hazards of the equipment is nearby. 7. When disconnecting the batteries, always disconnect the ground cable first and connect it last. Make sure polarity (+ and -) are not reversed. 8. Vehicle must be brought to a complete stop before shifting from low/high range in reverse. 9. Do not drop or rap filter element to clean. Seals may be damaged or housing may be dented. 10. Transmission and engine may be hot after operation. Use caution when reaching into engine/transmission compartments. 11. Final drive hubs, track support roller hubs, roadwheel hubs, shock absorbers and idler hubs may be hot after operation use caution. 12. Do not look directly into infrared lights. You may damage your eyes. Do not touch lens. You may burn your fingers. 13. Lead-acid battery gases can explode. Do not smoke, have open flames or make sparks, especially if caps are off. 14. Remove all jewelry such as rings, dog tags, bracelets, watches, etc. If jewelry contacts battery terminal, a direct short may result. 15. IR power pack is high voltage. Injury to personnel or damage to M24 periscope could occur if Master Battery and IR Power switches are in the On position when vehicle power cable is being connected or disconnected from periscope. 16. Wait at least two minutes after IR Power switch is turned off before disconnecting the power cable. High voltage is present at power cable for several minutes after IR Power switch is turned off. 17. Ensure that the access door to the APU is properly secured with a strap during maintenance checks and services. 18. When breaking track, always stand clear to prevent injury. 19. Never operate the vehicle without a valve cover (screw on cap) on the oxygen cylinder or without acetylene plug in place. 20. Always set the vehicle Master switch to Off before installing or removing the radio or intercom equipment. 21. Be sure the arming switch of the smoke grenade launching system if Off before loading grenades into the discharger. 22. Never place your body in front of the dischargers when loading grenades or when dischargers are loaded.

23. Be careful never to step on any linkage located in the engine hull. Damaged or bent shifting linkages can cause the vehicle to remain in forward gear after the shifting lever has been placed in the reverse position. Perform a transmission linkage alignment check anytime the vehicles power plant is removed or reinstalled. 24. To stop the engine during a “runaway” engine situation, both air intake handles must be turned to “inside air”. The control handle is located above each air cleaner. Then place a flat piece of material on top of both inside air intakes to starve the engine of air. The inside air intakes are also located above each air cleaner. Extreme care must be taken during a “runaway” engine. Turning off the fuel may still allow fuel to be drawn into the engine and will not stop the engine. If the engine can not be shut down in a short period of time, it could start an engine fire. The longer an engine is in a “runaway” situation, the higher the risk that the engine will explode and cause injury to personnel. All personnel should be briefed on procedures to follow in the event or a “runaway” engine.

All personnel should be briefed on procedures to follow in the event of a “runaway” engine.

Carbon Monoxide Poisoning
Carbon monoxide is a colorless, odorless, deadly poisonous gas, which, when breathed, deprives the body of oxygen and may cause suffocation. Exposure to air containing carbon monoxide produces symptoms of headache, dizziness, loss of muscle control, apparent drowsiness, and coma. Permanent brain damage or death can result from severe exposure. Carbon monoxide occurs in the exhaust fumes of fuel-burning heaters and internal-combustion engines and becomes dangerously concentrated under conditions of inadequate ventilation. The following precautions must be observed to ensure the safety of personnel whenever the personnel heater is operated for either maintenance purposes or tactical use:

a. Do not operate the heater or engine of the vehicle in an enclosed area unless it is adequately ventilated. b. Do not idle engine for long periods without maintaining adequate ventilation in the personnel compartment. c. Do not drive the vehicle with inspection plates, engine cover plates, or access doors removed unless required for maintenance purposes. d. Be alert at all times during vehicle operation for exhaust odors and exposure symptoms. If either is present, immediately ventilate the personnel compartment. e. Do not expect your protective mask to provide protection from carbon monoxide. It will not. f. If anyone shows signs of exhaust gas poisoning, get personnel out of the vehicle. Be prepared to give first aid, artificial respiration and CPR, to any personnel suffering from carbon monoxide poisoning. Do not try to operate the vehicle until it has been ventilated and the source of the carbon monoxide eliminated as a hazard.

Lightning Storms
1. When advanced warning is given of an electrical storm approaching within the area of operations, the following practices should be adhered to:    Ensure all power switches in the track are in the Off position. This includes radios. Ensure all personnel vacate the vehicle and move to low terrain. Do not stand underneath a natural lightning rod such as tall, isolated trees or telephone poles. Avoid using tactical telephones.

2. If a soldier feels an electrical charge (skin tingles, or hair stands on end), lightning is about to strike very close by. The best action to take is drop to the knees and bend forward putting your hands on the knees and create a low silhouette. Do not lie flat on the ground. The idea is to keep all body limbs close to and touching the body. This helps reduce the risk of current traveling from the ground to the body and through the chest area, thereby affecting the heart.


Ground Guiding
Two ground guides should always be used with the M88A1 Recovery Vehicle. 1. Use ground guides when operating in close quarters, motor pools, field assembly areas, proximity to friendly dismounted troops, during recovery operations and during restricted visibility (night). 2. The ground guide and crew must know and use the standard hand signals. It is difficult to yell over the vehicle’s engine noise. 3. The ground guide must be visible, but at a sufficient distance to take emergency evasive action if needed. Never put yourself between two vehicles during recovery operations. 4. The ground guides should be situated on each side of the track and always visible to the driver. 5. Ground guides must never place themselves between moving vehicles or between a moving vehicle and any fixed object. 6. If the driver looses sight of the ground guide, he must immediately stop until visual contact is re-established and directions are received. 7. When backing, a ground guide is required at the front and rear of the tracked vehicle. The two guides must be able to see each other. The rear guide signals the ground guide who in turn signals the driver. 8. Remain out of the driver’s path. The ground guides should keep 10 meters from the moving track. The ground guides will not run while guiding a vehicle. 9. When a track is being ground guided in reverse, two ground guides are required. The ground guide at the rear of the track should never walk backwards while guiding the vehicle. Instead, they should locate themselves 10 to 20 meters behind the track and face the ground guide located in front of it. Once the vehicle backs close to the rear ground guide, the track should be stopped. Then the rear ground guide turns around and starts walking further to the rear of the track approximately another 10 to 20 meters. The rear ground guide then turns around again and faces the vehicle, and the front ground guide, and continues guiding in this manner until the vehicle is in position. Walking backward could cause the ground guide to trip over something and be in line of the moving track.

The ground guide should be 10-20 meters to the rear.



Risk Management
Risk management gives leaders a tool to make smart risk decisions in tactical training. It minimizes personnel and equipment losses. Risk management will allow mission accomplishment with the least risk possible. Four basic rules that apply to risk management.     Integrate into planning No unnecessary risk should ever be accepted Risk decisions must be made at the appropriate level. Who’s going to answer if something goes wrong?

The benefits of taking a risk must outweigh the possible cost of the risk. What training benefits will be gained from taking the risk?

Rules for managing risks      Identify the hazard. What will get soldiers hurt or killed or equipment damaged? Assess the risks for the probability of an accident occurring and the severity of the injury or equipment damage. This determines what command level accepts the risk decision. Develop risk controls. Decide what changes will be made to make the mission less risky but not affect the outcome. Implement the risk controls by briefing all affected soldiers. Supervise the operation and make on-the-spot corrections.

When and how to report accidents to the State Safety Office
AT, IDT, AGR, ADT, ADSW 1. Is there $2,000 or more military or civilian property damage? OR 2. Is there one or more lost work days/incapacitation days? OR 3. Is there suspected or known equipment failure? YES – Complete a DA Form 285-AB-R (Abbreviated Army Accident Investigation Report), submit to TAGPA, ATTN: SSO, NLT 20 days following the accident. NO – Complete SSO Form 27 (Accident Investigation Short Form), submit to TAGPA, ATTN: SSO, NLT 20 following the accident. Technician 1. Is there $2,000 or more military or civilian property damage? OR 2. Is there suspected equipment failure? YES – Complete a DA Form 285-AB-R (Abbreviated Army Accident Investigation Report), submit to TAGPA, ATTN: SSO, NLT 20 days following the accident. NO – Complete SSO Form 19 (Technician Accident Investigation and Countermeasure Short Form), submit to TAGPA, ATTN: SSO, NLT 20 days following the accident. NOTE: If the 20 day suspense date can not be made, Please call the State Safety Office to inform us of the accident. State Safety Office Phone Numbers Are: DSN: 491-8813 Commercial: 717-861-8813

Vehicle Specifications
The M88/M88A1 Medium Recovery Vehicle (MRV) is an armored, full tracked, low silhouette vehicle. Used for hoisting, winching, and towing operations for tanks and other vehicles. It is equipped to assist in repairing disabled vehicles under general field conditions. The vehicle carries a crew of four: vehicle commander, operator, mechanic, and rigger. Major vehicle systems and assemblies 1. The M88A1 is powered by a 12 cylinder, 4-cycle, air cooled diesel engine model AVDS-1790-2DR. The vehicles transmission is a combined transmission, differential, steering and braking unit model XT-1410-4 with 3 forward gears and 1 reverse gear. 2. The suspension system for each side consists of 6 road wheels with support arms, 3 pair of track support rollers, 3 shock absorbers, 1 track adjusting link, 2 bumper assemblies, track drive sprockets, hubs, compensating idler wheel and track.

3. The hull and cab assembly armor protects the crew and equipment against small arms fire, medium artillery, shell fragments and 20 pound anti-tank mines. The vehicle is divided into three sections: crew compartment, hydraulics compartment, and engine compartment. 4. The vehicle is equipped with a main and an auxiliary hydraulic system used for recovery and maintenance operations. These systems power a spade, boom, main winch, hoist winch, refuel pump, and hydraulic impact wrench. 5. The vehicle is equipped with a main and auxiliary generating system. The primary purpose of the auxiliary system is to charge the main batteries when they are too low to start the main engine. Major Components 1. Main winch. Used to pull disabled vehicles during recovery operations. 2. Hoist winch. Used to lift disabled vehicles and heavy loads for recovery and maintenance operations. 3. Caliber .50 Machinegun. Mounted on the cupola to aid crew in case of enemy attack. 4. Commanders cupola. Mounts .50 caliber machinegun and allows for 360° travel of the gun. Is also provides full vision for the commander using six prism blocks mounted in the cupola. 5. Communications Components. Provides equipment for internal and external ground-to-ground communications. 6. Gas-Particle filter unit. Provides filtered breathing air for CB masks used by operator and crew. 7. Personnel heater. Provides heated air for crew compartment during cold weather operations. 8. Auxiliary power unit. Provides electrical power to recharge batteries. Also provides hydraulic system. 9. Flow regulator control. Controls the operation of the fuel transfer pump and the hydraulic impact wrench. 10. M239 smoke grenade kit. Provides a self screening smoke capability for armored vehicles for concealing maneuvers or vehicle troops. 11. Exhaust smoke-generating system. Provides a self-screening smoke capability from diesel fuel/JP8 in the vehicle fuel tanks and is used for concealing maneuvers or vehicle troops.

Specifications Gross weight fully loaded Length Width Height Ground Clearance Fuel Capacity Maximum Vehicle Speed Cruising range Boom capacity Boom lift height 8 ft. reach 4 ft. reach Hoisting capacity Spade up Spade down Hoist winch line pull and speed Bare drum Full drum Bare drum Full drum 50,000 lbs. @ 9 fpm 30,000 lbs. @ 13 fpm Main winch line pull and speed 90,000 lbs. @ 20 fpm 51400 lbs. @ 42 fpm 6 tons 25 tons 22 ½ ft. 25 1/8 ft. 112,000 lbs. 27 ft. 1-1/2 in. 11 ft. 3 in. 10 ft. 3 in. 17 in. 400 gallons 26 mph 300 miles 25 tons

The access door to the APU can swing shut and injure personnel performing maintenance checks and services on the unit, especially if the spare road wheel is mounted in place on the hull, unless the door is properly secured by the stowage strap. The strap is routed through the lower access door ring handle, the stowed road wheel hub then tied to secure door in an open position.

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Lead-acid battery gasses can explode. Don’t smoke, have open flames, or make sparks around batteries, especially if the caps are off.

Remove all jewelry such as rings, dog tags, bracelets, etc. prior to working around batteries. If jewelry contacts battery terminal, a direct short will occur resulting in damage to equipment, and injury to personnel.

Do not touch the road wheel hubs, final drive hubs, or track support roller hubs after operating the vehicle. They may be extremely hot.

To avoid damage to the boom and hydraulic system, always keep the boom in the stowed (travel lock) position when it is not in use.

Always make sure both fire extinguishers are ready to use before operating the vehicle. A fire can break out any time. Personnel could be killed or injured.

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