Medium Recovery Vehicle M88A1.

The front of the vehicle is shown here. The legend is as follows: 1. Right light and horn cluster. 2. Smoke grenade discharger (2). 3. Spade. 4. 90-ton (81.6-metric ton) snatch block. 5. Main winch cable opening. 6. 25-ton (22.7-metric ton) snatch block. 7. Flasher light. 8. Lifting eyes (2). 9. Left light cluster. 10. Towing eye. 11. Towing lug (2). 12. Track (2). (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The left side of the vehicle is diagrammed in this image. 1. Cal. .50 machine gun. 2. Machine gun mount. 3. Commander's cupola. 4. Left side personnel door. 5. Boom. 6. Tarpaulin and 100-ft (30.5-m) rope. 7. Crow bar (2). 8. Bumper spring (4). 9. Left side stowage compartment door. 10. Tow bar. 11. Roadwheel (12). 12. Shock absorber (6). 13. 10-ton (9.1-metric ton) snatch block. (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The right side of the vehicle is detailed here. 1. Boom support and latch. 2. Right side stowage compartment door. 3. APU compartment door. 4. Right side personnel door. 5. Antenna. 6. Compensating idler wheel (2). 7. Track tension adjusting link (2). 8. Track support roller (6). 9. Pioneer tools. 10. Drive sprockets (2). (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The top of the vehicle is the subject of this drawing. 1. Auxiliary power slave receptacle. 2. Vise. 3. 90-ton (81.6-metric ton) snatch block. 4. Oxygen cylinder. 5. Left side air intake screen. 6. M17 periscope (7). 7. Rigger's hatch. 8. Driver's hatch. 9. AN/VVS-2(V)1A periscope, M24 periscope, or M24A1 periscope. 10 Hoist winch cable access door. 11. Mechanic's hatch. 12. Spotlight. 13. Right side air intake screen. 14. Tow cable (2). 15. Exhaust deflector. (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The rear of the vehicle is shown here. 1. Rear taillight. 2. Rigger's light. 3. Lifting eye. 4. B.O. [blackout] marker light. 5. Tow bar. 6. Lifting chain. 7. Towing pintle. 8. Towing lug. (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The driver's position and controls are show in this diagram. 1. Dome light. 2. Driver's interphone control box. 3. Horn button. 4. Steering wheel. 5. Driver's hatch control. 6. Switch panel. 7. Transmission shift lever. 8. Drain valve lever. 9. Hydraulics control panel. 10. Main winch shift lever. 11. Auxiliary power unit (APU) control box. 12. Vehicle exhaust smoke system. 13. Night viewer receiver light system. 14. Accelerator pedal. 15. Dimmer switch. 16. Brake pedal. 17. Spade locking release handle. 18. High beam indiactor. 19. Purge pump handle. 20. Manual fuel shutoff handle. 21. Engine hand throttle. 22. Gage panel. 23. Personnel heater control box. 24. M17 periscope. (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The hydraulics controls are drawn in this picture. 1. BOOM operating lever. Used to move boom up or FORWARD, HOLD, or RETRACT-STOW. Spring loaded to stay in HOLD. 2. SPADE operating lever. Used to RAISE, LOWER and HOLD spade. Spring loaded to stay in HOLD position. 3. SYSTEM SELECTOR control lever. Selects auxiliary (AUX) and MAIN hydraulic systems. REFUEL position for refuel-defuel operations. It locks in desired position. 4. MAIN WINCH operating lever. Selects PAYOUT, HOLD, AND INHAUL of main cable. Spring loaded to stay in HOLD position. 5. POWER control lever. To turn main hydraulic pump ON or OFF. 6. BOOM SAFETY control lever. Selects STOW or LIVE. Spring loaded to stay in LIVE position. 7. HOIST WINCH operation lever. Selects LOWER, HOLD, and RAISE for hoist cable. It is spring loaded to stay in HOLD position. 8. MAIN WINCH SHIFT lever. Selects LOW, NEUTRAL, or HIGH main winching speeds and locks in desired position. 9. HOIST WINCH SHIFT lever. Selects LOW, NEUTRAL, or HIGH hoisting speeds. It locks in desired position. Located right rear of driver on floor. (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The pattern of smoke emitted from the grenade lauchers is sketched here. (Picture from TM 9-2350-256-10.)

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Medium Recovery Vehicle M88A1.

The engine deck is diagrammed here. The front of the vehicle is to the left of the drawing. 1. Right engine deck door. 2. Left- and center-front air inlet grilles. 3. Deep water fording exhaust cover plates. 4. Left and right exhaust doors. 5. Center exhaust doors. 6. Exhaust deflector. 7. Left and right hydraulic cylinder access covers. 8. Air inlet door. 9. Left and right deck air inlet doors. (Picture from TM 9-2350-256-20-1.)

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Medium Recovery Vehicle M88A1.

The internal components are revealed in this cross-sectional sketch. 1. Hydraulic control panel. 2. Driver's and mechanic's seats. 3. Commander's seat. 4. Rigger's seat. 5. Personnel heater. 6. APU [auxiliary power unit]. 7. Engine. 8. Cross-drive transmission. 9. Fuel tank installation. 10. Mechanical transimssion and hydraulic pump assemply. 11. Hoist winch. 12. Fixed fire extinguisher system. 13. Main winch. (Picture from TM 9-2350-256-20-1.)

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Medium Recovery Vehicle M88A1.

The major external components of the XT-1410-4 transmission are sketched here. Its dry weight was ~6611lb (~2999kg), and its length was ~41.17" (~104.6cm), height 31.30" (79.50cm), and width between the output reduction gear assembly mountings was 74.00" (188.0cm). (Picture from TM 9-2520-215-34.)

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Medium Recovery Vehicle M88A1.

The transmission's major internal components are diagrammed in this image. Its maximum input torque, speed, and horsepower were 1725 ft-lb, 2400rpm, and 800, respectively. (Picture from TM 9-2520-215-34.)

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Heavy Recovery Vehicle M88A1 at Fort Knox, Kentucky.

The hatches, including the side personnel doors, commander's cupola, and driver's hatch, are open on this vehicle. The machine gun cradle is present at the commander's cupola, but the gun itself is absent.

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Heavy Recovery Vehicle M88A1 at Fort Knox, Kentucky.

The spade is raised, and the lifting chain is coiled over the normal stowage spot for the 90-ton (81.6-metric ton) snatch block. Only the left-hand headlight is burning.

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Heavy Recovery Vehicle M88A1 at Fort Knox, Kentucky.

Similarly, only the left-hand taillight is illuminated. The arrangement of the engine exhaust and the deflector can be seen.

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Heavy Recovery Vehicle M88A1 at Fort Knox, Kentucky.

The vehicle in the above pictures was deployed to help "Cindy," cruiser tank Grizzly which had been taking part in a demonstration but had become stranded when its low fuel load and the slope of the terrain conspired to stall its engine.

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Heavy Recovery Vehicle M88A1 at Fort Knox, Kentucky.

Cindy was able to be restarted once towed to more favorable ground.

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Heavy Recovery Vehicle M88A2 HERCULES.

1. Auxiliary winch. 2. Night vision viewer protective cover. 3. Emergency flasher light. 4. Turn signal lamps. 5. Level winder [to spool the main winch cable properly onto the main winch drum]. 6. Towing lugs. 7. Winch lug. 8. Spade. 9. Headlights. 10. Horn assembly. 11. M239 smoke grenade launchers. 12. Vision blocks. 13. Front lifting eyes. 14. M17 periscopes. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

15. M2 .50 caliber machine gun. 16. Antenna. 17. Decontamination kit. 18. Commander's cupola. 19. Boom. 20. Stayline arms [to move the boom rearward during boom operation]. 21. Travel lock. 22. Boom pulleys. 23. Stayline cables [to provide support and control for the boom when it is raised]. 24. Sprocket, roadwheel, and support roller [spares]. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

25. Smoke grenade storage box. 26. Auxiliary boom. 27. Left side storage compartment door. 28. Spare tow bar. 29. Oil can. 30. Left side personnel doors. 31. Armor skirt panels. 32. Remote fire extinguisher pull handles. 33. Spare track shoes. 34. Towing cables. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

46. Pioneer tools [axe, shovel, and mattock; some vehicles are equipped with an enclosed pioneer tool kit assembly]. 47. Right side storage compartment door [including refuel/defuel controls and impact wrench controls]. 48. Auxiliary power unit (APU) compartment door. 49. Right side personnel doors. 50. 140-ton (127-metric ton) snatch block. 51. Compensating idler wheels. 52. Adjusting link assembly. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

53. Shock absorbers. 54. Stop blocks [steel plates welded to the hull above roadwheels 2 through 5 that limit windup of the torsion bars]. 55. Roadwheel arm. 56. Roadwheel. 57. Track. 58. Support rollers. 59. Bumper stops [two per side]. 60. Tiedown eyes. 61. Drive sprocket. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

62. Hoist winch cable hatch. 63. Mechanic's hatch. 64. Personnel hatch [not present on all vehicles]. 65. Spotlight. 66. Front engine deck grilles. 67. Oxygen cylinder. 68. Engine deck side grille. 69. Sledge hammer. 70. Engine deck door [may be a split door on some vehicles]. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

71. Engine deck grille doors. 72. Rear lifting eyes. 73. Retaining straps [to secure the hook block in the boom tray]. 74. 35-ton [32-metric ton] hook block. 75. Engine deck storage box. 76. Auxiliary power (NATO slave) receptacle. 77. Boom tray. 78. Vise. 79. Engine deck storage tray. 80. Fuel filler cap protective cover. 81. Driver's hatch. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

35. Vision blocks. 36. Auxiliary boom receptacles [eight]. 37. Rear service lights. 38. Exhaust grille. 39. Exhaust deflector. 40. Towing pintle. 41. Combat tow chain. 42. Towing lugs. 43. Tow bar. 44. Rear fender skirt. 45.Taillight assembly. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

The hydraulic controls can be contrasted with the earlier machines above. 69. BOOM operating lever. 70. SYSTEM SELECTOR control valve handle. 71. SPADE bidirectional control valve handle. 72. AUX WINCH bidirectional control valve handle. 73. BOOM SAFETY directional control valve handle. 74. HOIST WINCH bidirectional control valve handle. 75. MAIN WINCH bidirectional control valve handle. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

82. Hydraulic control valve manifold. 83. Hoist winch cable chute. 84. Communications system. 85. Commander's seat. 86. Air cleaner. 87. Personnel heater. 88. Auxiliary hydraulic pump. 89. Auxiliary power unit (APU). (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

90. Motor/generator. 91. Stayline cylinders. 92. Refuel/defuel pump. 93. Output reduction drives. 94. Transmission. 95. Main engine. 96. Power takeoff (PTO). 97. Hydraulic reservoir. 98. Electromagnetic clutch [to engage/disengage main engine from hydraulic pumps]. 99. Hydraulic pumps. 100. Filter manifold. 101. Subfloor stowage baskets. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES.

102. Hoist winch. 103. Spade cylinders. 104. Main winch. 105. Spade lock. 106. Level winder cylinder. 107. Boom cylinders. (Picture from TM 9-2350-292-10.)

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Heavy Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

The ballistic skirts and other additional armor (visible if the side armor and armor around the front vision blocks are compared with the earlier vehicle above) increased the M88A2's weight to the point that it could better deal with the Abrams tanks. The .50cal MG is mounted on the commander's cupola, and the lifting boom is raised. Spare track blocks are stowed on the side of the cab, and a snatch block is stowed behind these.

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Heavy Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

Details of the rigging of the lifting boom can be gleaned from this image.

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Heavy Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

The auxiliary winch that helped with outlay of the main winch cable was mounted on the front of the vehicle. The driver and mechanic were provided with vision blocks around their hatches and one each in the front slope of the cab. The opening for the main winch cable can be seen at the bottom of the picture.

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Heavy Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

The rear of the vehicle is shown here. The tow bar and combat tow chain are stowed on the rear, and extra road wheels and drive sprockets are mounted to the sides of the vehicle. The twin exhaust doors flank the boom support.

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Heavy Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

Details of the drive sprocket and mounting of the ballistic skirts are shown here.

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Medium Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

A close-up of the vise mounted on the left rear of the vehicle is provided here. Note the vision block in the rear of the cab, just visible to the left of the image.

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Heavy Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

The commander's seat is lowered beneath his cupola here. The red toggle switch below the commander's cupola was for arming the vehicle's smoke grenade launchers.

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Heavy Recovery Vehicle M88A2 HERCULES at Fort Knox, Kentucky.

Looking forward to the driver's and mechanic's positions, we can see the transmission shift lever and the hydraulics control panel detailed above.

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Last updated 15 Dec 2018.
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© Copyright 2013-8 Chris Conners