72. SERVICE BRAKE LINKAGE SHAFT. Each time main
engine is removed, lubricate with GAA through fitting.
(a) Perform a complete lubrication service.
73. STEERING LINKAGE BELL CRANK. Each time main
(b) Check auxiliary power unit, main engine and transmission
engine IS removed, lubricate with GAA through five fittings.
for presence of water or sludge in oil. If found, drain and flush
74. SHIFTING LINKAGE BELL CRANK. Each time main engine
transmission with PE-1 Lubricating Oil, Internal Combustion
is removed, lubricate with GAA through five fittings.
engine, and drain and flush engines with OE-30 Lubricating Oil,
Internal Combustion engine. If PE-1 is not available, flush trans-
75. REAR BOOM LEVER CYLINDER PINS. Open engine
mission with OE-10, Lubricating Oil, Internal Combustion
grilles and remove stoplight plate. Lubricate with GAA through
engine. Before refilling with clean oil, remove, clean and install
front fittings (accessible through grille) and rear fittings (through
transmission oil filters (see note 56). Replace engine oil filter
elements (see note 53).
76. AUXILIARY POWER UNIT (APU) CRANKCASE DRAIN.
(c) Check lubricant in hydraulic reservoir and winch gear cases
79. OIL CAN POINTS. Monthly lubricate all pivot points, head-
APU engine IS hot after operation.
lamp removal nut, 0.50-caliber machine gun mount traverse
Use caution when reaching into APU
lock, side door Iockpin, seat moving parts, engine throttle con-
trol linkage latches, grille door hinges and retaining bolts, pivot
pins, boom Iockpin, on-vehicle stowage clamps, vise turn screw,
exhaust deflector pivot pin and hinges, snatch blocks, sheaves,
and boom limit valve actuating arm shaft. Use Lubricating Oil,
Drain oil only when hot after
General Purpose, PL-S.
80. DO NOT LUBRICATE personnel heater motor, ventilating
Coordinate any seasonal change of
blower motor, auxiliary power unit air cleaner (see view CS).
011 weight with this servce.
81. LUBRICATE AT ASSEMBLY BY FIELD OR DEPOT MAIN-
Remove the SIX screws and SIX lockwashers which secure hull
TENANCE UNITS starter, commander's cupola, fuel injector
draln cover to bottom of hull Remove dram plate. Open right
drive coupling, and driver's, rigger's and mechanic's hatch
front engine grille door Open APU crankcase drain valve When
mechanisms (see view CT).
oil has drained from crankcase, close drain valve Close right
82. Copy of this lubrication order will remain with the equipment
front engine grille door, Refill engine crankcase with proper
at all times; instructions contained herein are mandatory and
grade of oil (see note 77 and table on card 14). Start APU
supersede all conflicting lubrication instructions dated prior to
engine (TM 9-2350 -256-10) and check for 011 leaks past drain
valve (indicated by oil dripping from drain hose) If oil leak IS
present. double check that drain valve handle is closed
By Order of the Secretory of the Army:
securely Notify organizational maintenance if leakage persists.
Install engine drain cover at bottom of hull and Install six lock-
JOHN A. WICKHAM, JR.
washers and screws
General, United States
Army Chief of Staff
77. AUXILIARY POWER UNIT (APU) CRANKCASE FILL AND
APU engine IS hot after operation
Use caution when reaching into the
Open side APU access door. Remove bayonet gage and wipe it
with a clean rag, Insert bayonet gage and remove It again.
Observe the oil level indicated on the bayonet gage. If 011 level
Distrlbutlon shall be in accordance with DA Form 12-37 require-
reads below full (F) mark, remove oil filler cap and add oil until
ments for Recovery Vehicle, M88A1, Medium.
Ievel rises to full (F) mark (see key on card 14 for required oil
type) Install bayonet gage and filler cap, and close side APU
78. LUBRICATION AFTER FORDING OPERATIONS As soon
as possible after any fording operation in water of 12 inches or
more, Iubricate all chassis points to cleanse bearings of water
or grit. Also Iubricate any other points requiring maintenance
after fording If vehicle has been in deep water for a consider-
able length of time, or was submerged beyond Its fording capa-
blllties, the following precautions must be taken as soon as
practicable to avoid damage to engine and other vehicle com-
U.S. GOVERNMENT PRINTING
CARD 37 of 38/(CARD 38 BLANK)