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TM10-3930-660-34
16-16. BOOM EXTEND CYLINDER - REPLACE/REPAIR
This task covers:
a.
Removal
b.
Disassembly
c.
Cleaning
d.
Inspection
e.
Assembly
f.
Installation
Initial Setup
Tools
Materials/Parts
Tool Kit, Automotive Mechanics
Anti-seize Compound (App. B, Item 3)
Container
Shop Equipment, Automotive
Dry Cleaning Solvent P-D-680 (App. B,
Maintenance, Common #2
Item 47)
Less Power
Hydraulic Oil (App. B, Item 35)
Lint-Free Rags (App. B, Item 38)
Wrench Set, Spanner, Consisting of
Locknuts (16)
the following:
Lockwashers (2)
Spanner Wrench, Frame Tilt Cylinder;
Loctite #242 (App. B, Item 41)
Spanner Wrench, Carriage Tilt and
Loctite #271 (App. B, Item 43)
Attachment Hoist;
Nut (48)
Spanner Wrench, Fork Sideshift
O-rings (32, 33, 34, 38, 39, 40, 45,
Cylinder - Outer Gland;
50, 52)
Spanner Wrench, Fork Sideshift
Seal (47)
Cylinder - Outer Piston;
Tags (App. B, Item 52)
Spanner Wrench, Boom Lift Cylinder
Wood Blocks
and Boom Extend Cylinder
Personnel Required
Lifting Device (Capacity 500 lb.)
2 Personnel
Equipment Condition
Vehicle parked on level ground.
Boom retracted.
REMOVAL
WARNING
Hydraulic oil in the system can be under pressure over 5,
000 psi with the engine and pump OFF. ALWAYS
relieve pressure in hydraulic lines before attempting to
remove any component in the hydraulic system. With
the engine OFF and hydraulic attachments on the
ground, move control levers through all operating
positions several times to relieve line pressure. Relieve
pressure in hydraulic oil tank by loosening filler cap very
slowly. Failure to follow these precautions could result in
serious personal injury.
CAUTION
Wipe the area clean around all hydraulic connections to
be opened during removal and disassembly. Cap oil
lines and plug holes after removing lines. Contamination
of the hydraulic system could result in premature failure.
NOTE
If more than one hydraulic line is removed, identify lines
to assure proper installation. Use suitable container to
catch any hydraulic oil that may drain from system.
16-98
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