Cleaning. - TM-10-3930-627-120081

TM 10-3930-627-12

b. Cleaning.

(7) Adjust nuts until deflection is equal with

the same tension applied to each chain at the same

(1) Soak and wash chains in SD. Use a

height. Keep nut and jamnut as close to end of anchor

stiff brush to remove hard or caked dirt and grease.

stud as possible and still obtain above adjustments. This

(2) Hang chains and let them drain until

will allow lowest possible position of forks. Tighten

dry.

c. Inspection. Inspect chains for pitted or

jamnuts.

broken rollers, elongation, and defective connecting

4-54. Oil Tank and Breathe.

links. Install serviceable chains as necessary.

a. Maintain level of OE to mark on dipstick at

d. Installation.

time mast is tilted back and hoist is fully lowered.

(1) Soak chains in OE-10.

b. Tank is vented through the fill cap, which

(2) Hang chains and let them drain. Wipe

contains a filter element. In normal service, remove the

outer surfaces of chains of excess oil before installing

fill cap and soak it in SD each 500 hours of operation to

them.

remove accumulated dirt. When the truck is used in

(3) Reverse procedure in a above.

dusty areas, clean as often as needed.

e. Adjustment.

c. Referring to figure 4-26, note the suction line

(1) With no load on forks move forks to

filter, shown removed from inside the tank. At least each

their extreme width.

1000 hours clean this filter.

(2) Lower forks completely.

4-55. Return Line (Pressure) Filter

(3) Move upright to vertical position.

Each 500 hours of operation replace this filter element.

(4) Adjust the chain anchor rods into chain

4-56. Lines and Fittings

anchors as far as threads will allow, by tightening chain

Inspect all hydraulic fittings and lines as given in MIL-

anchor rod nuts.

STD 166, Visual Inspection Guide for Rubber Hose.

(5) Fork-to-floor clearance will range from 0

Refer to figure 4-26 for guidance in removing lines and

to 3/4 inch, depending on tire wear and machine

fittings.

tolerances.

Warning: Lower forks fully and tilt mast

(6) Raise the inner rail assembly to its

forward before loosening any hydraulic hose fitting.

fullest height and check the clearance between the inner

Loss of pressure trapped in line may let mast tilt or

rail stops and the outer rail stop blocks. If the stop

carriage lower by gravity, with the risk of injury.

blocks are touching, readjust the nuts until a clearance of

at least 1/8 inch is obtained.

4-36