TESTING - TM-10-3930-638-24-P0738

TM 10-3930-638-24&P

3-30. HYDRAULIC LIFT SYSTEM MAINTENANCE (cont)

c. Sideshift Cylinder Assembly (cont).

ITEM

ACTION

REMARKS

STEP

LOCATION

TESTING (cont)

a. Start pump and Rod should extend smoothly from cylinder

Test hydraulic

apply hydrau-

pump

lic oil under

pressure

(2000 Psi) to

sideshift cyl-

inder assembly

b. Continue operat-

ing pump until

rod is complete-

ly extended

from cylinder;

hold until

step 15 below

is completed

a. Rod end port

Check for hydrau- Slight weepage of oil is permissible; if leak-

Sideshift cylin-

lic oil leakage

age is too great, disassemble cylinder

der assembly

and check piston assembly (14) for

damage

Check for hydrau- If leakage is observed, disassemble cylinder

b. Rod end packing

lic oil leakage

and check gland assembly (19) for damage

Shut pump down

Test hydrau-

lic pump

a. Cylinder port (port

Disconnect hydrau- Push rod into cylinder

Sideshift cylin-

opposite rod end)

lic hose and drain

der assembly

oil from cylinder

Prevents intrusion of dirt

b. Both cylinder ports

Cap

INSTALLATION/REPLACEMENT

Mast assembly,

a. Sideshift cylinder as-

Position on

front

sembly (11)

carriage

Position

b. Cylinder mounting

strap (10)

c. Two cap screws (8)

Install

and lock washers (9)

d. Pin (7)

Install

e. Retaining ring (6),

Install

washer (5), and

nut (4)

3-230