CHECKOUT - TM-55-1740-200-140060

TM 55-1740-200-14

b. Inspect piston (43) and spool (47) for nicks, burrs

c. Inspect tube (39) for dents and breaks.

and excessive wear.

d. Inspect all threaded components for stripped or

c. Inspect roller (8) and cam (14) for damage and

damaged threads.

excessive wear on contact surfaces.

d. Inspect body (61) for restrictions in fluid passages.

4-64. CHECKOUT. Move rod (34) manually and check

for ease of movement. Test operation of booster cylinder

e. Inspect all pipe and threaded components for

in complete steering system, paragraph 4-35.

stripped or damaged threads.

4-56. CHECKOUT. Test operation of rear cam and valve

4-65. ADJUSTMENT. For adjustment refer to paragraph

assembly in complete steering system paragraph 4-35.

4-36.

4-57. ADJUSTMENT. Adjust the rear valve and cam

4-66. STEERING GEAR.

assembly as outlined in paragraph 4-36.

4-67. INSPECTION. See figure 4-15 and inspect the

4-58. HYDRAULIC PUMP.

steering gear as follows:

4-59. INSPECTION. See figure 4-13 and inspect the

c o n t a c t s on terminal (6) for pits or

a. Inspect

hydraulic pump as follows:

corrosion.

a. Inspect spring (4) for breaks or distortion.

b. Inspect cable (7) for frayed or worn insulation.

c. Inspect springs (4 and 27) for breaks or distortion.

b. Inspect bearings (13 and 17) for out-of-round

condition, scored surfaces, binding and wear.

d. Inspect bearings (24 and 29) for out-of-round

condition, scored surfaces, binding or wear.

c. Inspect vanes (8) for binding in rotor (9), bent

edges, burrs or wear.

e. Inspect lever shaft (25) for damaged or stripped

spline.

d. Inspect oil seal (16) for scored surfaces and wear.

e. Inspect housing (18), cover (1) and all moving parts

f. Inspect bushings (42) for out-of-round condition,

for scored mating surfaces and excessive wear.

nicks and scores.

4-60. CHECKOUT. Test for free rotation by turning

g. Inspect cam (39) for damaged surface, nicks and

shaft by hand. Install pump in system and connect a flow

scores.

meter on delivery port, Flow should be approximately 6.5

gpm at fast engine idle. Test pump pressure to 600 psi

h. Inspect housing (44) and cover (20) for cracks and

with gage installed in place of plug (4, figure 4-10).

damaged threads in tapped holes.

4-61. ADJUSTMENT. Adjust the hydraulic pump drive

4-68. CHECKOUT. Check for ease of movement.

belt for 1/2 inch deflection. (Refer to Chapter 3, Section

4-69. ADJUSTMENT. Add or remove shims (32, 33,

III.)

and 34) as required for adjustment of end play and to

compensate for wear.

4-62. BOOSTER CYLINDER.

4-70. ELECTRICAL SYSTEM.

4-63. INSPECTION. See figure 4-14 and inspect the

booster cylinder as follows:

4-71. INSPECTION. See figure 4-16 and inspect the

electrical system installation as follows:

a. Inspect ball socket springs (12 and 18) for breaks or

distortion.

a. Inspect all wiring and wiring harnesses for corroded

or loose terminals, frayed insulation, torn wrapping or

b. Inspect ball seats (11 and 17) and piston (38) for

exposed wires.

nicks, burrs and excessive wear.

4-8