RELIEF VALVE - TM-55-1740-200-140165

TM 55-1740-200-14

a. Assemble spring (11), valve (10), and retaining ring

d. Assemble two seats (12 and 14), springs (13 and

(9) in valve body (12).

22), four ball seats (12 and 21) and two plugs (11 and

20) in housings (15 and 24).

b. Install three bushings (8), two elbows (7), and one

tee (6).

e. Attach two clamps (7 and 16) to housings (15

and

24) with two screws (8 and 17), washers (9 and 18)

and

4-493. INSTALLATION. Install the flow control valve

nuts (10 and 19). Install two lubrication fittings

(6).

as follows:

Screw two socket assemblies on valve assembly

and

tighten screws (8 and 17).

a. See figure 4-11 and install assembled valve and

bracket (1) on tractor with four screws (2 and 3), washers

f. Install two nipples (3 and 4), couplings (2), and

(4), and nuts (5).

three elbows (1) in valve body (48).

b. See figure 4-8 and install union (31) and four hose

4-487. INSTALLATION. Install the front drag link

assemblies (4, 28, 29 and 30).

valve as follows:

4-494. REAR STEER CAM AND VALVE ASSEMBLY.

a. See figure 4-9 and install drag link valve on ball

studs. Adjust plugs (11 and 20) in socket assemblies.

4-495. REASSEMBLY. See figure 4-12 and reassemble

Install cotter pin (5) in each socket assembly.

the rear cam and valve assembly as follows:

b. See figure 4-8 and install union (36) and four hose

a. Assemble pin (58) and packing (56) on plug (57).

assemblies (26, 29, 34, and 35). Install two clamps (33).

Install ball (60), spring (59), and plug (57) in valve body

4-488 . RELIEF VALVE.

(61). Slide sleeve (55) into valve body (61).

4-489. REASSEMBLY. See figure 4-10 and reassemble

b. Assemble three bushings (54, 52 and 50), two

spacers (53 and 51), ring (49), and spring (48) in sleeve

the relief valve as follows:

(55). Assemble two pins (46), one plug (45), and two

packings (44) to spool (47). Slide spool into sleeve (55).

a. Install two packings (17 and 19) on valve (20).

Install two packings (42) on two glands (43) and insert

Install retainers (18) next to packing (19). Insert valve

one gland in each end of sleeve (55).

into valve body (21). Assemble packing (17) and restric-

tor (16) in valve body (21).

c. Slide two rings (41) on each end of sleeve (55).

Attach clamp (36) on cap (40) with bolt (37), washer

b. Assemble two seats (14) and balls (13) on spring

(38), and nut (39). Install two covers (40 and 35), one

(15) and insert into body (21). Install packing (12) on

boot (34), spring (33) and adapter (32). Lock caps (40

piston (11) and screw piston (11) completely in to cap

and 35) with tabs of ring (41).

(9).

d. Attach clamp (28) on adapter (32) with screw (29),

c. Install packing (10) on cap (9). Install cap (9) with

washer (30), and nut (31). Assemble two springs (26) and

piston (11) into body (21). Install nut (8) onto threaded

two nuts (25) on spool (27). Install rod in cap (40).

part of piston (11).

Install three unions (24) and four elbows (22 and 23) in

valve body (61).

d. Install nipple (7), cross (6), plug (4), and two

elbows (5). Install nipple (3), elbow (2), and bushing (1).

e. Secure pin (18) on support (21) with nut (19) and

washer (20). Secure stud (15) on support (21) with nut

4-490. INSTALLATION. See figure 4-8 and install the

(16) and washer (17).

relief valve as follows:

f. Install bushing (13) in cam (14). Secure cam on

a. Connect relief valve (27) to hydraulic pump (21).

support (21) stud with nut (12). Secure lever (10) on

Install two hose assemblies (5 and 26).

support (21) with nut (11). Install two lubrication fittings

(6).

4-491. FLOW CONTROL VALVE.

g. Secure cam end of assembled valve, bearing (9) and

4-492. REASSEMBLY. See figure 4-11 and reassemble

roller (8) on lever (10) with pin (7) and two cotter pins

the flow control valve as follows:

4-113