Inspection and Repair.

TM 55-1730-208-13

h. Remove safety relief valve (25) in accordance

4-8. Inspection and Repair.

with paragraph 3-27 c.

i. Remove intake and discharge valves (items 27

Inspect the pump assembly and cylinder and ram

through 30) in accordance with paragraph 3-27 d.

assembly as follows:

j. Remove plugs (31) and screen (32) from pump

body (38).

4-9. Pump Assembly.

k. Remove release assembly and associated

components (33 through 36) in accordance with

a. Inspect all parts of pump assembly for

paragraph 3-27 e.

corrosion, cracks, and excessive wear.

l. Remove connector assembly (37) from pump

b. Replace defective parts and remove corrosion

body (38).

by polishing with crocus cloth (item 6, table 1-2).

NOTE

c. Check clearance of pump piston in packing nut.

Replace pump piston and packing nut if clearance

Remove instruction and capacity

exceeds 0.011 inch.

decals (39 and 40) only if

d. Inspect pump body to insure pump passages

damaged.

are not obstructed. Clean pump passages to remove

any obstructions by flushing with dry cleaning solvent

4-7. Cylinder and Ram Assembly.

(item 1, table 1-2).

a. Remove socket (8, figure 3-3), pin (9), screw

e. Repair cracks in reservoir by welding.

(11), and chain (10) from cylinder (33).

f. Paint pump assembly in accordance with

b. Remove jack indicator rod (12) and rise

painting instructions outlined in TM 55-1500-204-25 / 1.

indicator tube assembly (13) by removing nut (14) from

4-10. Cylinder and Ram Assembly.

collar (22).

c. Remove jack pad socket assembly (15) from

a. Inspect all parts of cylinder and ram assembly

extension screw (17).

for corrosion, cracks, and excessive wear. Replace

d. Loosen ram bearing (24) and remove ram

defective parts and remove corrosion by polishing with

assembly (32) from cylinder (33).

crocus cloth (item 6, table 1-2).

NOTE

b. Inspect for bent or twisted indicator rod (12,

The ram assembly (32) may be

figure 3-3) and dented or bent rise indicator tube

removed from the cylinder by

assembly (13). indicator rod (12) may be straightened

gradually

applying

filtered,

using a rawhide mallet and wooden block. Replace

compressed air through the inlet

dented or bent rise indicator tube assembly.

port of the cylinder.

c. Inspect for bent extension screw (17) and burred

or distorted threads.

Replace defective extension

e. Remove nut (16) from extension screw (17).

screw.

f. Remove extension screw (17), plunger (18), and

d. Inspect ram bearing (24), bearing sleeve (28),

spring (19) from ram (32).

and bearing sleeve (31), for burrs, galling, and scratches

g. Remove retainer (20) from ram (32) by

in bearing surface. Repair by polishing with crocus cloth

removing screws (21). Remove collar (22).

(item 6, table 1-2).

h. Remove ram lock nut (23) from ram (32).

e. Inspect for bent ram (32) and burrs, chips, nicks,

i. Remove ram bearing (24) and key assembly

and scratches in grooved areas. Repair by honing with

(25) from ram (32).

a suitable abrasive stone and polishing with crocus cloth

j. Remove setscrew (26) and ram pin (27) from

(item 6, table 1-2). Replace bent ram.

ram (32).

f. Inspect exterior surface of cylinder (33) for

k. Remove bearing sleeve (28), preformed

gouges, nicks, and deep scratches. Repair by honing

packing (29). packing retainer (30), and bearing sleeve

with a suitable abrasive stone.

(31) from ram (32). Discard preformed packing and

g. Paint exterior surface of cylinder (33) in

packing retainer.

accordance with painting instructions outlined in TM 55-

NOTE

1500-204-25/ 1.

Remove nameplate (34), assembly

decal (36), rise indicator decal

(37), and capacity decal (38) only

if damaged.

4-3