TANDEM GEAR PUMP REPAIR - continued - TM-10-3930-673-340588

TM 10-3930-673-34

16-3. TANDEM GEAR PUMP REPAIR (CONT)

d. Assembly.

CAUTION

Do not grip on or near any machined

surfaces during disassembly or

assembly. Failure to follow this

precaution will cause part damage.

NOTE

Wipe all sealing surfaces clean and

dry. Apply film of clean hydraulic oil

to all seals as they are installed.

(1)

Install parts (18 and 31 through 34)

in end cover (30).

(a)

Install four studs (18) in end

cover (30).

(b)

If removed, install plate (34) and

two screws (33) on end cover (30).

TR01295

(c)

Place end cover (30) in a vise with

mounting face down.

(d)

If removed, install plug (32) in end cover (30). Stake each plug with a punch at both ends of

screwdriver slot and around edges. Peen edge of hole 1/32 to 1/16 inch with a 1-1/2 inch steel

diameter ball.

(e)

Apply sealant on lip of seal (31). With metal side of seal up, use an arbor press and a bar

(1-3/4 in. [44.5 mm] diameter by 2 in. [50.8 mm] long bar), press seal into end cover (30). Press

seal flush with recess. Wipe off excess sealant.

(2)

Install gear housing (19) and parts (21, 23, and 25 through 28) on end cover (30).

(a)

If removed, install dowel pins (29) in gear housing (19) or end cover (20).

(b)

Apply grease on two seals (26). Install seals into grooves on gear housing (19).

CAUTION

If parts are difficult to fit during assembly, tap gently with a soft hammer. Use care to

prevent part damage.

(c)

Ensure that dowel pins (29) are in place. Install gear housing (19) on end cover (30). Gently

tap gear housing tight against end cover use care to prevent damage to seals (26).

16-12