HYDRAULIC PUMP REPAIR (Cont).
Clean and inspect components in accordance with Chapter 4, Section III, General Maintenance Instruc-
tions and the following:
Inspect drive shaft and gearshaft for scoring or grooving on teeth. Any scoring, groov-
ing, or burring of outside diameter of teeth requires replacement of shafts as a set. If
shafts are replaced, roller bearings must also be replaced.
Inspect thrust plates for wear, pitting, or discoloration. If found, replace thrust plates.
Apply a light coat of lubricating oil to surfaces of components as they are assem-
Press two new roller bearings (22) into pump housing (19). Press two new ring seals (15) and new roller
bearings (14) into end housing (11).
Press new lip seal (16) into drive shaft side of end housing (11).
Install two new check assemblies (17) to end housing (11).
Cut two pocket seals (12) 3/16 in. (4.8 mm)
long and place in center slots of thrust plate
(10). Use light grease to hold in place. Place
thrust plate, with pocket seals facing machined
surface, over bearings (14) of end housing (11)
and tap to about 1/32 in. (0.8 mm) from
Insert remaining four pocket seals (12) into
place around thrust plate (10). Tap thrust plate
down onto machined surface. Cut excess seal
from thrust plate.