Komatsu 830E Shop Manual page 739

Assembly
Note: Use Loctite® 242 (or equivalent) thread locker
on all torqued, threaded connections. Use extreme
care to prevent thread locker from flowing into adja-
cent areas such as clearance fits and ball check.
Allow a minimum of 30 minutes cure time before
operating pump.
1. Support ball bearing (8, Figure 3-9) inner race
and press eccentric (7) into bore. Install small
retaining rings (6).
2. Assemble crankrod assembly parts; large retain-
ing rings (4), inner weights (3), outer weights (2)
and install flat head screws (1). Tighten to 100 -
110 in. lbs. (11.3 - 12.4 N.m) torque.
3. Using a new O-ring (10), install plunger tube (11)
on outlet pin (9). Tighten to 100 - 110 in. lbs.
(11.3 - 12.4 N.m) torque.
4. Assemble the wrist pin anchor (14), backup
washer (15), cup seal (16) and plunger link rod
(17) onto plunger tube (11). Tighten to 100 - 110
in. lbs. (11.3 - 12.4 N.m) torque.
5. Assemble spring (18), ball (19), and plunger (20)
on plunger link rod (17). Tighten plunger to 100
- 110 in. lbs. (11.3 - 12.4 N.m) torque.
6. Install reciprocating tube (21) onto wrist pin
anchor (14). Tighten to 20 - 25 ft. lbs. (27.1 -
33.9 N.m) torque.
7. Install cup seal (22), O-ring (23), cylinder (24),
ball cage (25), ball (26), O-ring (27) and check
seat (28) into reciprocating tube (21). Tighten
check seat housing to 20 - 25 ft. lbs. (27.1 -
33.9 N.m) torque.
P03022
8. Assemble crank rod assembly, to pump with
bushings (13) and button head screws (12).
Tighten screws to 100 - 110 in. lbs. (11.3 - 12.4
N.m) torque.
9. Place pump subassembly (parts 1 through 28)
into pump housing (46).
10. Install new O-ring (54), backup washer (53) and
O-ring (52) and bronze bushing (51) into hous-
ing tube (55).
11. Install housing tube assembly onto pump hous-
ing (46). Be certain reciprocating tube (21) is
inserted through both bushings. Using a 0.75 in.
(19 mm) diameter rod through the inlet holes at
bottom of tube, tighten to 20 - 25 ft. lbs. (27.1 -
33.9 N.m) torque.
12. Install shovel plug (56) and retainer (57).
13. Install new backup rings (47), O-rings (48 & 49),
and outlet pin nuts (50). Tighten to 30 - 35 ft.
lbs. (40.7 - 47.5 N.m) torque.
14. Install gasket (41) and motor (42) on pump
housing (46). Install washers (43) and socket
head screws (44).
15. Install shovel plug (56) in housing tube (55).
Install retaining ring (57).
16. Install gasket (31), cover (30) and six self-tap-
ping screws (29), on pump housing.
17. Using new O-rings (40), install manifold (37) on
motor (42). Install socket head screws (33).
18. With the pump assembly in its normal operating
position, add SAE 10W-30 motor oil to pump
housing until oil is level with bottom of pipe plug
(45) hole. Install pipe plug.
Automatic Lubrication System P3-13