Komatsu 830E Shop Manual page 455

Reassembly
1. Thoroughly lubricate each part prior to installa-
tion using clean, type C-4 hydraulic oil.
2. Reassemble the Amplifier spool assembly in
reverse order. Refer to steps 12 & 13, and Fig-
ure 5-9 under disassembly.
3. Install orifice screw (13, Figure 5-7). Tighten ori-
fice screw to 4 in. lbs. (.5 N.m). Install check
valve (54). Tighten check valve to 8 in. lbs. (1
N.m). Install orifice screw (53). Tighten orifice
screw to 8 in. lbs. (1 N.m) torque.
4. Install seal (21). Install relief valve assembly
(20), seal (5), and plug (20). Tighten plug to 22
in. lbs. (2.5 N.m) torque.
5. Install counterpressure valve assembly (15).
Install plug (17) using new O-ring (16).
6. Install both shock and suction valves (12 & 28)
as complete units. Install spring stop (22)
springs (23 & 24) and spring control (25). Install
orifice screws (26 & 35) if removed from main
spool (29). Install main spool (29).
7. Install amplifier spool assembly (51). Install pri-
ority valve spool (43) and spring (42). Install
spring (55).
L05026
8. Install spring control (31), springs (32 & 33) and
spring stop (34).
9. Lubricate O-rings (6, 7 & 8) with molycote
grease and position on cover (5). Install end
cover (5). Install capscrews (3) with lockwash-
ers (4). Tighten capscrews to 2 ft. lbs. (2.5
N.m). Install capscrew (1) and lockwasher (2).
Tighten capscrew to 6 ft. lbs. (8 N.m) torque.
10. Lubricate O-rings (40 & 49) with molycote
grease and install on cover (47). Install end
cover (47). Install capscrews (36) with lock-
washers (39). Tighten capscrews to 2 ft. lbs.
(2.5 N.m). Install capscrew (37) with lock-
washer (38). Tighten capscrew to 6 ft. lbs. (8
N.m) torque.
11. To help prevent contamination during storage or
installation, install plastic plugs in each valve
port.
Steering Component Repair L5-11