Buckeye Quick Fill Fuel System (M05003); Tank Breather Valve - Komatsu 830E Shop Manual

FUEL TANK BREATHER VALVE
Maintenance
Normal maintenance involves cleaning or replacement
of the breather valve filter during 1000 hour servicing.
Operation in extremely dusty conditions may require
more frequent cleaning or replacement intervals.
Filter Service
1. Remove three capscrews (7, Figure 5-1) on vent
housing.
2. Remove housing (1) and filter (3).
3. Clean the filter in solvent and blow dry with com-
pressed air.
4. Inspect filter for damage and replace if necessary.
5. Install filter on seat (6).
6. Inspect the housing O-ring seal (8) and replace if
necessary.
7. Install the housing and secure in place with cap-
screws (7).
Disassembly
1. Remove breather valve assembly from the fuel
tank. (Refer to Figure 5-2.)
2. Loosen three capscrews (7, Figure 5-1) and re-
move vent housing (1).
3. Remove filter (3).
4. Compress the spring (12, Figure 5-1) and remove
the cotter pin (17).
5. Remove the retaining washer (16), spring and balls
(13, 14, and 15).
Inspection
1. Inspect filter and clean or replace as required.
2. Clean all parts thoroughly and inspect for damage.
Assembly
1. Assemble using new O-ring seals.
2. Install filter (3) and housing (1).
3. Insert balls in order as shown in Figure 5-1.
a. Install aluminum ball.
b. Install plastic ball.
M05003 5/90
BUCKEYE QUICK FUEL SYSTEM
Buckeye Quick Fill Fuel System
FIGURE 5-1. FUEL TANK BREATHER VALVE
1. Vent Housing
2. Inner Tube
3. Filter
4. Cotter Pin
5. O-ring
6. Seat
7. Capscrew
8. O-ring
9. Vent Base
c. Install steel ball.
4. Insert spring (12) and retaining washer (16). Com-
press spring to insert cotter pin (17).
5. Install assembly in fuel tank.
91492
10. Nipple
11. Outer Tube
12. Spring
13. Aluminum Ball
14. Plastic Ball
15. Steel Ball
16. Retaining Washer
17. Cotter Pin
M5-1