Fuel Tank; Removal; Installation - Komatsu 830E Shop Manual

FUEL TANK

Removal

1. Raise truck body and install body safety cables.
2. Drain sediment from tank and dispose of prop-
erly. Drain remainder of fuel into clean contain-
ers.
3. Disconnect fuel tank wire harness and remove
clamps (9, Figure 2-4).
4. Remove ground wire (7).
5. Remove fuel supply (3, Figure 2-3) and return
hoses (2) and plug to prevent contamination.
6. Remove hydraulic filter assembly (5) mounting
hardware from fuel tank. Support filters by plac-
ing a chain over the frame rail. (It is not neces-
sary to disconnect hydraulic hoses.)
7. Attach lifting device to tank lift eyes.
8. Remove capscrews (4, Figure 2-4), and flat
washers (3).
9. Remove capscrews, lockwashers, and caps (1,
Figure 2-3) from upper mounting brackets.
10. Lift tank from brackets and move to work area.
11. Inspect rubber dampeners (2, Figure 2-4) and
replace, if necessary.
FIGURE 2-3. FUEL TANK
1. Upper Mount Trunnion
2. Fuel Return Hose
3. Fuel Supply Hose
B2-4
4. Fuel Gauge
5. Hydraulic Filters
6. Lower Mounting
Bracket
Structural Components

Installation

1. Lower tank into position over upper mounting
brackets.
2. Install caps, lockwashers, and capscrews at
upper mounting trunnions (1, Figure 2-3) and
tighten to 459 ft. lbs. (622 N.m) torque.
3. Install lower mount flatwashers (3, Figure 2-4)
and capscrews (4) and tighten to 310 ft. lbs.
(420 N.m) torque.
4. Attach ground wire, connect wire harness and
clamp in place.
5. Attach fuel supply (3, Figure 2-3) and return (2)
hoses.
6. Attach hydraulic filter (5) assembly to fuel tank.
7. Refill tank with clean fuel.
FIGURE 2-4. FUEL TANK MOUNTING BRACKET
(Lower Mount)
1. Fuel Tank
2. Rubber Dampener
3. Flatwasher
4. Capscrew
5. Frame Bracket
6. Main Frame
7. Ground Wire
8. Wire Harness
9. Harness Clamp
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