Body Position Indicator; Rock Ejectors; Inspection - Komatsu 830E-AC Shop Manual

Dump truck, serial numbers a30001-a30035
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BODY POSITION INDICATOR

The Body Position Indicator is a device mounted on
the canopy of the dump body. When the body is low-
ered, the indicator is visible to the operator. This
device should be inspected daily and repairs made if
required.

ROCK EJECTORS

Rock ejectors are placed between the rear dual
wheels to keep rocks or other material from lodging
between the tires. Failure to maintain the rock ejec-
tors could allow debris to build up between the dual
wheels and cause damage to the tires.

Inspection

1. The ejectors must be positioned on the center
line between the rear tires within 6.35 mm (0.25
in.).
2. With the truck parked on a level surface, the
arm structure (Refer to Figure 3-7) should be
approximately 88 mm (3.50 in.) from the wheel
spacer ring (3) when hanging vertical.
NOTE: With rock ejector arm (1, Figure 3-8) hanging
vertical as shown, there must be NO GAP at stop
block (3). Adjust stop block as necessary to obtain
NO GAP.
3. If the arm (1) becomes bent, it must be
removed and straightened.
4. The wear plates (2) must be replaced if
severely worn.
5. Inspect the mounting brackets (4, Figure 3-8),
pins (2) and stops (3) for wear and/or damage
and repair as necessary.
B3-8
FIGURE 3-7. ROCK EJECTOR
1. Rock Ejector Arm
2. Wear Plate
FIGURE 3-8. ROCK EJECTOR MOUNTING
BRACKET (Detail View)
1. Rock Ejector Arm
2. Pin
Dump Body
3. Rear Wheel Spacer
Ring
3. Stop Block
4. Mounting Bracket
B03025

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