Komatsu 530M Operation & Maintenance Manual page 142

Dump truck
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OM6007 2/99
Payload Meter II
Installation
1. Install new O-ring on sensor (4, Figure 6-11) and
install sensor into adapter (3). Tighten sensor to
22--29 ft.lbs. (30--39 N.m) torque.
2. Install new O-ring on adapter (3) and install com-
plete adapter/sensor assembly into valve (2).
Hold valve body and tighten adapter/sensor as-
sembly to 103 ft.lbs. (176 N.m) torque.
3. Connect sensor wiring to truck wiring harness.
The sensors have three wires. Be sure that wires
are connected correctly. (Figure 6-12)
FIGURE 6-12. SENSOR SIDE CONNECTOR VIEW
Pin Number
Wire Color
1
Black
2
Red
3
White
INCLINOMETER
As the truck is tilted fore or aft, the weight distribution
between the front and rear axles changes. To compen-
sate for this, the inclinometer measures the ground
angle at which the truck rests. This data is then sent
to the payload meter so it can calculate the correct
payload weight. The inclinometer is located below the
operator's center console (passenger seat structure).
Removal
1. Disconnect inclinometer wire lead from harness.
2. Remove the three capscrews, nuts and lockwash-
ers (4, Figure 6-13) and inclinometer (3).
Installation
1. Operator's Center
Wire Function
2. Bracket
Ground (GND)
+ Power
Signal
Adjustment
Optional Equipment - Section 6
1. Install inclinometer (3, Figure 6-13) with cap-
screws, nuts and lockwashers (4).
FIGURE 6-13. INCLINOMETER
Console Frame
2. Connect inclinometer wiring to the truck wiring
harness. (Figure 6-14)
Be sure that wires are connected correctly.
FIGURE 6-14. INCLINOMETER SIDE
CONNECTOR VIEW
Pin Number
Wire Color
1
Black
2
White
3
Red
1. Park the truck on a 0% grade.
2. Loosen the three Inclinometer mounting cap-
screws (4, Figure 6-13) and rotate the Inclinome-
ter until a voltage range of 2.6 ±0.1 Volts can be
measured (using aVolt/Ohm Meter) at pins 1 and
2 of the inclinometer electrical harness connector.
3. Tighten all capscrews (4, Figure 6-13) to standard
torque, after adjustment.
Page 6-27
3. Inclinometer
4. Capscrew, Nut and
Lockwasher
Wire Function
Ground (GND)
Signal
+ Power

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