45
MicroController Control System
Testing And Adjusting
Control and Power System
Operational Checks
All operational checks are to begin with the
battery connected, directional switch in neutral,
drive wheels off the ground and the accelerator
and parking brake released.
NOTE:
Perform all operational checks before
returning to the Troubleshooting Check List.
Check 1: Key Switch, Seat Switch and Power
Steering
1.
Activate the key and seat switch. The line
contactor activate and the hydraulic pump motor
should turn on at slow speed (idle).
2.
Turning the steering wheel will increase the
hydraulic pump motor speed (boost-up).
3.
After five to ten seconds the line contactor
deactivates and the motor turns off(PP).
Check 2: Lift Performance
1.
Pull the lift lever half way. The hydraulic pump
motor activates slowly to a preset speed.
2.
Pull the lift lever to maximum. The hydraulic pump
motor activates full speed.
Check 3: Tilt and Auxiliary Performance
1.
Slowly pull and push the tilt and auxiliary levers.
The hydraulic pump motor activates to one of the
preset speeds with each lever movement.
Check 4: Forward Drive Performance
1.
Engage the parking brake. Select forward direction
and depress the accelerator slightly. The drive
wheels should NOT turn.
2.
Release the parking brake, select forward direction
and depress the accelerator slightly. The drive
wheels should turn forward slowly.
3.
Slowly increase the amount of accelerator
depression. The drive wheels should turn forward
and slowly increase in speed.
4.
Depress the accelerator fully.
The drive wheels will turn forward at full speed.
Check 5: Reverse Drive Performance
1.
Select reverse direction and depress the
accelerator slightly. The drive wheels should turn
in reverse slowly.
2.
Slowly increase the amount of accelerator
depression. The drive wheels should turn in
reverse and slowly increase in speed.
3.
Depress the accelerator fully. The drive wheels
will turn in reverse at full speed.
Check 6: Electrical Braking (Plugging)
Performance
NOTICE
Do not perform this check with the lift truck at
full speed. Damage to the Drive Train can result.
1.
Select forward direction and depress the
accelerator to the 80% of max. acceleration.
While continuing to depress the accelerator,
change the direction switch to reverse.
There should be a smooth deceleration of
forward tire rotation. After the forward tire rotation
stops, there is a smooth acceleration of reverse
tire rotation.
2.
Continue to depress the accelerator while in
reverse direction. Change the direction switch to
forward. There should be a smooth deceleration
of reverse tire rotation. After the reverse tire
rotation stops, there is a smooth acceleration
forward tire rotation.
Summary of Contents for B20S-3
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