Rap 2.42 Gripper Rotation Preset Sensor - Challenge CMT-130TC Service Manual

RAP 2.42 Gripper Rotation Preset
Sensor
Input 6
The rotator preset sensor is located on the grip-
per assembly as shown in Figure 2-66. The
sensor determines the home position of the rota-
tor assembly.
Possible Fault Indicators

Gripper rotator assembly does not pre-
set and continues to rotate.

Gripper rotator does not rotate to proper
position during initiation.
Initial Actions
Check for loose or damaged wire 52 at the elec-
trical panel.
Procedure
1. Switch the main power OFF.
2. Manually move the rotator assembly such
that the rotator disk covers the sensor.
3. Switch the main power ON and go to the di-
agnostic screen (GP 6.2 Input/Output Diag-
nostics). Does the diagnostic screen show
input "Gripper Rotation Preset" on?
Y N
Short wire 52 to wire 74. On the diagnostic
screen does input "Gripper Rotation Preset"
switch on?
Y N
Disconnect power and replace the main
PWB (REP 4.23 Main PWB Replace-
ment).
Adjust the sensor (GP 6.5 Proximity Sen-
sors) and replace if faulty (PL 5.7 Main As-
sembly 59000 (7/14)).
2. Status Indicator RAPs
4. Disconnect wire 52. On the diagnostic
screen does input " Gripper Rotation Preset
" switch off?
Y N
Disconnect power and replace the main
PWB (REP 4.23 Main PWB Replacement).
5. Adjust the sensor (GP 6.5 Proximity Sen-
sors) and replace if faulty (PL 5.7 Main As-
sembly 59000 (7/14)).
Figure 2-66. Rotator Preset Sensor
MAY 2019
2-50 CMT-130TC Book Trimmer