6-22 Published 11-22-2016, Control # 345-12
SWING SYSTEM RT9130E-2 SERVICE MANUAL
1. Check the collector ring and brush assembly for any
corrosion, pitting, arcing, and wear.
2. Check the collector ring setscrews and ensure they are
tight.
3. Check the brush and arm assembly springs. Ensure
they are holding the brushes firmly against the collector
rings.
Slew Potentiometer Preliminary Zero Adjustment
Procedure
1. Rotate the superstructure over the front and engage the
swing lock pin.
NOTE: Refer to the PAT rated capcity limiter operator’s
manual for detailed instructions. Complete the RCL
console setup according to the crane’s current
operating configuration.
2. Press the 1 keypad button on the RCL console.
3. Press the CTRL keypad button on the RCL console.
4. Enter authorization code 64356, then press the return
keypad button on the RCL console.
5. Press the return keypad button two more times to
display the slew adjustment screen.
6. Press the + and the - keypad buttons on the RCL
console simultaneously. Note the indicator line moves to
zero on the bar graph on the slew adjustment screen.
7. Press the ESC keypad button on the RCL console.
Slew Potentiometer Adjustment
1. Rotate the superstructure over the front and engage the
swing lock pin.
2. Set the RCL console to read slewing angle as follows:
NOTE: Refer to the PAT rated capacity limiter DS350/1319
operator’s manual for detailed instructions.
a. Complete the RCL console setup according to the
crane’s current operating configuration.
b. Press limits LIM.
c. Press 4 for slew angle/work area definition limits.
d. Press 1 for slew angle.
e. Press 2 or 3 to display slewing angle.
3. Remove the electrical swivel cover.
4. Disengage the swing lock pin and swing the
superstructure approximately 10 degrees to the right
(clockwise). Slowly swing back to the left and engage
the swing lock pin.
NOTE: If the superstructure swings past the swing lock pin
engaged position, step 4 must be repeated.
5. Loosen the three screws that secure the slew
potentiometer to the mounting plate.
6. Rotate the body of the slew potentiometer until the slew
angle indicates 0.6 ± 0.1 degree.
NOTE: The slew angle indication in step 6 may not be
obtainable due to limited wire length on the
potentiometer, or the electrical terminals
interference with one of the three mounting screws.
If this occurs, reposition the collar on the
potentiometer shaft and repeat steps 4 thru 6.
7. Tighten the three screws that secure the slew
potentiometer to the mounting plate. Install the electrical
swivel cover.
8. Disengage the swing lock pin and swing approximately
10 degrees to the left (counterclockwise). Slowly swing
back to the right and engage the swing lock pin.
NOTE: If the superstructure swings past the swing lock pin
engaged position, step 8 must be repeated.
9. If the angle indicated on the console does not exceed ±
1.0 degree, proceed to step 10. If the indicated angle
exceeds ± 1.0 degree, return to step 4.
10. Disengage the swing lock pin and swing approximately
10 degrees to the right (clockwise). Slowly swing back to
the left and engage the swing lock pin.
NOTE: If the superstructure swings past the swing lock pin
engaged position, step 10 must be repeated.
11. If the angle indicated on the console does not exceed ±
1.0 degree, proceed to step 12. If the indicated angle
exceeds ± 1.0 degree, return to step 3.
12. Disengage the swing lock pin and swing approximately
10 degrees to the left (counterclockwise). Slowly swing
back to the right and engage the swing lock pin.
NOTE: If the superstructure swings past the swing lock pin
engaged position, step 12 must be repeated.
13. Verify the angle indicated on the console does not
exceed ± 1.0 degree. If the indicated angle exceeds ±
1.0 degree, return to step 3.
CAUTION
Do not attempt to rotate the slotted shaft in the center of
the slew potentiometer.
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