Adjusting The Mast Stowed Limit Switch - Will Burt Night Scan Powerlite Operating Instructions Manual

NIGHT SCAN POWERLITE, POWERLITE XTREME, AND POWERLITE HDT
7.5.3

Adjusting the Mast Stowed Limit Switch

The Mast Stowed (near 0°) Switch (Figure 7-2) senses that the mast is in the saddle upon power
up, and when the mast is nearing the saddle during stowing. The circuit then looks for a pre-
determined current rise (for a maximum of 0.5 seconds) to indicate a solid nesting before
shutting off. This current monitoring allows the controls to drive the RCP into the saddle to
remove all mechanical play for vehicle transport. The limit switch is activated by a magnet
located on the actuator arm.
To adjust the Mast Stowed Switch:
1. Make certain that the base is level.
2. Remove the two base covers to access the switches and Base Board.
3. Raise the mast to gain access to the Mast Stowed Switch.
4. Loosen the lock nuts to adjust the switch position in the slot.
5. Lower the mast to the stowed position by holding the "Mast Down" button until the mast is
stowed. Immediately release the "Mast Down" button when the mast is stowed. If you drive
the mast too far into the saddle, you may receive a "1,04" error (excessive amp draw during
actuator decline). Do not use the Auto Stow® feature to stow the mast.
6. Check that the mast is properly stowed. This will be indicated by the diagnostic LEDs on the
Base Board. As the mast comes down D11 and D13 will be green, and D7 will be yellow.
Once stowed, D7 will also turn green (see Figure 7-1).
7. Raise the mast to gain access to the Mast Stowed Switch.
8. Secure the switch in position by tightening the lock nuts.
9. Raise and lower the mast several times, checking that the mast stows each time, and adjust
the switch if necessary. There should be no mechanical play between the RCP and the
saddle when properly stowed.
10. Replace the base covers.
TP-4723701-U
MAY 2021
OPERATING INSTRUCTIONS
PAGE 61 OF 98