Troubleshooting Mechanical; Table 4-5. Mechanical Troubleshooting - Will Burt Night Scan Chief Installation, Operation & Maintenance Manual

4.6 TROUBLESHOOTING MECHANICAL

Symptom
Mast sticking
during extension or
retraction
Mast leaks down
when extended
Erratic or noisy
when raising to 90
degrees
RCP continually
pans or tilts
Pan or tilt motor will
not respond with no
errors displayed on
Remote Control(s)
Mast fails to fully
nest in saddle and
disconnects power
Mast will not begin
to lower from 90 °
position
Mast will not begin
to lower from 90 °
position
Revision 1

Table 4-5. Mechanical Troubleshooting

Root Issue
Mast is dirty and/or requires
lubrication.
Air leak in mast or
valve/compressor assembly.
Bent or worn actuator or pivot
shaft
Bent flag in RCP
Broken or loose motor wire lead
or faulty motor
Binding of actuator, software
fault or control erroneously
sensed an increase in current
Mast tube sections do not fully
collapse
Magnetic switch band clamped
to mast is not made
Troubleshooting Sequence
1) Clean and lubricate mast.
2) If condition continues, mast requires
overhaul.
Use a soapy water solution to pinpoint the leak.
If the mast is leaking, it will require new seals.
If the valve or compressor assembly is leaking
at a fitting, remove the fitting, clean and reinstall
using thread tape or sealant. Replace a faulty
valve or compressor.
Replace damaged component
1) Remove RCP cover straighten or replace
flag.
2) Make sure wiring is not wound tight. Reset
home position
1) Reconnect wire lead
2) Replace motor.
1) Check that base board has software
version 2.6 or later. See section 0 for
verifying revision. Contact Will-Burt if
update is required.
2) See Table 4-1, Table 4-2 and Table 4-3 for
software fault codes.
3) Check actuator for binding. Replace
actuator if binding.
1) Extend and retract mast.
2) Check tube sections for damage.
3) Internal coil cord may be binding, contact
Will-Burt.
1) Magnetic switch is may be out of
adjustment. Loosen clamp and slide switch
up and down the mast until contact is
established.
2) Check wiring
3) Replace defective magnetic switch.
Night Scan Chief
4-19