Megatower Operation Manual
MAST TROUBLESHOOTING
No power to unit.
o
Check to ensure the generator is running.
o
Check main breaker switch at generator is turned ON.
o
Check breaker panel and ensure nothing has been tripped or is off.
Lift ram pendant control is not responsive and mast will not rise to its vertical position.
o
Check mast head has been unlatched and the locking pin has been released.
o
Check mast retention pin is disengaged and pulled out all the way.
o
Check mast
head hasn’t extended during transport. If the mast head is not fully retracted
pressing up against the mast retract sensor, this will disable the hydraulic ram.
The air compressor will not engage and the mast does not elevate.
o
Check mast is fully upright to its vertical position and engaging the mast upright sensor
towards the base of the mast.
o
Check mast retention pin is fully engaged and locked in place.
o
Check all breakers for generator and breaker panel.
o
Check and press the air compressor overload protection switch (2) in diagram below.
The mast will not lower to its horizontal position. The lift ram is unresponsive.
o
Check the mast is fully lowered and engaging the mast retract sensor.
o
Check mast retention pin is fully disengaged.
o
Check that the mast head locking pin has not been engaged.
o
Check to ensure the generator is running and all breakers are turned ON.
MAST RETENTION PIN
MAST HEAD LOCKING PIN
MAST UPRIGHT
SENSOR
MAST RETRACT
SENSOR
COMPRESSOR OVERLOAD
PROTECTION SWITCH RESET
