M816 Clutch problem

[HPDLakeSgt]

My department has an M816 wrecker truck. It was driven to my office just fine. Now the clutch pedal goes all the way to the floor and won't return. The return spring is still attached. It takes some force to pull the pedal back up, but it won't stay up.

Any ideas? Out of adjustment? Bad clutch? I want to get an idea of what might be wrong before I send it in to be fixed. This is my first experience with the M809 series.

Thanks

Sgt. T.W. Harding

 

[Westech]

rusted input shaft? First off lube the shaft, take off the cover on the bottom of the bell housing and there is a zerk on the throw out bearing. Make sure to lube all the moving joints also. There should be zerks, if not hit them up with some spray oil like "PB blaster" or like said spray.

 

[Gamagoat1]

Make sure someone hasn't raised the clutch control on the deck in front of the rear winch.. This would pressurize the roto chamber and hold the clutch pedal down or disengaged.

 

[Stonepicker1]

Make sure someone hasn't raised the clutch control on the deck in front of the rear winch.. This would pressurize the roto chamber and hold the clutch pedal down or disengaged.

This has happened to me a few times.

 

[Blood_of_Tyrants]

If not above, look for bent linkage.

 

[HPDLakeSgt]

Make sure someone hasn't raised the clutch control on the deck in front of the rear winch.. This would pressurize the roto chamber and hold the clutch pedal down or disengaged.

I bet that is what it is. Overnight the clutch pedal came back up. With engine not running clutch pedal worked fine, but after starting engine and trying to move truck, clutch pedal sunk to floor and stayed there.

Still reading all 400+ pages of TM.

Thanks

 

[HPDLakeSgt]

Solved

Problem solved. Clutch control on rear deck was raised. Thanks for sharing ya'lls hard earned knowledge.