SUTPHEN TOWERS, INC. 2012
Manual-2012
_SL75-SA75-SP70.docx
Page 9 of 55
8/31/2012
STEPS FOR PLACING PTO IN GEAR
ENGAGE THE POWER TAKE-OFF (PTO) PLACING PTO IN GEAR
The PTO operates the hydraulic pump, which provides pressure to the hydraulic system.
An electric switch located near the center of the cab dash panel activates the
PTO. A pilot light will come on when the PTO switch is moved to the "in" position.
A. Engine must be at idle R.P.M.
B. Be sure there is at least 90 lbs. air pressure on truck air system.
C. Truck must be at complete stop, parking brake set, and transmission in neutral.
D. Move PTO switch on dash to "in" position. (Wait about 2 seconds.)
The cab controls are now set to operate the tower. The operator should move to the hydraulic
system control compartment, located on the driver's side, at the first door, left of the pump
panel.
If the fire pump is not in use, proceed to AERIAL TOWER SET-UP on page 12 of these
instructions.
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