Operator`s manual

4.5 LADDER TROUBLE-SHOOTING GUIDE

PROBLEM PROBABLE CAUSE REMEDY

1. No hydraulic pressure a) PTO not engaged. a) Switch PTO to

at either Outrigger. "ENGAGED".

b) Ladder/Outrigger b) Pull valve out to

Selector Valve not select Outrigger.

pulled out.

c) Electric/PTO Pump c) Move switch to

Switch not in "Down" position.

correct position.

d) Pre-set engine rpm d) Increase engine rpm

is too low. setting to a

minimum of 1200.

2. PTO/Hydraulic Pump a) Pre-set throttle a) Reduce setting to

is noisy. setting is too a minimum of 1200.

high.

b) Hydraulic oil b) Fill the hydraulic

level too low. oil tank to the

correct setting on

the dip stick.

c) Valve on hydraulic c) Ensure valve 6

suction line (see Figure 5-2)

partially closed. is fully open.

3. Outrigger fails a) Ladder/Outrigger a) Pull valve out to

to operate. Selector valve not select Outrigger.

pulled out.

b) Hydraulic pressure b) Check hydraulic

too low. Pressure A

minimum of 1000 psi.

is required.

4. Ladder will not a) Ladder Bed Lock Assy a) Ensure the PTO Switch

elevate. not disengaged. is at "ENGAGED".