139Expert(t) 2000
TM
Maintenance Manual
Problem Possible cause(s) Solution(s)
The hydraulic
system does not
engage.
There is a red emergency
STOP button pressed in.
Check all red emergency
STOP buttons and pull out
the one that has been
pressed in.
Low air pressure Make sure the air pressure
is above 90 PSI.
Engine runs at more than
900 RPM.
Lower the engine RPM to
less than 900 RPM. If you
can’t accomplish such
task, contact your local
chassis dealer.
Electrical fault Check fuses on the
console and the main
fuses on the batteries.
Problem Possible cause(s) Solution(s)
No hydraulic
pressure
The pump is not engaged. Turn on the pump switch.
Hydraulic pressure needs
adjustment.
Perform the hydraulic
pressure adjustment
procedure.
Problem Possible cause(s) Solution(s)
The pump is
leaking oil
Hydraulic connections are
loose.
Check and tighten all
hydraulic connections.
The pump is damaged. Change the hydraulic
pump.