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Grove
Published 01-14-2021 Control # 707-01
8-87
TMS9000-2 SERVICE MANUAL
CARRIER
8
Outrigger Beam (with Adjustable Wear Pads)
Removal
1.
Remove the rear cover of the outrigger box.
2.
Disconnect both string potentiometer spring clips.
3.
Extend the outrigger slightly to facilitate attaching a
lifting device to the outrigger beam.
4.
From the opposite side of the outrigger housing, remove
the end cover.
Cracked or damaged piston.
Replace piston and all cylinder seals.
Jack cylinder extends while machine
is traveling.
Damaged piston seals.
Replace all cylinder seals.
Scored cylinder barrel.
Replace jack cylinder.
Cracked or damaged piston.
Replace piston and seals.
Piston loose on cylinder rod.
Replace seal and retorque.
Outrigger system will not activate
(from stowed or extended and down
position).
Hydraulic oil low.
Replenish oil to proper level.
Loose or broken wire on switch.
Repair or replace wiring.
Clogged, broken, or loose lines or
fittings.
Clean, tighten, or replace lines or fittings.
Damaged relief valve or damaged
control valve.
Repair or replace valve.
Outrigger system activates, but
selected outrigger will not stow or
extend and lower as desired.
Clogged, broken, or loose hydraulic
lines or fittings.
Clean, tighten, or replace lines or fittings.
Loose or broken wire on control
switch or solenoid valve.
Repair or replace wiring.
Damaged solenoid valve.
Repair or replace valve.
Damaged control switch.
Replace switch.
Damaged hydraulic cylinder.
Repair or replace cylinder.
Outrigger will not set.
Improper sequence of activation.
Activate individual control switch; then
activate system control switch.
Two outriggers activate from single
control switch.
Damaged solenoid valves.
Repair or replace damaged parts.
One/two outriggers will not stow.
Hydraulic lock.
Recycle individual outrigger(s).
Individual outrigger will not set or
stow.
Damaged piston seals.
Replace seals.
Damaged check valve.
Repair or replace valve.
Jack cylinder retracts under load.
Loose or broken wire on control
switch or solenoid valve.
Repair or replace wiring.
Damaged solenoid valve.
Repair or replace valve.
SYMPTOM
PROBABLE CAUSE
SOLUTION
Fo
r
Reference
Only