Manitowoc Grove TMS800E User Manual

8-64
Published 01-29-2014, Control # 496-00
UNDERCARRIAGE TMS800E SERVICE MANUAL
Outrigger vertical jack cylinder
slow or erratic. (continued)
m. Main hydraulic pump
cavitation.
m. Replace or tighten hose and
fittings.
n. Worn or damaged hydraulic
pump section.
n. Repair or replace pump
section.
6. Outrigger stabilizer cylinder
retracts under load.
a. Damaged piston seals. a. Replace all cylinder seals.
b. Damaged holding valve seals. b. Replace seals.
c. Damaged holding valve. c. Replace valve assembly.
d. Scored cylinder barrel. d. Repair or replace cylinder.
e. Cracked or damaged piston. e. Replace piston and all
cylinder seals.
7. Jack cylinder extends while
machine is traveling.
a. Damaged piston seals. a. Replace all cylinder seals.
b. Scored cylinder barrel. b. Replace jack cylinder.
c. Cracked or damaged piston. c. Replace piston and seals.
d. Piston loose on cylinder rod. d. Replace seal and retorque.
8. Outrigger system will not activate
(from stowed or extended and
down position).
a. Hydraulic oil low. a. Replenish system.
b. Loose or broken wire on
switch.
b. Repair or replace wiring.
c. Clogged, broken, or loose
lines or fittings.
c. Clean, tighten, or replace
lines or fittings.
d. Damaged relief valve or
damaged control valve.
d. Repair or replace valve.
9. Outrigger system activates, but
selected outrigger will not stow or
extend and lower as desired.
a. Clogged, broken, or loose
hydraulic lines or fittings.
a. Clean, tighten, or replace
lines or fittings.
b. Loose or broken wire on
control switch or solenoid
valve.
b. Repair or replace wiring.
c. Damaged solenoid valve. c. Repair or replace valve.
d. Damaged control switch. d. Replace switch.
e. Damaged hydraulic
cylinder
. e. Repair or replace cylinder.
f. Damaged relief valve. f. Repair or replace relief valve.
10. Outriggers will not set. a. Improper sequence of
activation.
a. Activate individual control
switch; then activate system
control switch.
11. Two outriggers activate from
single control switch.
a. Damaged solenoid valves. a. Repair or replace.
12. One/two outriggers will not stow. a. Hydraulic lock. a. Recycle individual
outrigger(s).
13. Individual outrigger will not set or
stow.
a. Damaged piston seals. a. Replace seals.
b. Damaged check valve. b. Repair or replace valve.
c. Loosen or broken wire on
control switch or solenoid
valve.
c. Repair or replace wiring.
d. Damaged solenoid valve. d. Repair or replace valve.
Symptom Probable Cause Solution
Reference Only

Manitowoc Grove TMS800E Specifications

General

Brand	Manitowoc
Model	Grove TMS800E
Category	Construction Equipment
Language	English