Manitowoc Grove TMS700E User Manual

SWING SYSTEM TMS700E SERVICE MANUAL
6-4 Published 01-29-2015, Control # 512-01
MAINTENANCE
Troubleshooting
Symptom Probable Cause Solution
1. Boom swing
operation erratic in
either direction.
a. Low engine rpm. a. Increase engine rpm to obtain smooth
swing operation.
b. Low hydraulic oil. b. Check for leaks. Repair any found.
Replenish hydraulic oil to proper level.
c. Damaged relief valve. c. Replace relief valve.
d. Swing brake dragging (not releasing
properly).
d. Readjust and/or replace necessary
parts.
e. Improper movement of control to
neutral.
e. Feather controls to neutral to maintain
smooth stopping action.
f. Insufficient lubricant on swing bearing. f. Lubricate bearing properly. Refer to
Lubrication, page 9-1.
g. Crane not level. g. Level crane using outriggers.
h. Damaged swing motor. h. Repair or replace swing motor.
i. Excessive overload. i. Reduce load. Refer to load capacity
chart.
j. Restricted or partly clogged hydraulic
hose or fittings.
j. Replace hose or fittings.
k. Pump cavitation in swing section. k. Tighten suction hose or replace any
damaged fitting. Check hydraulic tank
level.
l. Improperly torqued turntable bolts. l. Torque turntable bolts evenly.
m. Excessive preload on upper and lower
pinion shaft bearing.
m. Adjust as necessary.
n. Improperly torqued swing motor
attachment bolts.
n. Torque swing motor attachment bolts.
o. Malfunction of the swing box. o. Remove swing box and make
necessary repairs.
p. Worn or damaged pump. p. Repair or replace damaged pump.
q. Damaged swing directional control
valve.
q. Repair or replace swing directional
control valve.
r. Damaged swing pinion. r. Replace pinion.
s. Damaged turntable bearing. s. Replace turntable bearing.
2. Boom swing
operation erratic in
one direction only.
a. Crane not level. a. Level crane using
outriggers.
b. T
urntable bearing binding due to
continuous limited swing. (Example:
concrete pourer.)
b. Rotate machine 360 degrees in both
directions several times and lubricate
bearing.
c. Restricted hose or fitting. c. Replace hose or fitting.
d. Damaged swing directional control
valve.
d. Replace swing directional control
valve.
e. Damaged swing pinion. e. Replace pinion.
f. Damaged turntable bearing. f. Replace turntable bearing.
Reference Only

Manitowoc Grove TMS700E Specifications

General

Brand	Manitowoc
Model	Grove TMS700E
Category	Construction Equipment
Language	English