Manitowoc Grove RT540E Service Maintenance Manual

Published 4-20-2015, Control # 502-01 4-39
RT540E SERVICE MANUAL BOOM
4
GROVE
3. Telescope cylinder
will not extend.
a. Low hydraulic oil level. a. Replenish oil to proper level.
b. Relief valve malfunctioning. b. Repair or replace relief valve.
c. Excessive load. c. Reduce load.
d. Clogged hose and fittings. d. Replace hose or fittings. (Refer to
Manitowoc Crane Care Parts Manual).
e. Broken valve spool. e. Replace valve.
f. Damaged piston seals. f. Replace all cylinder seals.
g. Damaged piston(s). g. Replace piston(s) and all cylinder
seals.
h. Bent boom section(s). h. Replace damaged boom section(s).
i. Broken hydraulic pump coupling. i. Replace broken hydraulic pump
coupling.
j. Worn or damaged hydraulic pump
section.
j. Repair or replace pump section.
4. Telescope cylinder
will not retract.
a. Low hydraulic oil level. a. Replenish oil to proper level.
b. Relief valve damaged. b. Repair or replace relief valve.
c. Excessive load. c. Reduce load. (Refer to load chart).
d. Inoperative check valve. d. Replace check valve.
e. Clogged hose and fittings. e. Replace hose or fittings. (Refer to
Manitowoc Crane Care Parts Manual).
f. Broken valve spool. f. Replace valve section.
g. Broken piston(s). g. Replace piston(s) and all cylinder
seals.
h. Damaged piston seals. h. Replace all cylinder seals.
i. Bent boom section(s). i. Replace damaged boom section(s).
j. Broken hydraulic pump coupling. j. Replace broken hydraulic pump
coupling.
k. Worn or damaged hydraulic pump. k. Repair or replace pump.
l. Broken hydraulic pump shaft. l. Replace pump shaft.
SYMPTOM PROBABLE CAUSE SOLUTION
Reference Only

Manitowoc Grove RT540E Specifications

General

Brand	Manitowoc
Model	Grove RT540E
Category	Construction Equipment
Language	English