Manitowoc Grove RT540E Service Maintenance Manual

Published 4-20-2015, Control # 502-01 4-41
RT540E SERVICE MANUAL BOOM
4
GROVE
Boom lowers
slowly. (Continued)
j. Worn hydraulic pump section. j. Repair or replace pump section.
k. Piston rod broken (loose from piston). k. Replace piston rod and all cylinder
seals.
5. Boom will not raise. a. Low hydraulic oil. a. Replenish hydraulic oil to proper level.
b. Main relief valve or circuit relief valve
damaged.
b. Repair or replace relief valve.
c. Excessive load. c. Reduce load as required.
d. Worn or damaged hydraulic pump
section.
d. Repair or replace pump section.
e. Broken pump shaft. e. Replace pump shaft and seals.
f. Broken pump drive coupling. f. Replace drive coupling.
g. Broken control valve spool. g. Replace control valve.
6. Boom will not
lower.
a. Low hydraulic oil. a. Replenish hydraulic oil to proper level.
b. Main relief valve or circuit relief valve
damaged.
b. Repair or replace relief valve.
c. Worn or damaged hydraulic pump
section.
c. Repair or replace pump section.
d. Broken pump shaft. d. Replace pump shaft and seals.
e. Broken pump drive coupling. e. Replace drive coupling.
f. Broken control valve spool. f. Replace control valve.
Symptom Probable Cause Solution
Reference Only

Manitowoc Grove RT540E Specifications

General

Brand	Manitowoc
Model	Grove RT540E
Category	Construction Equipment
Language	English