Manitowoc Grove RT540E Service Maintenance Manual

Published 4-20-2015, Control # 502-01 8-17
RT540E SERVICE MANUAL UNDERCARRIAGE
8
GROVE
Maintenance
Troubleshooting
General
A schedule for the periodic adjustment, cleaning, inspection,
and lubrication of brake equipment should be established by
the operator on the basis of past experience and severity of
operation.
The disc brakes are not adjustable. Brakes should be
cleaned, inspected, and linkage lubricated periodically to
assure maximum performance.
Bleeding the Brake System
The brake system should be bled whenever air becomes
entrapped within the brake system (usually characterized by
a spongy feeling during brake pedal application), whenever
any brake system line has been opened, or whenever any
brake component has been replaced.
Always start at the point in the system that is furthest from
the tandem brake valve and work back toward the tandem
Symptom Probable Cause Solution
1. Brakes are poor. a. Lining thickness less than
3mm (0.125 in).
a. Replace lining.
b. Brake pedal operation. b. Free mechanical linkage.
c. Restriction or leaks in lines. c. Check all lines for leaks and
restrictions.
d. Low hydraulic oil flow. d. Check the hydraulic oil level in
reservoir and check flow from
the tandem brake valve.
e. Air in brake lines. e. Bleed the brakes.
f. Brake pads/linings are
grease-soaked.
f. Replace pads/linings.
g. Engine not running. g. Start engine. Due to the
operation, the engine must be
running to provide full brake
power.
h. Brake relief valve stuck open. h. Replace the relief valve.
i. Dual accumulator charge
valve not charging
i. Check valve operation and
repair or replace valve.
j. Accumulators not pre-
charged.
j. Check accumulator pre-
charge.
2. Hard brake pedal with engine
running.
a. Pedal travel being interfered
with.
a. Check all pedal linkage and
ensure it is free and adjusted
properly.
3. Brakes lock up. a. Too much hydraulic flow. a. Check the flow from the flow
divider. Too much flow will
cause the brakes to be
applied by the oil trapped in
the power boost chamber.
b. Brake pedal push rod
improperly adjusted, causing
brakes to be always applied.
b. Adjust the push rod linkage so
the brake pedal and push rod
fully return.
4. Uneven braking or pad wear. a. Lining thickness less than 3
mm (0.125 in).
a. Replace the lining.
b. Grease on the pads/linings. b. Replace the pads/linings.
Reference Only

Manitowoc Grove RT540E Specifications

General

Brand	Manitowoc
Model	Grove RT540E
Category	Construction Equipment
Language	English