Manitowoc Grove RT540E Service Maintenance Manual

HYDRAULIC SYSTEM RT540E SERVICE MANUAL
2-14 Published 4-20-2015, Control # 502-01
HYDRAULIC PUMPS
Description
Pump No. 1 is mounted off drive pads of the torque
converter. Pump No. 2 is mounted on the left front side of the
engine (Figure 2-6).
Pump No. 1
Pump No. 1 is a variable displacement axial piston pump
with a maximum displacement of 112 cm
3
/rev. (6.83 in
3
/rev).
The pump differential or standby pressure is 2413 kPa/24
bar (350 psi). Pump No. 1 supplies oil to the integrated
outrigger/rear steer valve, boom lift, telescope, hoist, brakes
and pilot functions.
Pump No. 2
Pump No. 2 is a single positive displacement gear pump with
a displacement of 39 cm
3
/rev. (2.40 in
3
/rev) delivering a
theoretic flow of 84 lpm (21.9 gpm). Pump No. 2 supplies oil
to the front steer and swing circuits.
Pump No. 3
Pump No. 3 is a single positive displacement gear pump with
a displacement of 19 cm
3
/rev. (1.16 in
3
/rev) delivering a
theoretic flow of 57.2 lpm (10.6 gpm). Pump No. 3 supplies
oil to the transmission oil cooler fan motor.
Maintenance
No. 1 Pump Removal
1. For ease of removal, gain access to the pump by
removing the engine hood. The pump is bolted to the
engine’s torque converter.
2. Tag and disconnect the supply line from the pump. Cap
or plug the line and port.
3. Tag and disconnect the pump distribution lines from the
pump. Cap or plug the lines and ports.
NOTE: Charge pump and two studs must be removed for
wrench access to piston pump mounting bolts.
4. Remove the capscrews and washers attaching the
pump to the drive pad on the torque converter. Remove
the pump.
5. Clean the gasket material from the drive pad on the
torque converter.
6. Cover the drive pad’s opening to prevent dirt from
entering.
No. 1 Pump Installation
1. Install new gasket material to the pump mounting flange.
2. Install pump on torque converter drive pad with
capscrews and washers. Make sure the splines mesh
properly. Torque capscrews 292 to 317.2 Nm (216 to 234
foot-pounds).
3. Replace the charge pump and studs.
4. Connect the distribution and supply lines as tagged
during removal.
No. 2 Pump Removal
1. For ease of removal, gain access to the pump by
removing the engine hood.
2. Tag and disconnect the supply line from the pump. Cap
or plug the line and port.
3. Tag and disconnect the pump distribution line(s) from
the pump. Cap or plug the line(s) and port.
4. Remove the capscrews and washers attaching the No. 2
pump to the drive pad on the torque converter. Remove
the pump.
5. Remove the gasket material from the drive pad on the
torque converter.
6. Cover the drive pad’s opening to prevent dirt from
entering.
CAUTION
Absolute cleanliness is essential when working on the
hydraulic pumps. Always work in a clean area. The
presence of dirt and foreign materials in the system can
result in serious damage or inadequate operation.
CAUTION
When removing the pump, keep the pump as level as
possible to avoid damaging the input spline.
CAUTION
Absolute cleanliness is essential when working on the
hydraulic pumps. Always work in a clean area. The
presence of dirt and foreign materials in the system can
result in serious damage or inadequate operation.
CAUTION
When removing the pump, keep the pump as level as
possible to avoid damaging the input spline.
Reference Only

Manitowoc Grove RT540E Specifications

General

Brand	Manitowoc
Model	Grove RT540E
Category	Construction Equipment
Language	English