Manitowoc Grove RT9130E-2 Service And Maintenance Manual

2-24 Published 11-22-2016, Control # 345-12
HYDRAULIC SYSTEM RT9130E-2 SERVICE MANUAL
Procedure B - For Checking Pressure
Reducing/Sequence Valve Setting
Procedure for Checking Sequence Valve Setting (see
Figure 2-8).
1. Remove cap and install pressure gauge on the G2 test
port (5).
2. With the engine running at idle, adjust the sequence
valve cartridge to 1200 psi +50/-0 (8.3 MPa +0.4/-0). If
adjustment is required, use a shim with an outside
diameter of 0.56 in, an inside diameter of 0.375 in, and a
thickness of 0.06 in to increase pressure about 50 PSI.
3. Remove pressure gauge from the G2 port and reinstall
cap.
Procedure for Checking Controller Supply Pressure
Reducing Valve Setting
1. Remove cap and install pressure gauge on the controller
supply G1 test port (Figure 2-8).
2. With the engine running at full RPM, adjust the controller
supply pressure reducing valve cartridge (3) to 400 psi
±50 (2.8 MPa ±0.4).
3. Remove pressure gauge from the test port and reinstall
cap.
Procedure C - For Checking Swing Brake
Supply Pressure
1. Remove cap and install pressure gauge on swing brake
supply valve test port, G3 (Figure 2-8).
2. With the engine running at idle, adjust the swing brake
pressure reducing valve cartridge to 250 psi +50/-0
(1.7 MPa +0.4/-0).
3. Remove pressure gauge from the test port and reinstall
cap.
Procedure D - For Checking Service Brake
and Air Conditioning Circuit Relief Valve
Pressure
1. Disconnect pressure hose at the Primary Discharge port
(Figure 2-9) and attach a pressure gauge.
2. Run the engine at idle (900 rpm), for only 5-10 seconds
since the flow will be “Hot Looped”. Check the pressure.
Adjust the service brake and air conditioning relief valve
in the pump mounted on the back side of the charge
pump (Figure 2-9) to 3000 psi
±50 (20.7 MPa ±0.4). If
this step needs to be repeated, make sure the pump is
not hot to the touch. If it is, let it cool before proceeding.
3. Remove pressure gauge and reconnect the pressure
line.
Item Description
1 Sequence Valve Cartridge
2 Swing Brake Supply Pressure Adjustment
3 Control Supply Adjustment
Pressure Reducing Sequence Valve Assembly
FIGURE 2-8
1
2
3
4
5
6
4 Swing Brake Supply Test Port, G3
5 Hose Reel Brake and Motor Test Port, G2
6 Controller Supply Test Port, G1
Item Description
Relief Valve
Suction Port
FIGURE 2-9
Service Brake and Air Conditioning Pump (Rear View)
Primary Discharge
Port

Manitowoc Grove RT9130E-2 Specifications

General

Brand	Manitowoc
Model	Grove RT9130E-2
Category	Construction Equipment
Language	English