Grove Published 01-29-2015, Control # 512-01 2-23
TMS700E SERVICE MANUAL HYDRAULIC SYSTEM
Table 2-2
Valve Pressure Setting Table
Procedure for Checking Main Directional
Control Valve Reliefs
NOTE: “When checking the directional control valve relief
settings, start with the engine at idle RPM and
move the controller to it's fully stroked position.
Then slowly accelerate the engine to the specified
RPM. Read gauge and make adjustment to
specified setting.
1. Remove cap and install pressure gauge on the main
directional control valve inlet gauge port. (See
Figure 2-8.)
2. Completely extend the lift cylinder (or cap hose from port
A to the lift cylinder), and attempt to lift up with the
engine running at full rpm. Adjust the load sense relief to
276 ± 4 bar (4000 ± 50 psi).
3. Remove pressure gauge and reinstall plug.
4. Remove cap and install pressure gauge on the main
directional control valve load sense relief test port. (See
Figure 2-8.)
5. Disconnect and cap the hose running from the main
directional control valve to the hoist(s) port A of the hoist
motor control valve. (See Figure 2-7.) Disconnect the
hoist brake release line at the hoist, cap fitting, and plug
hose.
VALVE TO BE SET
PRESSURE
SETTING
Bar (PSI)
TOLERANCE
Bar (PSI)
ADJUSTMENT LOCATION
Load Sense Relief* 276 (4000) ±4 (50) Main Control Valve Inlet Gauge Port
Lift Down Relief 138 (2000) +48/-0 (+700/-0)
See step #10 - Procedure For
Checking Main Directional Control
Valve Relief
Tele Retract Relief 241 (3500) ±4 (50) Main Control Valve Tele Retract Port
Tele Extend Relief 186 (2700) ±4 (50) Main Control Valve Tele Extend Port
Hoist Raise 241 (3500) ±4 (50) Main Control Valve Hoist Raise Port
Hoist Lower 241 (3500) ±4 (50) Main Control Valve Hoist Lower Port
Pilot Pressure Supply
22 to 31 (325 to
450)
See Range Main Control Valve Inlet
Swing Brake Pilot Supply 17 (250) +4/-0 (+50/-0) Pressure Reducing Valve
Front Steer Relief 15 (2175) ±4 (50) Steering Pump
Swing Relief 152 (2200) ±4 (50) Swing Control Valve
Counterweight Relief 121 (1750) ±4 (50) Counterweight Control Valve
Outrigger Relief 228 (3300) ±4 (50) Outrigger Valve Inlet
Air Conditioning Relief 104 (1500) ±4 (50) Air Conditioning Flow Divider
Front Jack Relief 14 (200) +4/-0 (+50/-0) Front Jack Relief Valve
*This setting is for Boom Lift “UP” circuit.
6152a
Disconnect Hoist Brake Release Line Here
FIGURE 2-7
Reference Only
To Next Page
Loading...
Need help?
General
