Manitowoc Grove GRT9165 Service Manual

2-61
GROVE
GRT9165 SERVICE MANUAL HYDRAULIC SYSTEM
2
Published 10-01-2020 Control # 699-00
onto test nipple at GP3 port (10, Figure 2-27) of the
Accessory manifold.
2. Start engine and idle, adjust the swing brake release
pressure reducing valve (2, Figure 2-27) “in” to increase
or “out” to decrease so that the gauge pressure reads
the value cited in Table 2-3.
3. Stop engine. Remove the diagnostic coupler.
Checking the Swing Work Pressure
1. With the engine off, install a pressure check diagnostic
coupler (such as Parker PD240) with gauge onto the
diagnostic nipple at GP5 port (1, Figure 2-30) of the
superstructure swing directional valve.
2. Start the engine and throttle to full RPM. Engage the
swing house lock. Gradually engage the swing right
function until full controller stroke is reached and hold.
The pressure gauge should read the value cited in
Table 2-3. If the reading does not match the values in
Table 2-3, adjust the maximum software current output
(Imax) value in the joystick EEPROMs can be adjusted.
Raise the Imax to raise the pressure or reducing the
Imax to decrease pressure to adjust the lmax value in
the joystick EEPROM. If adjusting the Imax does not
work, contact Manitowoc Crane Care.
3. Repeat step 2 for swing left function.
4. Stop engine. Remove the diagnostic coupler.
Checking/Setting the Front Steer Pressure
1. With the engine off, install pressure check diagnostic
quick disconnect (such as Parker PD240) with gauge
onto test nipple at GP6 port (5, Figure 2-27) of the
accessory manifold.
2. Start engine and throttle up to full RPM. Fully turn the
steering wheel left or right against the axle stop and
hold. Adjust the steering load sense relief valve
(Figure 2-27) “in” to increase or “out” to decrease so that
the gauge pressure reads the value cited in Table 2-3.
3. Stop the engine. Remove diagnostic couplers.
Check the Service Brake Accumulator
Charging Valve Pressure
Use the following procedure to check the service break
accumulator charging valve pressure.
FIGURE 2-30
1
Swing Valve
1GP5 Port
10140

Manitowoc Grove GRT9165 Specifications

General

Brand	Manitowoc
Model	Grove GRT9165
Category	Construction Equipment
Language	English