UNDERCARRIAGE
RT770E
8-22
Published 11/26/2014, Control # 447-05
Caliper
1.
Position the caliper housing on the mounting bracket. If
shims where used, place them as marker during
removal.
2.
Secure the caliper housing with the bolts and tighten
them to 678 Nm to 813 Nm (500 lb-ft to 600 lb-ft).
3.
Install the linings. Refer to
4.
Ensure the housing is installed correctly on the mounting
bracket. The disc must be within ±1.5 mm (±0.06 in) of
being centered between the lining end plates.
a.
To increase outboard clearance and decrease
inboard clearance, install a shim either between the
housing and mounting bracket or between the hub
and disc.
b.
The shims must be steel, ground flat, and parallel
and must cover the entire mounting surface of the
hub or housing. The linings must move freely in the
housing and between the end plates. Refer to
Figure 8-27.
5.
Connect the hydraulic brake line to the inlet fitting.
6.
Bleed the brake system.
7.
Apply and release the brakes three times to ensure the
caliper operates correctly. Check for fluid leaks. Ensure
the linings move freely.
PARKING BRAKE ACTUATOR
Description
The spring-applied, hydraulically-released parking brake
actuator is located on the front axle and is used to apply and
release the parking brake.
Maintenance
Removal
1.
Chock the wheels to prevent crane movement.
2.
Start the engine, ensure the transmission is in neutral,
and position the Park Brake Switch to OFF. This will
pressurize the brake actuator to release the tension on
the brake linkage. Engine must remain running. Air
pressure of 1862 kPa (270 psi) may be used to
pressurize the actuator.
3.
Remove the capscrews holding actuator to the brake
caliper, and slide the actuator off the actuator rod.
4.
Position the Park Brake Switch to ON and shut down the
engine.
5.
Disconnect the hydraulic line from the brake actuator,
then cap or plug all openings.
Installation
1.
Connect the hydraulic line to the brake actuator.
2.
Start the engine, ensure the transmission is in neutral,
and position the Park Brake Switch to OFF. This will
pressurize brake the brake actuator to release the
tension on the brake linkage. Engine must remain
running. Air pressure of 1862 kPa (270 psi) may be used
to pressurize the actuator.
3.
Slide the actuator over the actuator rod and install the
capscrews to attach the actuator to the caliper.
4.
Position the Park Brake Switch to ON and shut down the
engine.
Adjustment
1.
Chock the wheels to prevent crane movement.
2.
Start the engine, ensure the transmission is in neutral,
and position the Park Brake Switch to OFF. This will
pressurize the brake actuator to release the tension on
the brake linkage. Air pressure of 1862 kPa (270 psi)
may be used to pressurize the actuator. Screw the
caging nut up under the actuator chamber.
3.
Install the rod ball joint until the ball joint will just connect
to the brake linkage with the brake lever in a horizontal
position.
4.
Lock the rod ball joint with the jam nut and back off the
caging nut.
5.
Position the Park Brake Switch to ON and shut down the
engine.
Disc Centered
Between Linings
FIGURE 8-27
Содержание Grove RT770E
Страница 3: ...Service Maintenance Manual Grove RT770E ...
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Страница 40: ...INTRODUCTION RT770E SERVICE MANUAL 1 26 Published 11 26 2014 Control 447 05 THIS PAGE BLANK ...
Страница 124: ...HYDRAULIC SYSTEM RT770E 2 84 Published 11 26 2014 Control 447 05 THIS PAGE BLANK ...
Страница 126: ...ELECTRICAL SYSTEM RT770E SERVICE MANUAL 3 2 Published 11 26 2014 Control 447 05 FIGURE 3 1 7983 ...
Страница 149: ...4 5 Published 11 26 2014 Control 447 05 RT770E SERVICE MANUAL BOOM 4 GROVE FIGURE 4 2 ...
Страница 150: ...BOOM RT770E SERVICE MANUAL 4 6 Published 11 26 2014 Control 447 05 FIGURE 4 2 continued ...
Страница 151: ...4 7 Published 11 26 2014 Control 447 05 RT770E SERVICE MANUAL BOOM 4 GROVE FIGURE 4 2 continued ...
Страница 152: ...BOOM RT770E SERVICE MANUAL 4 8 Published 11 26 2014 Control 447 05 FIGURE 4 2 continued ...
Страница 153: ...4 9 Published 11 26 2014 Control 447 05 RT770E SERVICE MANUAL BOOM 4 GROVE FIGURE 4 2 continued ...
Страница 154: ...BOOM RT770E SERVICE MANUAL 4 10 Published 11 26 2014 Control 447 05 FIGURE 4 2 continued ...
Страница 224: ...5 24 Published 11 26 2014 Control 447 05 HOIST AND COUNTERWEIGHT RT770E This Page Blank ...
Страница 276: ...POWER TRAIN RT770E 7 30 Published 11 26 2014 Control 447 05 THIS PAGE BLANK ...
Страница 300: ...UNDERCARRIAGE RT770E 8 24 Published 11 26 2014 Control 447 05 FIGURE 8 28 ...
Страница 321: ...9 9 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 7114 17 1 4 2 7114 20 7114 10 3 FIGURE 9 1 ...
Страница 323: ...9 11 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 7114 17 11 12 7114 9 FIGURE 9 2 8130 1 ...
Страница 329: ...9 17 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 42 7114 25 7114 24 41a 7649 21 FIGURE 9 5 40 8130 2 ...
Страница 331: ...9 19 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE FIGURE 9 6 8130 1 51 52 50 ...
Страница 336: ...LUBRICATION RT770E 9 24 Published 11 26 2014 Control 447 05 72 73 74 73 74 72 73 74 73 74 FIGURE 9 8 8133 ...
Страница 343: ...9 31 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 84 7114 30 FIGURE 9 11 85 7115 33 8130 2 ...
Страница 347: ...9 35 RT770E LUBRICATION 9 Published 11 26 2014 Control 447 05 GROVE 7649 22 101 100 FIGURE 9 13 8130 2 ...
Страница 348: ...LUBRICATION RT770E 9 36 Published 11 26 2014 Control 447 05 FIGURE 9 14 102 8130 2 ...
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