National Crane 600H, Service Manual

Page: 137 / 232

NATIONAL CRANE
08-19-2022 Control # 092-13
5-1
600H SERVICE MANUAL HOIST
5
SECTION 5
HOIST
SECTION CONTENTS
Hoist Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1 Hoist Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-1
HOIST REMOVAL
1. Extend and set the outriggers.
2. Fully retract the boom and place in a horizontal position.
3. Remove hook block or downhaul weight. Shut down
truck engine.
4. Remove and cap hydraulic hoses.
NOTE: Tag hydraulic hoses to avoid confusion during
re-assembly (the inside hose “up” and the outside
is “down”).
5. Remove rope Mesh Guard.
6. Attach suitable lifting device to hoist and take up the
slack.
7. Remove 6 mounting capscrews and washers (3 on each
side).
8. Lift hoist clear of boom and secure to a suitable holder
HOIST INSTALLATION
1. Remove rope Mesh Guard from hoist.
2. Lift hoist with suitable lifting device.
3. Lower hoist onto the alignment ears.
4. Install Mesh Guard.
5. Install 6 capscrews and washers. Torque capscrews,
refer to
Fasteners and Torque Values , page 1-7.
6. Inspect hydraulic hoses and anti chafing sleeve for wear
or damage. Replace as required.
7. Route hoses with anti chafing sleeve installed through
access hole in turret assembly.
8. Install hoist up hydraulic hose to lower inside fitting on
which motor.
9. Install hoist down hydraulic hose to outside fitting on
hoist motor.
Item Component
1 Hoist
2 Boom
3 Capscrew (6 plcs)
4 Case Drain
5 Hoist Down Hose
6 Hoist Up Hose
7 Hoist Alignment Ears
FIGURE 5-1
CAUTION
The combined weight of the hoist and 325 ft. of wire rope
is 660 lbs (300 kg).
REFERENCE ONLY