National Crane 600H, Service Manual

Page: 157 / 232

NATIONAL CRANE
08-19-2022 Control # 092-13
7-7
600H SERVICE MANUAL OUTRIGGERS
7
Jack Cylinder
1. Position the outrigger so that there is enough clearance
to remove the jack cylinder.
2. Use the access hole in the side of the outrigger beam to
gain access to the check valve block.
3. Tag and remove the hydraulic lines from the check valve
block on the jack cylinder.
4. Remove the check valve block from the jack cylinder.
5. Remove the bolts that secure the jack cylinder to the top
of the jack tube.
6. Slide the jack cylinder out of the jack tube.
Extension Cylinder
1. Use the access hole in the side of the outrigger beam to
gain access to anchor bracket.
2. Remove the bolt on the rod end of the extension
cylinder.
3. Slide the cylinder out the outrigger beam.
INSTALLATION
Extension Cylinder
1. Slide the extension cylinder into the outrigger beam.
2. Use the access hole in the side of the outrigger beam to
gain access to the anchor bracket.
3. Insert the rod end of the extension cylinder through the
hole in the anchor bracket in the outrigger beam.
4. Secure rod end with the nut.
Jack Cylinder
1. Position the outrigger so that there is enough clearance
to install the jack cylinder.
2. Apply grease (EP-MPG) to the OD of the jack cylinder.
3. Slide the jack cylinder into the jack tube.
4. Install the bolts that secure the jack cylinder to the top of
the jack tube.
5. Use the access hole in the side of the outrigger beam to
gain access to the cylinder valve ports.
6. Bolt the check valve block to the jack cylinder.
7. Install the hydraulic lines as per removal tags.
Outrigger Beam
1. Apply grease (EP-MPG) to the top and bottom of the
outrigger beam.
NOTE: To prevent nicks and gouges to the bottom of the
outrigger beam, do not attach chains to the
outrigger beam.
2. With a lifting device, slide the outrigger beam into the
outrigger box.
3. Install the bottom wear pads in the outrigger box.
4. Bolt the barrel end of the extension cylinder to the
outrigger box.
5. Install the end plate on the outrigger box.
6. Install the hydraulic lines connected to the jack and
extension cylinders as per removal tags.
REAR OUTRIGGERS (RSOD)
The RSOD (rear jack out and down) (Figure 7-8) is located
behind the rear wheels and proved added stability for the
crane. The RSOD can be used in the fully retracted, at the
mid-extended position, or the fully extended position.
The RSOD assembly consists of the following:
• outrigger beams
• jacks
• required hoses and mounting hardware
REMOVAL
RSOD Beam
1. Check that the jack is fully retracted.
2. Extend the RSOD beam slightly so that a lifting strap can
be attached to the outrigger beam.
RSOD
FIGURE 7-8
REFERENCE ONLY