National Crane
Published 5-27-2018 Control # 039-06
10-3
800D
CRANE INSTALLATION
8. Find a location for and install hydraulic oil reservoir.
Mounting brackets may be bolted to the truck frame.
Before placing reservoir in service, remove cleanout
cover and inspect to ensure proper installation of
diffuser. Connect 1/4 in hoist drain line to coupling in
back side of reservoir and 2-1/2 in suction line from
pump before filling with oil.
9. Install the return line from the crane frame to the filter on
the side of the reservoir. Be careful to avoid damaging
the filter housing when installing the 4 bolt flange
connection. Snug each capscrew, then tighten to proper
torque in a diagonal torquing pattern. Clamp return hose
to filter flange then check for leaks. Engage PTO and run
the pump to circulate the oil.
Important: The weight of suction and return hose
and plumbing must be supported to prevent damage
to the reservoir. Install support brackets and clamp
or tie hoses up to eliminate strain on reservoir
connections. Also ensure that the hydraulic hoses
do not contact the truck drive shaft.
10. Install outriggers on crane frame as shown in illustrated
parts pages. Attach the appropriate hoses to the
outrigger cylinders. Cycle the outriggers to fill with oil
completely and install the latch plate to hold outriggers in
place during travel.
11. Important: Before attempting to assemble the boom and
lift cylinder to the frame, see “Hose Routing” page in
“Controls & Hydraulics” Section and “Pin Bearing
Inspection and Installation” and “Anti-Two-Block System
Installation” pages in this section. Before connecting
hoses, boom must be opposite (180°) the rotation stop
to minimize hose twist.
Pin lift cylinder barrel in position in the turret. Pin boom
pivot to turret. (It will be necessary to use an overhead
hoist for lifting boom and lift cylinder.) The boom,
telescope, and hoist hoses need to be routed through
nylon covers, per the parts pages, prior to routing
through the frame and turret. Connect the 1/2 in R12
hoses to the lift cylinder. Support outer end of boom
securely and use the overhead hoist to position the lift
cylinder with the control valve to pin the cylinder to the
boom ears. Torque pin keeper capscrews to proper
torque. Grease the three pin joints with gun grease and
operate the boom and lift cylinder through several
complete cycles before placing machine in operation.
12. Route the 1/2 inch R12 telescope hoses over the turret
back plate and to the back side of the boom. Connect
the telescope cylinder connections at the back of the
boom.
13. Route the 3/4 inch R12 hoist hoses and the 1/4 in R1
hoist drain hose through the turret then through the
holes in the side of the hoist side plates and connect to
the hoist fittings.
14. If loadline has been installed at factory, skip to Step 21
Unspool approximately 15 ft (8 m) of cable and route the
cable through the boom cable guides from the front of
the boom to the hoist.
15. Install one end of the loadline cable into the hoist drum
using the wedge socket provided. See “Hoist Service
Manual” in the Service and Maintenance Section for
proper placement of the wedge socket with 9/16 in
diameter wire rope.
16. Remove the cable keeper T-handle pin from the sheave
case and lay the cable over the top sheave. Replace the
top cable keeper pin.
17. Unspool the remainder of the cable out from the back of
the truck being sure the cable is straight and without
kinks. Attach downhaul weight, wedge socket, hook and
cable clamp to the end of cable as shown in Loadline
Section. Torque cable clamp (clip) to 95 lb-ft (128.8 Nm).
This torque must be rechecked after initial operation of
the crane. Be sure cable clamp is attached to the free
end of the cable only. If equipped with optional 2/3 part
block, omit downhaul weight and assemble as shown in
Loadline Section. Special care should be taken to reeve
the cable through the wedge socket as shown below.
18. Spool the loadline onto the hoist drum while maintaining
approximately 500 lb (250 kg) of tension on the cable
(attaching a small vehicle to the end of the loadline with
another person lightly riding the vehicle brakes while the
cable is spooling on the drum will accomplish this).
While the first half of the hoist bare drum is filling, it will
be necessary to force the cable to wrap tightly against
the preceding wrap by pounding the cable against the
preceding wrap with a rubber mallet until at least half of
the drum is full. The remaining half of the drum should
wrap tightly because the fleet angle of the cable will tend
to pull the cable to the center of the drum thus wrapping
tightly.
Fo
r
Reference
Only
Содержание National Crane 800D
Страница 1: ...Operator and Service Manual National Crane 800D F o r R e f e r e n c e O n l y ...
Страница 4: ...F o r R e f e r e n c e O n l y ...
Страница 98: ...MAINTENANCE 800D 3 10 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 194: ...SPECIFICATIONS 800D 8 4 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 216: ...INSTALLATION 800D 9 22 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 232: ...CRANE INSTALLATION 800D 10 16 Published 5 27 2018 Control 039 06 THIS PAGE BLANK F o r R e f e r e n c e O n l y ...
Страница 252: ...SCHEMATICS 800D 2 Published 5 27 2018 Control 039 06 F o r R e f e r e n c e O n l y ...
Страница 255: ...F o r R e f e r e n c e O n l y ...
Страница 256: ...F o r R e f e r e n c e O n l y ...