Mast/Lift system 7000
Hydraulic telescopic forks
Publication No. Date Valid from serial number T-code
261828-040 2008-08-21 6051502 815, 816
© BT Repair Manual RRE140/160/180/200/250 15 – 43
15.9.5 Assembling telescopic forks
1. Once the pistons are fully attached to the piston rod, they must be
secured with Loctite. For forks with a separate flow divider, use
Loctite 542. For forks with integrated flow dividers, use Loctite 270.
2. Hold the piston rod (together with the piston and cylinder head) in
line with the cylinders and carefully tap them in.
3. Apply copper paste to the cylinder head thread.
4. Replace the cylinder head using the cylinder head spanner.
5. Once all piston rods are in, tighten the fixing screw again.
6. Now tighten the couplings (secure with Loctite 542).
7. Run the forks out to approximately 150 mm.
8. The outer forks can now be installed. Make sure that the piston rod
holders end up immediately under the holes in the outer fork.
9. Place a screwdriver or a screw in one of the holes and hammer in
the attachment bushings for the spirals with a heavy hammer. Re
-
move the screwdriver or screw and hammer in the other attach-
ment bushings for the spirals.
10. For forks with integrated flow dividers, the truck must be started
and the forks held retracted for approx. one minute using the lever,
so that air is vented from the system, which then fills with oil. For
forks with separate flow dividers, the forks must be extended and
retracted several times.
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