DAF CF65, CF75, CF85 Series . Manual — part 149

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5-5

Disassembly and assembly

CAB TILTING MECHANISM

ΧΦ65/75/85 series

1

6

Assembling lifting cylinder

Note:
The components marked in the figure form part of
the reconditioning kit (13).

1.

Fit the sealing ring (9) in the new dirt scraper
housing (11) and fit the "O"-ring (10) into the
outer groove, see situation A.

2.

Fit the sealing ring (8) into the new brass
upper bearing (7) and fit the "O"-ring (6) into
the outer groove, see situation B.

3.

Slide the dirt scraper housing (11) over the
piston rod.

4.

Slide the circlip (12) over the piston rod.

5.

Slide the new brass upper bearing (B) over
the piston rod, as shown.

6.

Slide the stop ring (5) over the piston rod,
ensuring that the tapered side fits into the
upper bearing.

7.

Fit the circlip (4), possibly using an axle
spring clip pliers (outer circlip pliers), into the
piston rod groove.

8.

Slide the existing piston (3) over the piston
rod until it touches the stop.

9.

Fit the circlip (1) onto the piston rod, using an
axle spring clip pliers (outer circlip pliers).

10. Position the cylinder upright in a vice. Press

the piston rod into the cylinder. Tap the brass
upper bearing approx. 5 mm into the cylinder
(past the circlip groove) with a punch.

11. Fit the circlip (12) into the cylinder. Pull the

piston out fully to check whether the circlip is
properly seated in the groove. This also puts
the upper bearing in its final position.

12. Turn the cylinder upside down and press the

piston into the cylinder using the cab tilting
pump. Add another twenty pump strokes
when the piston has been fully pressed into
the cylinder to bleed the cylinder.

13. Press the piston out of the cylinder and

pressurise the cylinder. Inspect the latter for
leakage.

1

2

3

4

5

6

7

8

9

10

11

12

13

A

A

C

B

K1 01 661

CAB TILTING MECHANISM

5-6

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200346

Disassembly and assembly

6

ΧΦ65/75/85 series

1

14. Tap the dirt scraper housing (A) evenly into

the cylinder using a plastic or copper
hammer.

15. Fit the dust cover.

16. Attach the lifting cylinder underneath the cab

and check its operation.

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6-1

Draining and filling

CAB TILTING MECHANISM

ΧΦ65/75/85 series

1

6

6. DRAINING AND FILLING

6.1 FILLING AND BLEEDING, TILTING MECHANISM

Note:
-

Check whether the lifting components have
been fitted correctly and whether the
connected piping is secure enough.

-

Do not add oil to the pump reservoir when
the cab is tilted. Add oil to the reservoir only
when the cab has been completely tilted
back.

-

Check the cab tilting pump, the lifting
cylinder, pipes and connections for any
leakage.

Filling tilting mechanism
1.

Clean the area surrounding the filler plug.
Remove the filler plug.

2.

Put the pump plunger in bottom position by
moving the pump actuating rod fully down.

3.

Top up the reservoir with the specified oil,
see specification manual "Fluids and
lubricants", to the top of the pump plunger.

Note:
The cab must be tilted completely back into
place.

Bleeding tilting mechanism
1.

Place a tray beneath the pump to collect the
oil.

2.

Start with approx. 30 full pump strokes while
leaving the cab tilting pump in the reverse
tilting position. If necessary, top up the
reservoir with oil.

3.

Tilt the cab fully forward (cab tilting pump in
the tilting position). Continue pumping and
keep the system pressurised. Check all the
connections for leaks.

4.

Tilt the cab back. If necessary, top up the
reservoir with oil.

Note:
If the lifting cylinder has been overhauled or
renewed, the cab must be tilted twice to
obtain full bleeding.

5.

Fit the filler plug.

CAB TILTING MECHANISM

6-2

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Draining and filling

6

ΧΦ65/75/85 series

1

Refilling tilting mechanism
1.

Carefully loosen the filler plug 3 to 4 turns
and wait until the overpressure, if any, has
left the reservoir.

2.

Remove the filler plug.

3.

Turn the cab tilting pump into the tilting
position and start pumping until this is clearly
getting heavier.

4.

Put the pump plunger in bottom position by
moving the pump actuating rod fully down.

5.

Top up the reservoir with the specified oil,
see specification manual "Fluids and
lubricants", to the top of the pump plunger.

6.

Fit the filler plug and set the cab tilting pump
into the reverse tilting position.