DAF CF65, CF75, CF85 Series . Manual — part 957
©
200423
4-7
Draining and filling
STEERING GEAR, GENERAL
ΧΦ65/75/85 series
7
2
15. Run the engine at idling speed for another
2 minutes. Do not touch the steering wheel
during these 2 minutes.
16. Check the steering oil level when the engine
is not running.
17. Clean the dipstick and its immediate
surroundings so that no dirt can get into the
reservoir.
18. Check the fluid level in the reservoir using
the dipstick.
19. The fluid level should be between the marks
when the steering oil is "cold".
Note:
When the steering oil is at operating temperature,
the level may be above the top mark on the
dipstick.
20. Put the filler cap on the reservoir again and
lower the axle(s).
21. Inspect the line connections for leaks.
22. Attach the propeller shaft.
23. Make a test drive. Now check the steering oil
level and check the line connections for
leaks.
S7 00 676
STEERING GEAR, GENERAL
4-8
©
200423
Draining and filling
2
ΧΦ65/75/85 series
7
4.3 DRAINING AND FILLING/BLEEDING THE STEERING SYSTEM WITH EMAS-
CONTROLLED TRAILING AXLE
The steering oil should be drained in case of:
-
damage to the main steering pump or
emergency steering pump
-
contamination of the steering oil
-
water in the steering oil
-
serious foaming of the steering oil due to
drawing in of air.
Draining the steering system with EMAS-
controlled trailing axle
1.
Clean the line connections of the steering
box, reservoir and, if present, the slave
cylinder.
2.
Jack up the front axle.
3.
Place receptacles under the steering box.
Remove the return line from the steering
box.
4.
Remove the filter from the reservoir.
5.
With the engine at a standstill turn the
steering wheel slowly from one end stop to
the other until the oil stops coming out of the
line connection.
6.
Reinstall the line which was disconnected.
7.
Drain the EMAS system.
8.
Fit a new filter into the reservoir.
9.
Replace the pressure filter in the fluid flow
control valve.
©
200423
4-9
Draining and filling
STEERING GEAR, GENERAL
ΧΦ65/75/85 series
7
2
Drained steering oil must not be re-
used. Store this hydraulic oil
separately from the other drained
oils and have the oil collected by a
waste removal company authorised
to do so.
Make sure that during filling and
bleeding the reservoir always
remains filled with oil so as to
prevent the pump from drawing in air
which would cause foaming in the
oil.
Air in the hydraulic system may
cause serious damage to the
steering pump. Air in the hydraulic
system could cause occasional
"jamming" of the steering gear. If the
hydraulic system contains air, a
squealing sound will be heard when
the steering wheel is turned. Air in
the fluid flow control valve is
continually audible.
In the case of serious foaming, the
steering oil should be completely
drained. Trace and repair the leak,
after which the system can be filled
again and bled.
Filling/bleeding the steering system with
EMAS-controlled trailing axle
1.
Remove the fuses of the EMAS system.
2.
The steering gear bleeds automatically. This
bleeding system will only function if there is
circulation pressure in the system.
3.
Fill the reservoir to the brim with clean oil
which complies with the specifications. Wait
a little while and then fill the reservoir to the
brim again.
4.
Crank the engine for approx. 2 seconds
using the starter motor. Make sure that the
reservoir remains filled. Stop cranking
immediately if the oil level threatens to
become too low. Top up the steering oil.
5.
Crank the engine for approx. 10 seconds
using the starter motor. Make sure that the
reservoir remains filled. Stop cranking
immediately if the oil level threatens to
become too low.
6.
Top up the steering oil to the upper mark on
the dipstick.
}
STEERING GEAR, GENERAL
4-10
©
200423
Draining and filling
2
ΧΦ65/75/85 series
7
7.
Repeat the actions described in points 4 and
5 until the steering oil level no longer
decreases.
8.
Jack up the front axle until the wheels are
clear of the floor.
Note:
If the wheel deflection limiting valves are
incorrectly set, e.g. because the maximum
wheel deflection is increased, these valves
should be set correct first.
9.
Start the engine and, with the engine
running, slowly turn the steering wheel
(approx. a
∂ turn of the steering wheel per
second) to the left and to the right, until the
maximum wheel deflection is reached.
Continue this until the oil level no longer
decreases.
Watch the steering oil level, especially if the
vehicle is equipped with a slave cylinder.
10. Run the engine at idling speed for another 2
minutes. Do not touch the steering wheel
during these 2 minutes.
11. Check the steering oil level when the engine
is not running.
12. Clean the dipstick and its immediate
surroundings so that no dirt can get into the
reservoir.
13. Check the fluid level in the reservoir using
the dipstick.
14. The fluid level should be between the marks
when the steering oil is "cold".
Note:
When the steering oil is at operating temperature,
the level may be above the top mark on the
dipstick.
15. Fit the fuses to the EMAS system.
16. Fill and bleed the EMAS system as specified.
17. Inspect the line connections for leaks.
18. Make a test drive. Now check the steering oil
level and check the line connections for
leaks.
S7 00 676
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст