Doosan Power Train D50S-5 Specifications Systems Operation Testing & Adjusting Disassembly & Assembly page 32

Setting Procedure
During setting, the parking brake must be released.
The cable should not be tensioned.
1. Jack up the vehicle
2. Release the brake cable
3. Remove the brake drum
4. Carefully raise the adjusting lever using a screw
driver or similar tool through the opening in the
brake plate to permit the adjusting wheel to turn
freely.
5. Adjust the brake diameter to meet "diameter = Ø
313 +0.2 mm" by turning the adjusting wheel.
+0
Remark:
During this setting work, take care to ensure an
even distance "b" of the adjusting screws (1) to the
relevant adjusting wheel (2).
Remark:
Precise adjustment of the relevant brake diameter is
of decisive importance for the function of the
automatic adjuster. An insufficiently high setting
could result in damage to the adjuster.
6. Adjust the brake cables in such a way that the
relevant brake diameter is not altered.
Remark:
The brake cables may not be pretensioned, as
otherwise it is not possible to guarantee perfect
function of the adjuster.
7. Mount the brake drum
8. Release hexagonal for fastening the automatic
adjuster.
9. Actuate the brake several times to centre the brake
shoes/ the adjuster in the brake drum.
10. Afterwards tighten hexagonal screw to a torque of
120±20 N•m (88.6±14.7 lb•ft)
11. Tighten the hands brake lever. The wheels should
be equally difficult to turn in this setting.
Power Train
Correction of wheels which are not equally
difficult to turn may only be carried out at the
brake cables and not at the automatic adjuster.
12. Lower the vehicle
13. Carry out appr. 10 braking processes (not
emergency braking) with a starting speed of
around 10kph in forward/reverse travel,
observing the braking characteristics of the
vehicle. The automatic adjuster is then ideally
set.
This setting procedure must be carried out always at
all the brakes of the vehicle.
After new adjustment of brake diameter, it will
take times until the lining-to-drum clearance is
made small enough to stop the movement of the
automatic adjuster. So, Please keep enough
braking distance to avoid accident.
31
CAUTION
WARNING
Testing and Adjusting