BPW D-51674 - Page 18

A
A
B
D
right wheel side
left wheel side
loose
loose
loose
fixed
fixed
fixed
C
D
C
left and right
wheel side
1
2
Readjustment of the brake system
Wheel brake
 every 2,000  3,000 kilometers of travel 
Jack up the trailer. Release the towing equipment
and handbrake lever and brake linkage (free from
tension).
Lock the reversing cam of the wheel brake from
the outside by means of a locking pin (item A,
pin Ø 4 mm) through the backplate.
Using a screwdriver (item b) rotate adjuster wheel
(item c) or with an 8 mm spanner turn hex.
adjuster until the wheel locks in the
forward direction of travel.
Activate the parking brake several times to
centralise the brake shoes.
V
ersion1: Turn hex adjuster anticlockwise until
wheel is running free in forward direction of travel
(approx. 1 full turn).
V
ersion 2: Rotate adjuster wheel approx.
35 teeth until wheel is running free in forward
direction of travel.
With parking brake activated check equaliser bar
is at right angles to brake rod. It may be neces
sary to readjust the brakes or adjust length of
brake cables (screw clevis in/out as required).
To test, partially apply parking brake and check
for similar brake torque on all wheels
(in forward direction of travel).
Remove 4 mm locking pin from reversing cam.
Brake Linkage
With the parking brake off and all brakes
correctly set, readjust brake rod length with
turnbuckle (1) or equaliser (2) until there is
neither free play or tension.
Tighten all locknuts of the brake linkage.
Note: Excessive travel on the handbrake lever
or failure of the handbrake to operate properly
may be due to brake wear or a poorly
adjusted linkage.
13
Version 1 Version 2
Version 1 Version 2
x
Maintenance work
1
CChheecckk wwhheeeell bboollttss ffoorr ffiirrmm sseeaattiinngg
– after the first run under load conditions,
likewise after each wheel change –
Tighten wheel bolts crosswise using a
torque wrench to the tightening torque in
compliance with the table.
Tightening torques of wheel bolts
12
BPW Rubber suspension axles / Torsion bar axles
Spanner
widths (mm)
Thread
Tightening
torques
17 (19) M 12x1.5 80  100 Nm
19 M 14x1.5 110  120 Nm
24 M 18x1.5 270  280 Nm
2
CChheecckk bbrraakkee ppllaayy,, iiff nneecceessssaarryy
rree--aaddjjuusstt
– after the first run under load conditions,
then every 2,000  3,000 kilometres –
The check is carried out visually on the
stroke (x) of the overrun hitch.
As soon as this reaches more than 50 mm
when the brakes are applied, adjust the
wheel brakes.
3
CChheecckk bbrraakkee lliinniinngg wweeaarr
– every 5,000 kilometres –
The brake lining wear is dependent on the
style of driving. Careful driving saves brake
linings and tyres. As soon as a brake lining
has been worn to a thickness of 2 mm, the
brake shoe must be replaced. Stiff or
stretched brake springs, the coils of which
are no longer closed tightly together, must
also be replaced.
Replacement brake shoe assemblies
must be replaced as a set for the
individual axles.
For visual check remove the plug (arrow)
from the brake plate.
English