Meritor TM Series Service Manual page 18

3 Inspection & Maintenance
Inspect Brake Linings
Do not disturb the brake lining surfaces if these show normal
working appearance. Do not contaminate the surface of the linings
with grease etc. Clean any compressed lining debris from the rivet
holes. The brake lining surface may be carefully cleaned by hand
using suitable abrasive paper if contaminated by dirt etc.
DO NOT USE ANY FORM OF POWER TOOL.
CAUTION
: Ensure any discarded friction product,
or cloth contaminated with brake dust, is disposed
of in accordance with local environmental regulations.
Lubricate Brake Chamber Clevis Pin Assembly
Lubricate the clevis pin assembly from both sides with oil, and
make sure the brake can be operated easily by pulling the slack
adjuster by hand
Push Rod Setting Lengths for Mannual and Auto
Slack Adjusters (Haldex & Meritor HVS)
To ensure the correct installed slack adjuster positions, it is
necessary to identify the type of air chamber bracket installed.
Follow the published procedure for auto slack installation and
setting provided in the S Cam Trailer Drumbrake Service Manual
MM 1000.
Disc Brake Axles
The TM series axle is available with either DX 195/225 or ELSA 2
air disc brakes. For further information refer to the appropriate
Meritor HVS Service Manual detailed below;
DX 195/225 MM 1147
ELSA 2 MM 1130
CAUTION:
You must always renew the brake pads
on both wheels of an axle. Only use the brake pads
that have been approved by the vehicle manufacturer. Brake
pads must be replaced when the lining thickness has worn
to 3mm minimum.
Rotor Inspection
Rotors should be examined in situ, whenever the brakes are
serviced or new pads are fitted - or immediately if erratic braking
performance is noted. The rotor condition should be visually
checked for the following surface conditions, and replaced with a
new rotor as described in Section 6 Rotor Replacement if
suspect or defective.
CAUTION
: You must always renew the rotor on
both wheels of an axle. Only use the rotors that
have been approved by the vehicle manufacturer.
Cracks (Fig 3.4)
Cracks that extend through to the vent of a ventilated rotor or 25%
through the thickness at the outer edge of a solid rotor: Replace
the rotor.
Fig. 3.4
Meritor HVS TM Series Axle
18