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8 Servicing and Specifications
Tightening Torque's
Component
M18 Guide Sleeve Screw (long)
M18 Guide Sleeve Screw (short)
Adjuster Stem
Pad Retaining Plate Screw
Air Actuator Retaining Nut :
Bridge Screws
Grease Specification
WARNING
Under no circumstances should another grease be used on
this disc brake other than specified.
Grease
Brake Internals
Castrol
Guide Sleeves
Fuchs
Servicing
Although there is no routine maintenance of the Brake required it
is important the following inspections are carried out at the
periods specified, or those described in the vehicle manufacturers
manual.
Every 3 months or 20,000 Km.
A visual assessment of pad life remaining should be made.
Brake pads should be replaced when the lining thickness has worn
to 2.0 mm. Visually inspect the general condition of the brake
assembly for damage or corrosion. If there is any doubt in the
suitability for further service replace/rectify in accordance with the
vehicle manufacturers recommendations.
NOTE
: Only use the grease supplied with replacement
components/kits or that specified by the vehicle manufacturer.
Under no circumstance should any other type of grease be used.
46
ArvinMeritor Air Disc Brake ELSA 195
Optitemp TT1EP
Unitemp 2
Torque
430 - 450 Nm
430 - 450 Nm
40 Nm Maximum
33 - 40 Nm
Pre Torque 80 - 100 Nm
Final Torque 180 - 210 Nm
200 - 240 Nm
Every 12 months
Remove the road wheels and brake pads as described in the pad
replacement section. Inspect the guide sleeve and tappet excluder
and ensure they are undamaged and securely located. If any of
the dust excluders are detached or damaged the relevant area of
the brake should be dismantled and the components examined
for corrosion or damage. Replace/rectify in accordance with the
vehicle manufacturers recommendations. Check the housing
assembly slides easily on the guide sleeves secured to the carrier.
If the housing does not slide easily on the guide sleeves remove
from the carrier as described in the housing replacement section.
Examine the guide sleeves and bushed housing guide sleeve
bores for signs of corrosion or wear. If there is any doubt in the
suitability for further service replace with new components.
CAUTION
Take care not to trap fingers whilst checking the sliding
action of the brake.
Check the brake rotor for signs of heavy grooving, cracking or
corrosion and the thickness dimension is in accordance with the
vehicle manufacturers recommendations. Replace as necessary.
Rotor specification
Rotor initial thickness
Minimum machined thickness
Minimum worn rotor thickness
45 mm
41 mm
39 mm
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