AMMCO 800 On-The-Vehicle Brake Lathe • 11
Operating Instructions
Hub Adapter Mounting and Bearing
Inspection
6.0
After the wheels of the vehicle have been
removed, observe the position of the brake caliper
mounting to determine which side of the vehicle will
allow the 800 brake lathe to mount in the upright posi-
tion. This is the side of the vehicle to resurface first.
6.1
Select one of the hub adapters with mounting
holes that match the stud pattern of the vehicle and
has a center clearance that clears the vehicle’s hub
surfaces. The hub adapter is necessary to interface
the 800 brake lathe to the vehicle. In most cases, the
lug nuts that were removed from the wheel may be
used to secure the hub adapter.
Do not use impact tools to tighten the lug
nuts or damage to the hub adapter may
result.
6.2
After attach-
ment of the hub
adapter to the vehi-
cle, tighten each
lug nut, in a star
pattern sequence,
to a torque of
approximately 25-
30 ft./lbs. Note that
the screwdriver is
used to prevent
rotation.
6.3
Remove the brake caliper assembly using pro-
cedures and tools as defined by the vehicle’s manu-
facturer, and position it in an out of the way location.
Take care not to kink or twist the brake hose and use
a hanging method to prevent the caliper from interfer-
ing with the rotor refinishing operation.
6.4
Before attempting any rotor resurfacing, it is
necessary to check the wheel bearings. If they are
loose, they will affect the desired accuracy and sur-
face finish of the rotor being refinished and could be
the reason for the current brake problem.
CAUTION
On-The-Vehicle
