MAC 6000, Руководство пользователя

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MAC 6000 Hydronic Heater
Trailer Axle Manual
2106 East Indiana Ave., Bismarck, ND 58504 U.S.A. • www.macheaters.com • +1-800-272-4604
10
Rev: 07.25.2013
CLEAN AND INSPECT BRAKES
In the event the braking system encounters symptoms of improper application or
failure, immediate inspection and service must be implemented. During normal use,
servicing the braking system once a year is considered normal. Increased usage will
require service on a regulated schedule based on 3000-6000 mile increments. As
magnets and shoes become worn, they need to be changed to maintain maximum
braking capability.
Be sure, when disassembling brakes for cleaning, to clean the backing plate, magnet
arm, magnet and shoes. Also, make sure that any and all parts removed for cleaning
are placed back into the same brake drum assembly. This is also an excellent time to
check for parts that have become loose or worn.
Potential Asbestos Dust Hazard
Older brake linings have the potential to contain asbestos dust, which has been linked
to serious or fatal illnesses. Certain precautions must be taken when servicing brakes:
1. Avoid creating and/or breathing any brake dust.
2. Do not machine, file, or grind the brake linings.
3. Remove with a damp brush or cloth. Dry brushing or compressed air will cause
the dust particles to become airborne.
MAGNETS
This electric braking system utilizes an electromagnet to actuate the brake shoes.
These high-quality magnets provide superior force and friction to safely and effectively
stop the trailer. These magnets should be inspected and serviced on the same
schedule as the rest of the axle system, at east once a year for normal use and more
often if the trailer is used extensively. Abnormal or uneven wear is a sign that the
magnet needs to be replaced. Check the surface of the magnet with a straight edge to
check for uneven wear. The surface of the magnet should be completely flat.
If the magnet’s coil is exposed in any way, even if normal wear is evident, the magnets
should be replaced immediately. If the electromagnets are replaced, the drum
armature surface should also be refaced. If a magnet is replaced on one side of an axle,
it is recommended that the magnet on the opposite brake assembly also be replaced
to ensure even braking capacity.
Figure 6, below, shows an Electro-Magnet with little or no wear. If there are any
pronounced gaps on the surface of the Electro-Magnet, the magnet should be
replaced.
Fig. 6
Electric Brake Maintenance