55
MAC 6000 Hydronic Heater
Trailer Axle Manual
2106 East Indiana Ave., Bismarck, ND 58504 U.S.A. • www.macheaters.com • +1-800-272-4604
33
Rev: 07.25.2013
Storage
STORAGE
STORAGE PREPARATION
If your trailer is to be stored for an extended period of time the trailer will need to be
prepared prior to going into storage. Follow these guidelines to setup your trailer for
storage:
1. If the trailer has an emergency breakaway battery remove it and store it inside,
out of the weather. Charge the battery at least every 90 days.
2. Jack up the trailer and place jack stands under the trailer frame so that the
weight will be off the tires. Follow trailer manufacturer’s guidelines to lift and
support the trailer.
3. Lubricate mechanical moving parts such as the hitch, and suspension parts, that
are exposed to the weather.
4. In the case of boat trailer axles that are subject to repeated immersion, remove
brake drums; clean, dry and re-lubricate moving brake components; inspect
bearings - clean and relubricate.
Lift unit by the frame and never the axle or suspension. Do not
go under unit unless it is properly supported by jack stands.
Unsupported units can fall causing serious injury or death.
EXTENDED STORAGE INSPECTION PROCEDURES
Trailer should remain on jack stands during this procedure:
1. Remove all wheels and hubs or brake drums. Reinstall drum to same spindle and
brake from which it was removed.
2. Inspect suspension for wear.
3. Check tightness of hanger bolt, shackle bolt, and U-bolt nuts of the suspension
for correct torque.
4. Check brake linings, brake drums and armature faces for excessive wear, scoring,
damage or corrosion.
5. Check brake magnets with an ohmmeter. The magnets should check 3.2 ohms. If
shorted or worn excessively, they must be replaced.
6. Lubricate all brake moving parts using a high temperature brake lubricant.
7. Remove any rust from braking surface and armature surface of drums with fine
emery paper or crocus cloth. Be sure to protect bearings from contaminating
dust.
8. Inspect oil or grease seals for wear or nicks. Replace if necessary.
9. Lubricate hub bearings.
10. Reinstall hubs and adjust bearings.
11. Mount and tighten wheels.
NOTE: Avoid getting any grease or oil on brake linings and pads or magnet surfaces.
