Thermion BRIDGEMASTER, Owner'S Manual

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6.4.2 Combination Leads
Liners :
The liners inside the combination leads are considered consumable parts and
require periodic replacement due to wear or accumulation of dust or grit. The wear life
can be extended by using methods to minimize the amount of dirt that gets into the
system.

Cover the wire during idle periods, especially if the equipment is going to be in
the area during surface preparation.

A wiper may be used on the wire prior to it going into the liners.

Clean liners by spraying a solvent into the liner then blowing the material through
the liner with a blow gun.
The liner replacement technique is important to insure that air flows correctly through the
leads and into the spray head, refer to Section 7 for liner replacement technique.
O-Rings
:
The o-rings at each end of the leads should be inspected and replaced if
damaged. If there is damage and part of the o-ring is missing, inspect the leads to ensure
the missing piece is not causing blockage. Lubricate the o-rings and socket, with a light
grease, prior to insertion. The grease is necessary for a good air seal at both the feeder
end and at the head.
6.4.3 Feeder Unit
The feeder unit, being low maintenance, mostly requires cleaning and periodic
inspections. Keeping the feed rolls and gearing clean of dust and grit will extend life and
provide better service. A daily cleaning with an air blow gun should be sufficient. During
this cleaning, watch for any oil leaks from the motor. The motor will not require any oil
fills unless it has leaked. Examine the feed gears to assure they align correctly and mesh
over their full width. The feed gears roll on a shaft that is not lubricated; after extended
use, the gears can wear to the point of not aligning correctly and causing feeding
problems. At this point they will require rebuilding.
6.4.4 Control Cables
The control cables require routine inspection for separation at the connectors and for cuts
or breaks in the wire coverings. If any condition of abnormality is notice it must be
remedied immediately. CAUTION: when tightening cables, turn the connectors NOT
the entire cable or the wires may disconnect and cause shorts.