Hobart JET-EX 4 Operation And Maintenance Manual page 43

ELECTRICAL SYSTEM (28.5-V DC)
Check indicating light
Check operation of all instru-
ments, meters, etc.
Check generator brushes for
length, cleanliness, and
free operation
Check slip rings for smooth-
ness and cleanliness
Check the entire unit
Check overvoltage protection
Check all wiring connections
TRAILER
Lubricate
Check tire inflation
Check and adjust wheel bearings
Lubricate wheel bearings
Check brake tension
Every week, wipe off accumulated dust, dirt and oil from the engine and generator. Check all parts for
loose connections and wear. If arcing has occurred at any electrical connections, recondition them
and securely refasten. Check engine oil and coolant levels.
Every month, check generator for amperage and voltage output. Blow out generator windings with
compressed air, not over 25 psi (172 kPa) pressure or remove with a suction-type cleaner with a non-
metalic nozzle. If windings should become slightly damp, use space heaters or electrical light bulbs to
effectively dry out the windings. If dampness is excessive, apply external heat under a canvas cover,
well vented. Heating should not exceed 194 F (90 C).
Pound out any dents in the canopy. Sand, prime, and repaint any dented or rusted spots.
May 20/89
A/R 10 HRS. 100 HRS. 200 HRS. 400 HRS. 800 HRS.
OR
DAILY
X
X
Inspection/Check/Maintenance Schedule
Figure 1 (Sheet 2 of 2)
OR OR OR
2 WKS 1 MTH 2 MTHS
X
X
X
X
X
X
X
OM-2049
OR
6 MTHS
X
X
X
2-1
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