Hobart 9OC24S Operation Manual page 269

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OPERATION, MAINTENANCE, AND OVERHAUL MANUAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
SECTION 1. ELECTRICAL REPAIRS
1. Genera I
Repair of the equipment will consist mainly of the replacement of parts found defective
by inspection as outlined in 2-2, or in trouble shooting in 3-2.
The, "black box" concept of quick repair is reflected in the design of electrical components
and circuitry. The three trays which contain generator controls, protective equipment,
and voltage regulating equipment are quickly replaceable. Likewise the governor
electric control box is easily replaceable.
Defective units should be sent to stock
for overhaul, or exchange.
2. Generator Control Box
The generator control box is generally repaired on the "line" by replacement of con-
trol trays or adjustment. See 2-3 for adiustment procedures. See 3-2 for trouble shooting
and identification of defective components.
3. Generator
Generator "repair " is covered fully in the Overhaul Chapter, 6-1, since major repairs
to the generator require removal and disassembly with overhaul type facilities.
4. Engine
Many engine electrical system repairs are included in 2-3. For more complicated
repairs, see the manufacturer's instructions in Chapter 8, or consult the local Cummins
distributor.
5. Connection Diaarams
Perhaps one of the most useful "tools" in repair or any electrical service work is a
connection diagram of the equipment involved. A complete set of connection dia-
grams for all standard units and variations is included in this section. When recon-
necting wires to an electrical component after replacement, use the connection
diagrams to make certain connections are made correctly.
Ott 30/73
5-l
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