Hobart 9OC24S Operation Manual page 120

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HOBART BROTHERS COMPANY
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OPERATION, MAINTENANCE, AND OVERHAUL MANUAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
(b) Springs
Inspect al I springs for broken leaves.
H.
"F" Checks and Operations (6000 Hours or 5 Years)
(1) Engi,ne
These checks should determine whether the engine requires a complete overhaul
or whether it may be operated for another service period. High oil consumption,
low oil pressure at idle speed, oil dilution and other signs of wear must be con-
sidered.
Disassemble the engine sufficiently to perform the following inspections and
services.
Complete overhaul facilities should be available. If the user performs
this operation in his own shop, a shop manual should be procured from Cummins
Engine Company.
(a) Clean and calibrate injectors
Injectors must be cleaned and calibrated regularly to insure proper
fuel delivery to combustion chambers. Special tools are required.
It is suggested that the Cummins Distributor be consulted for this
operation.
(b) Check fuel pump calibration
This operation may be performed on an "as required" basis. Pump
calibration also requires special tools and testing equipment. Consult
the Cummins Distributor for information.
(c) Inspect bearings.
(d) Inspect cylinder liners.
(e) Inspect pistons.
(f) Inspect crankshaft jouma Is.
(g) Rebui Id cylinder heads.
(h) Replace piston rings.
(i) Replace cylinder liner seals.
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