Hobart 5359D Operation And Maintenance Manual page 150

c
OM 2012
(1) No 12-Y DC POM'W
.
(2) No vofta~~
fr om co~tro! box to actuator
C. The actuator wilf "surge"
uz&r the foI Io;'(ing conditions:
(1) "Stability" cr "gain" adjustmzntset too "high"
(2) II-u-cttlc I iu!rage binding
9. Enc:ine Trouble ShoFfing Procedures
A. General
The following engine trouble shooting procedures were taken from Detroit Diesel's
"Field Service Data Bookli .
Certain abnormal conditic;ls which may interfere with
satisFactory engine operation, toget~ier with method; of determining the cause of
such conditims, are covered in the Trouble Shooting Chart.
.
.
The ability of the engine to star: and operate properly depends primarily on two
things: .
(1) The presence of an adequate supply of air, compressed to a sufficiently
high compression pressure.
(2) The injection of the proper amount of fuel at the right time.
Lack of power , uneven running, excessive vibration, stalling, and hard starting
may be caued by low compress&,
faulty injection in one or more cylinders,
or lack of sufficient air.
Since proper compression, fue I injection , and the proper .amount of air are imporl,ant
to good engine performance, procedures for checking them are given here.
B. locating a Misfiring Cylinder
(I) Start cnginc'and allow it to run mtil it reaches normal operating temperatures.
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