Hobart 9OC24S Operation Manual page 231

;MOTOR GENERATOR DIVISION
HOBART BROTHERS COMPWY
c
OPERATION, MAINTENANCE, AND OVERHAUL MANUAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
TROUBLE, SYMPTOM
AND CONDITIONS PROBABLE CAUSE
TEST, CHECK, AND/OR REMEDY
ENGINE AND CONTROLS (CONT'D.)
4. Engine will not
C. (Con tit&d) C . (Continued)
start. Cranking
speed n,orma I . (4) (Continued)
(4) leaking or damaged condition.
Green indicating
light GLOWS
(5) Faulty installation (5)Restricted fitting missing from
when engine con'- return I ine .
trol switch is in
RUN position .
(6) Faulty fuel pump
(6) Check pump.
Operating mode
switch in DRIVE (a)ReIief valve not (a)An open relief valve will
position (Cont'd)
seating . cause low output pressure.
(b) Worn pump gears (b)Check pump for normal
or damaged pump operation. Replace if
drive defective.
D. Low ambient temperature, D. Check causes and remedies under
or limited fuel ENGINE, Trouble 3, A and B
above .
E. Low compression which
E . Check compression.
may be caused by any one
of the following:
(1) Sticking or burned (l)Cylinder head must be remove<
exhaust va Ives and overhauled to correct this
condition.
(2) Compression rings worn
or broken
(3) Improper va Ive
c learance adjustment
(2) Check compression.
(3)Check and adjust valve clear-
ante in accordance with in-
structions in Cummins Opera-
tion and Maintenance Manual,
T--..LI, CL--J.'-- PI---r /CLARA /z -I rn\
Ott 30/73
~roume mooring Lnar r \maor d or 171
Figure 6
3-2
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