Hobart 5359D Operation And Maintenance Manual page 164

OM 2012
Et.! G I.! E At\; D c:>tq I-T
---- _-.___-- ---
4. Engine is ho:.d to
sturt. Crank iny
speeti normal.
(Continued)
J.
Engine starts. Stops
after a few seconds
by automatic shut-
down. *
3-l
Page 18
LS (CONTiiJ ED)
-- --
B. LOW co&presioo;> wI1Ic11
may lz
ccruxd by any ow
of the fol I owirig :
(1) Sticking or burned
exhaust valves
(2) Compression rings
worn or broken
(3) Cylinder heud gasket
leaking
(4) Improper vaive
clearance adjustment
(5) Blower not function-
ing
A. The shut-down circuit
may'have functioned
normally to stop the
engine
because
of law
lubricating oil pressure.
B. Defective low oil pres-
sure switch (1, Fig. 4)
ruble Shooting Chart (Sheet 4 of
Figure 9
.
B. Check co:nprc::ion in accordc~;.,cc
wil I-I Partr . 9, C and D .
(1 ) Cylinder head mu:: TV re-
moved
and'
overhauled to
correct this condition.
(2
(3
Check rings in accordance
with Para. 9, E, (I).
Check gasket in ccccrdance
with Para. 9, E, (2).
(4) Check andadjuzt valve
clearance in accorduzce
with instructims in Detroit
DiFsel Operator's Manuti!.
(5) Inspect blower drive shaft
and drive coupling. ,Replgc
parts as required.
A. Reset shut-down valve latch
(7, Fig. 3). Start the engine
and observe oil pressure gage .
If pressure is less than 12 PSI,
stop engine at once and check
for cause of low pressure.
Repair as required.
B. Reset shut-down valve latch
(7, Fig. 3). Disconnect
ORANGE wire at low oil pres-
sure switch. Start engine. Ob-
serve oil pressure. If pressure
is 38 PSI, or more, check voltage
at oil pressure switch terminal
from which ORAN GE wire was
removed. If approximately 12-V
DC is indicated, the oil pressure
21)
Aug 25'85