Water Temperature And Oil Pressure Gauges; Vacuum Switch - Genie S-80 Service Manual

Service Manual - First Edition
7-7
Water Temperature and Oil
Pressure Gauges
The water temperature gauge is an electrical
gauge. The sending unit has limit contacts that are
factory set. The contacts will close at 230
o
(109 C). When the contacts close, the engine will
shut off to prevent damage and will not start until
the temperature drops below the contact point.
Temperature will be indicated when the key is on
and the Emergency Stop Button is pulled out to
the position.
ON
Component damage hazard.
Do not crank the engine with
the over-temperature light on.
The oil pressure gauge is an electrical gauge. The
sending unit has limit contacts that are factory set.
The contacts will close at 8 psi (0.55 bar). When
the contacts close, the engine will shut off to
prevent damage. Oil pressure will be indicated
when the engine is running.
Component damage hazard.
Do not crank the engine with the
low oil pressure light on.
Part No. 34032
7-8

Vacuum Switch

How to Test the Vacuum Switch
o F
1 Connect the leads from an ohmmeter or
continuity tester to the common and normally
open terminals.
Result: There should be no continuity
(infinite W).
2 Apply mild suction to the vacuum port.
Result: The switch should close and show full
continuity (zero W).
Genie S-80 & Genie S-85
Section 7 - Repair Procedures
FORD LSG-423 ENGINE
a b
d c
a ohmmeter
b common terminal (SOL.)
c vacuum switch
d normally open terminal (ING.)
Component damage hazard.
Do not short the vacuum switch
terminals to ground.
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