3. Follow these instructions:
!
WARNING
a. With an ohmmeter connected as outlined and
using suitable container, thermometer and
heat source, suspend sender with tip in sand.
The following test involves the use of intense
heat. Failure to follow appropriate procedures or
warnings can cause burns which can result in se-
vere personal injury. While performing the fol-
lowing test, observe these general precautions:
b. Heat sand and observe thermometer.
•
Wear personal protective clothing such as
rubber gloves, a non-flammable apron, and
eye protection - preferably full face shield or
safety glasses.
e
•
The appropriate heat source should only be
electric. Heat source should be operated by a
qualified person. Be sure to follow all instruc-
tions of the manufacturer of the heat source.
The heat source should be checked eachtime
it is used to be sure it is functioning properly.
b
•
The thermometer used in the test should be a
high-temperature thermometer with a maxi-
mum reading of at least 300°F (150°C). Under
no circumstances should the operator allow
temperatures to exceed test specifications.
a
d
c
•
•
Perform test only in a well ventilated area.
Use a suitable container, such as metal, to
hold the sand. Avoid use of glass containers
unless the operator first confirms for himself/
herself that the glass container is an appro-
priate high-temperature vessel.
72772
a - Sutiable Container
b - Thermometer
c - Heat Source
d - Transmisson Fluid Temperature Switch
e - Ohmmeter Leads
•
Because the components will reach high tem-
peratures DO NOT handle materials or com-
ponents until COMPLETELY cooled.
c. As temperature rises, switch will close and
ohmmeter will indicate continuity. Refer to
chart below for specifications.
!
WARNING
Switch Condition
Opens
Temperature
Useonlyclean,drysandsuchasusedforgeneral
sandblasting purposes. Use of sand containing
contaminants could result in hazards such as
fire, short circuiting, hot-spots, or other hazards.
180-200° F (82-93° C)
220-240° F (104-116° C)
Closes
4.
5.
Turn heat source off. Allow sand to cool. Note
thermometer reading to ensure switch opens up
at specified temperature.
Replace switch if switch fails to either open or
close within the specified temperature.
Index
4D-16 - INSTRUMENTATION
90-823224--2 796
| Categories | Mercury MerCruiser Manuals |
|---|---|
| Tags | Mercury MerCruiser 454 CID, Mercury MerCruiser 502 CID |
| Model Year | 1993, 1994, 1995, 1996, 1997 |
| Download File |
|
| Document File Type | |
| Copyright | Attribution Non-commercial |
(4 votes, average: 4.5 out of 5)
Marine readers have rated 1993 1997 Mercury-MerCruiser GM V8 454 CID 7.4L and 502 CID 8.2L Marine Engines Service Manual Number 16 4.5 out of 5.0 based on 4 product reviews. Hugely helpful service manual! Perfect. Thank you!
Manuals are all Important for Technician
This book is invaluable if you do your own repairs. Great book.
Could not find a copy until a search brought me here.
Excellent print.
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