Murphy EL150EX - Manual (Page 4)

L-7758N page 4 of 4
REPAIR KITS
STANDARD ELECTRICAL DIAGRAMS
Repair kits are available for the L150, EL150K1 and EL150EX models.
When ordering a repair kit specify model repair kit number from chart below:
Model
Components Repair Kit No.
L150 All parts except case/body 15-00-0138
Case/body assembly 15-00-0101
EL150K1 All parts except case/body 15-00-0139
Lens and switch assembly 15-00-0100
Case/body assembly 15-00-0101
EL150EX Cover and float assembly 15-00-0110
Lid assembly 15-00-0108
Switch/Terminal assembly 15-00-0109
Replacing the Float and Cover
Assembly for the L150 and EL150K1
1. As applicable, shut off liquid to the SWICHGAGE ® or drain the
system level below the SWICHGAGE ® .
2. Disconnect electrical lead(s), one at a time and tag for reinstallation.
3. Disconnect conduit on EL150K1.
4. Remove the four screws that secure the float and glass assembly
to the case.
5. Remove and discard the old float and cover assembly.
6. Remove and discard the old gasket.
7. Install the new gasket.
8. Install the new float and cover assembly and secure it with
four screws.
9. Re-connect the conduit on EL150K1.
10. Re-connect the electrical lead(s).
11. As applicable, open valves to the SWICHGAGE
® or refill the system
to proper level.
12. Check the SWICHGAGE ® for proper operation at the full indicating
position. (Alarm not operated/engine continues to operate.)
13. Check the SWICHGAGE ® , alarm/shutdown circuit, by rotating the test
knob toward the low level point of the dial: alarm is operated/engine
shuts down.
14. Check for unrestricted float movement by rotating the switch test knob.
15. Replacement of the float and cover assembly is complete.
WARNING: Perform the following operation with
the power source “OFF”. Be sure engine and radiator
have cooled and coolant pressure has been relieved.
SEVERE BURNS can result. Never remove radiator cap on a hot
WARNING: PERFORM THE WIRING OPERATION WITH THE POWER SOURCE “OFF”.
CAUTION: On some high voltage CD ignition
systems, it may be necessary to coat the L150 contact
screw head with RTV to prevent “tracking” and false
contact operation during wet or high humidity conditions. Use
of the EL150K1 is recommended in these cases.
Full
Low
Full
Low
NC-Red
NO-Black
Common-
White
NC
NO
C
Low
Full
L150 EL150K1 EL150EX
NOTE: All models shown with pointer in full position.
CONTROL SYSTEMS & SERVICES DIVISION
P.O. Box 1819; Rosenberg, Texas 77471; USA
+1 281 633 4500 fax +1 281 633 4588
e-mail [email protected]
MURPHY DE MEXICO, S.A. DE C.V.
Blvd. Antonio Rocha Cordero 300, Fracción del Aguaje
San Luis Potosí, S.L.P.; México 78384
+52 444 8206264 fax +52 444 8206336
Villahermosa Office +52 993 3162117
e-mail [email protected]
www.murphymex.com.mx
FRANK W. MURPHY, LTD.
Church Rd.; Laverstock, Salisbury SP1 1QZ; U.K.
+44 1722 410055 fax +44 1722 410088
e-mail [email protected]
www.fwmurphy.co.uk
MURPHY SWITCH OF CALIFORNIA
41343 12th Street West
Palmdale, California 93551-1442; USA
+1 661 272 4700 fax +1 661 947 7570
e-mail [email protected]
www.murphyswitch.com
In order to consistently bring you the highest quality, full featured products, we reserve the right to change our specifications and designs at any time.
MACQUARRIE CORPORATION
1620 Hume Highway
Campbellfield, Vic 3061; Australia
+61 3 9358 5555 fax +61 3 9358 5558
e-mail [email protected]
FW Murphy
P.O. Box 470248
Tulsa, Oklahoma 74147 USA
+1 918 317 4100
fax +1 918 317 4266
e-mail [email protected]
www.fwmurphy.com
R
E G ISTERE D
USA–ISO 9001:2000 FM 28221
UK–ISO 9001:2000 FM 29422
Printed in U.S.A. 096699N
Warranty
A limited warranty on materials and workmanship is given with this FW Murphy product.
A copy of the warranty may be viewed or printed by going to www.fwmurphy.com/support/warranty.htm