Instruction/ maintenance manual of the product MC-900 Series Murphy
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SERIES MC-900 MURPHYMA TIC ® MANUAL GENERA TOR ENGINE CONTROL SYSTEM DESIGN, INST ALLA TION AND OPERA TING MANUAL MC-9142N Revised 12-00 Section 40 ( 00-02-0202).
T able of Contents Section 1: Introduction page 1 1-1 System ............................................................................................................................................... 1 1-2 Models .................................
Section 1: Introduction 1-1 System. 1-1.1 The MURPHYMA TIC ® Manual Generator Engine Control System, Series MC-900 is designed to meet the requirements of the engine control and shutdown for manual start generator engines.
3-2 MC-900. 3-2.1 Control / Display Module. The Control / Display Module, figure 3-2.1, includes the control and test switches, the solid state logic elements and shutdown T A TTLET ALE ® lights that make up the generator engine control for a four cycle engine.
or Start and no shutdown T A TTLET ALE ® circuit is latched on. This can be used to signal that the generator engine is ready to start or is running. 3-3 MC-900-2. 3-3.1 Control / Display Module. The Control / Display Module, figure 3-2.1, is also used as on the Model MC-900-2.
4 5-1/2 in. (140 mm) 3-3/4 in. (95 mm) 3/16 in. (5 mm) dia. 4 places 5-5/8 in. (143 mm) 2-13/16 in. (71 mm) 3 in. (76 mm) 3-3/8 in. (86 mm) 6-3/4 in. (171 mm) 9-3/8 in. (238 mm) 6 in. (152 mm) 4-15/32 in. (114 mm) Mounting Holes 1/8 in. (3 mm) diameter 5 in.
5 15 26 4 27 28 4 29 30 31 32 33 34 FUSE B+ OUT B– TO HOURMETER B GROUND MAGNETIC PICKUP LOW OIL PRESS. GROUND HIGH WATER TEMP. SPARE #1 SHUTDOWN INPUT SPARE #2 SHUTDOWN INPUT SPARE #3 SHUTDOWN INPUT SPARE #4 SHUTDOWN INPUT 35 36 37 38 39 40 41 42 43 44 45 46 OVERCRANK LIGHT OUTPUT OVERSPEED LIGHT OUTPUT LOW OIL PRESS.
6 15 26 4 27 28 4 29 30 31 32 33 34 FUSE B+ OUT B– TO HOURMETER B GROUND MAGNETIC PICKUP LOW OIL PRESS. GROUND HIGH WATER TEMP. SPARE #1 SHUTDOWN INPUT SPARE #2 SHUTDOWN INPUT SPARE #3 SHUTDOWN INPUT SPARE #4 SHUTDOWN INPUT 35 36 37 38 39 40 41 42 43 44 45 46 OVERCRANK LIGHT OUTPUT OVERSPEED LIGHT OUTPUT LOW OIL PRESS.
7 across the coil to suppress reverse voltage that is generated whenever the inductive load is de-energized. This will protect the electronic components in the MC-900 and should prevent operating malfunction due to noise.
8 been adjusted for proper running speed, turn Mode Selector switch OFF . (e) All lights on the back of the MC-900 should go off and the engine stop. If engine does not stop, check run solenoid to be sure it has returned to the stop position.
7-1.2 Other tools which may be required are: 7-1.2.l AC/DC V oltmeter for taking voltage readings and an Ohmmeter for testing resistance of wires and connections.
Input 13.8 V oltage 27.6 Input 13.8 V oltage 27.6 Input 13.8 V oltage 27.6 Input 13.8 V oltage 27.6 10 1 13.8 27.6 13.8 27.6 13.8 27.6 13.8 27.6 4 0 00 00 0 00 5 13.8 27.6 0 0 0 0 13.8 27.6 6 0 0 13.8 27.6 13.8 27.6 0 0 7 0 00 00 0 00 8 0 00 00 0 00 9 0 00 00 0 00 10 0 0 0 0 0 0 13.
Section 8: Replacement Parts 8-1 Replacement Parts 8-1.1 T able 8-1 covers all of the replaceable components of the MC-900 Series Generator Engine Controls. The part numbers shown are Frank W . Murphy Mfr . part numbers and may not appear on the individual parts.
An important point after buying a device Murphy MC-900 Series (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Murphy MC-900 Series yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Murphy MC-900 Series - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Murphy MC-900 Series you will learn all the available features of the product, as well as information on its operation. The information that you get Murphy MC-900 Series will certainly help you make a decision on the purchase.
If you already are a holder of Murphy MC-900 Series, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Murphy MC-900 Series.
However, one of the most important roles played by the user manual is to help in solving problems with Murphy MC-900 Series. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Murphy MC-900 Series along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center