Murphy Series LM300 manual

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The rules should oblige the seller to give the purchaser an operating instrucion of Murphy Series LM300, along with an item. The lack of an instruction or false information given to customer shall constitute grounds to apply for a complaint because of nonconformity of goods with the contract. In accordance with the law, a customer can receive an instruction in non-paper form; lately graphic and electronic forms of the manuals, as well as instructional videos have been majorly used. A necessary precondition for this is the unmistakable, legible character of an instruction.

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First and foremost, an user manual of Murphy Series LM300 should contain:
- informations concerning technical data of Murphy Series LM300
- name of the manufacturer and a year of construction of the Murphy Series LM300 item
- rules of operation, control and maintenance of the Murphy Series LM300 item
- safety signs and mark certificates which confirm compatibility with appropriate standards

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Usually it results from the lack of time and certainty about functionalities of purchased items. Unfortunately, networking and start-up of Murphy Series LM300 alone are not enough. An instruction contains a number of clues concerning respective functionalities, safety rules, maintenance methods (what means should be used), eventual defects of Murphy Series LM300, and methods of problem resolution. Eventually, when one still can't find the answer to his problems, he will be directed to the Murphy service. Lately animated manuals and instructional videos are quite popular among customers. These kinds of user manuals are effective; they assure that a customer will familiarize himself with the whole material, and won't skip complicated, technical information of Murphy Series LM300.

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Table of contents for the manual

  • Page 1

    LM-92164N Revised 10-03 Section 15 (00-02-0176) Installation Instructions for Level Maintainers Model Series LM300 LM300: Level Maintainer only (no switches). LM301: Low switch contacts for low level shutdown or alarm. Four wires, SPDT . LM302: T wo switches for low and high level shutdown or alarm. Four wires, DPST , wired N.O. in normal operating[...]

  • Page 2

    LM-92164N page 2 of 4 DIMENSIONS TYPICAL INST ALLA TION 8-1/4 in. (210 mm) Crankcase Vent 1/2-14 NPT Oil Inlet Connection * 1/2-14 NPT with removable screen 6 in. (152 mm) Test Knob Electrical Conduit 1/2-14 NPT Monitoring Port Connection 3 places, 3/4-14 NPT * Applies to level maintaining models only. 7-3/16 in. (183 mm) 5-3/16 in. (132 mm) 3/8-16[...]

  • Page 3

    LM-92164N page 3 of 4 TYPICAL INST ALLA TION continued Crankcase (Oil Pan) Mounting 1. Install the universal bracket to the crankcase using the existing crankcase bolts (Figure 3A). Crankcase bolt diameter must be no larger than 7/16 inch (1 1 mm). NOTE: Check clearance between crankcase and mounting bracket before installing the mounting bracket. [...]

  • Page 4

    LM-92164N page 4 of 4 OPERA TING RANGES OF SWITCHES 3/4 in. (19 mm) Normal Operating Range Low Zone Shutdown or Alarm High Zone Shutdown or Alarm 3/8 in. (10 mm) 3/8 in. (10 mm) 3/4 in. (19 mm) Normal Operating Range Low Zone Alarm Low-Low Zone Shutdown 3/4 in. (19 mm) 3/8 in. (10 mm) 1/4 in. (6 mm) SWITCH WIRING DIAGRAMS LM301 SPDT LM302 High/Low [...]