Murphy Lube Level Maintainer LM2000 User Manual download pdf

Description

The Murphy LM2000 model maintains the crankcase oil level of an engine,

pump or compressor. Adjusted to the correct running-oil-level, the LM2000 will

replenish oil as it is used. An integral, low-level switch will alarm and/or shut-

down the equipment if supply oil is lost and the equipment continues to use oil.

Specifications

Crankcase Balance Vent Connection: 1/2 NPTF (top).

Inlet Connection: 1/2 NPTF with removable screen (side).

Outlet Connection: LM2000 3/4 NPTF (bottom).

LM2000S 2 x 3/8 NPTF (side)

1 x 3/4 NPTF (bottom)

Thumb-Valve

Material: Viton.

Snap-switch: SPDT rating 10 A, 125 VAC; 0.5 A, 125 VDC; 10 A, 30 VDC.

Wire leads: 18 AWG x 24 in.(609 mm) length.

Conduit Connection: 1/2 inch conduit (female, top).

Case: Die cast aluminum

Lens: Clear “Frog Eye” non-staining, high impact, high temperature nylon; UV

and heat stabilized.

Dial: High visibility white background with green and white “index” lines

for normal level indication.

Maximum Inlet Pressure: 9.50 psi/25 ft. oil (head pressure).

Maximum Case Pressure: 15 psi (103 kPa).

Maximum Differential: 2 in. (51 mm) between running and stopped.

Maximum Ambient Temperature: 250°F (121°C).

Float: Brass

Flow Rates: SAE 40 motor oil @ 32°F (0°C) with 2 ft. head pressure: 0.5

GPH (1.9 LPH).

NOTE: Friction losses due to piping not considered.

Optional Vent Fittings Kit: 15000954

The 15000943 kit is sold separately. It includes the following items:

Quantity Description

1 Tubing vent (15050202).

1 1/4 x 1/4 NPT Connector (85030447).

Optional Hose Kit:

15000355

Quantity Description

1 1/2 in. (13 mm) I.D. x 3 ft. (914 mm) long hose (89020202)

1 1 in. (25 mm) I.D. x 3 ft. (914 mm) long hose (89020203)

2 1/2 in. (13 mm) worm gear clamp (00003502)

2 1 in. (25 mm) worm gear clamp (00003503)

2 1/2 NPT x 1/2 in. (13 mm) barbed fitting (89080801)

2 3/4 NPT x 1 in. (25 mm) barbed fitting (89081001)

Thumb-Valve™ Operation

As the equipment uses oil, the float falls, providing immediate level compen-

sation. At FULL position, the float holds the valve closed. If the clean oil

supply is depleted and oil level continues to fall, the low level switch will

operate an alarm or equipment shutdown.

Service Parts

(Specify part number)

Description Part Number

Vent Fittings Kit 15000954

Hose Kit 15000355

1/2NPT x 1/2 in. Hose Barbed Fitting 89080801

3/4NPT x 1/2 in. Hose Barbed Fitting 89081001

3/8NPTF x 1/2 in. Hose Barbed Fitting 89080601

Pipe Bracket Kit 15000238

Universal Flange Kit 15010224

LM2000/LM2000S Lube Level Maintainer

Installation Instructions

LM-00011N

Revised 10-03

Section 15

(00-02-0423)

WARNING

BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT

✔ Disconnect all electrical power to the machine.

✔ Make sure the machine cannot operate during installation.

✔ Follow all safety warnings of the machine manufacturer.

✔ Read and follow all installation instructions.

Please read the following information before installing. A visual inspection of this product for damage during shipping is

recommended before mounting. CRANKCASE MUST BE DRAINED BEFORE INSTALLATION.

GENERAL INFORMATION

COM.

(white)

N.O. (black)

Low Level Switch

LM2000

Case

Float

Action

Oil Inlet

Thumb-Valve™

FULL

LOW

N.C. (red)

Thumb-Valve

and

Snap-switch

Schematic

LM-00011N page 1 of 4LM-00011N page 1 of 4

1 2 3 4

Summary of Contents

Page 1 - Installation Instructions

DescriptionThe Murphy LM2000 model maintains the crankcase oil level of an engine,pump or compressor. Adjusted to the correct running-oil-level, the L

Page 2 - Mounting the LM2000

LM-00011N page 2 of 4TYPICAL INSTALLATIONDIMENSIONS1/2 in. ElectricalFemale ConduitConnectionCrankcaseBalance Vent1/2 NPTF4-5/8 in.(117 mm)4-1/2 to 5-

Page 3 - Switch Test

Crankcase (Oil Pan) Mounting1. Install the universal bracket to the crankcase using the existing crankcase bolts(Figure 3A). Crankcase bolt diameter m

Page 4 - Warranty

OPERATING RANGE OF THE SNAP-SWITCHLM2000 Typical Installation Shown with FSV Series Valves Normal Operating RangeApprox. Normal levelsin feet of head.

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Murphy Lube Level Maintainer LM2000 User Manual

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Summary of Contents

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