LR-9017N page 1 of 2
Description
Murphy LR857 Lube Level Regulator maintains the crankcase oil
level of an engine, pump or compressor. Adjusted to the correct
run-
ning-oil-level
, the LR857 will replenish oil as it is used. An integral,
low-level switch will alarm and/or shutdown the equipment if supply
oil is lost and the equipment continues to use oil.
Specifications
Inlet Connection:
5/8 in. (16 mm) I.D. hose
Outlet Connection:
3/8 NPT
Snap-switch:
SPDT rating 10 A @ 125 VAC; 0.5 A @ 125 VDC;
10 A @ 30 VDC
Conduit Connection:
1/2 NPT
Case:
Die cast aluminum
Lens:
Polycarbonate
Float:
Brass
Thumb-Valve™ Operation
As the equipment uses oil, the float falls, providing immediate level
compensation. 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.
Optional Mounting Brackets And Fittings Kit
Murphy offers two mounting brackets for the LR857. The (15000238)
Pipe Bracket Kit fits a 7/8 in. (22 mm) diameter pipe. The (15010224)
Universal Flange Kit allows various mounting methods. See
Dimensions section on reverse side.
The (15000420) Fittings Kit includes the following:
Quantity
Description
1
1/4 in. (6 mm) O.D. copper cane tube (vent connection)
1
1/4 in. (6 mm) tube x 1/4 male pipe fitting
1
1/2 in. (13 mm) I.D. hose fitting (outlet connection)
Flow Rates
Oil with 0.9 specific gravity @ 70°F (21°C)
Service Parts
Part Number
Description
15000159
Inlet Valve Assembly
15000100
Glass and Switch Assembly
15000161
Lid Assembly
15000941
Float Assembly (Brass-std)
15010224
Universal Flange Kit
15000238
Pipe Bracket Kit
15000420
Fittings Kit
Installation Instructions for
LR857 Level Regulator
LR-9017N
Revised 03-05
Section 15
(00-02-0177)
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.
0
05
10
15
20
25
0
Flow:
USGPM
Head Pressure–Feet of Oil
Head Pressure–psi
0 psi
9.73 psi
0.2500 0.5000
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
LR857
Case
Float
Action
Oil Inlet
Thumb-Valve™
FULL
LOW
N.C. (red)
Simplified Drawing
*
* Products covered by this literature comply with EMC Council directive 89/336/EEC regarding
electromagnetic compatibility except as noted.
