Section 15 00-02-0729
02-11-11 - 7 -
2. Mount the LM500 to the universal bracket using two 1/4-20 UNC x 1-1/4 inch bolts, flat
and lock washers supplied. DO NOT tighten the adjustment bolts to tight as height
adjustment might be needed later during the operation. Refer to “Connecting Fittings
and Hoses” for information regarding height adjustment of the LM500 in alignment with
the oil level in the crankcase.
Connecting Fittings and Hoses
The following instructions are based on the Murphy hose kit
described on page 3.
1. Install the LM500 fittings in their proper locations
NOTE: Apply a sealant such as Teflon®, to all
threaded connections.
2. Attach the 1 inch (25mm) diameter, flexible monitoring hose
to the crankcase and the monitoring port on the LM500. See
Figure 5.
CAUTION: The hose must slope slightly downward from
the LM500 and MUST NOT have any droops or low spots.
NOTE: if the drain plug on the crankcase is used for the connection, it is
recommended that a tee be installed to allow draining of the crankcase for
service.
3. Install the 1/2 inch (13mm) I.D. x 3 ft (914 mm) hose to the vent connection on the
LM500 and to vent connection on the crankcase. See Figure 5. The vent connection
on the crankcase must be well above the regulated oil level. All hoses must be
clear of obstructions, valleys, or dips that could create liquid traps, or gas/air pockets.
The vent and crankcase connections should be as straight as possible.
BEFORE CONTINUING, VERIFY THAT ALL HOSE CLAMPS ARE TIGHT.
4. Fill the crankcase to the proper oil level.
IMPORTANT: With the engine running and warm, loosen the mounting
bracket adjustment bolts and adjust the LM500 so that the oil level in the
sight gauge is aligned with the middle of the green bar on the dial (see
example, Figure 5).
5. Tighten the adjustment bolts securely.
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