TYPICAL INSTALLATION 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 (11 mm).
4.Fill the crankcase to the proper oil levels. With the engine running and warm, loosen the mounting bracket adjustment bolts and adjust the LM300 so that the oil level in the sight gauge is aligned with the white “index line” on the dial (Figure 4). Tighten the adjustment bolts securely.
Crankcase
Bolt
Universal
Bracket
Note Clearance before mounting
Crankcase
Adjustment
Bolt
Connecting the LM300 to an Oil Supply Tank (level maintaining models only)
1.Remove the caplug from the oil inlet connection. Be sure the filter, inside the connection, is clear of debris. Install the oil inlet connection.
2.Connect a 1/2 inch I.D. (13 mm) or larger hose
to oil inlet fitting on the LM300 and to the shutoff | Oil Supply | |
valve on the oil supply tank. See Figure 5. For | Tank | |
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models LM300 thru LM305 recommended |
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minimum mounting of the oil supply |
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tank above the LM is 4 ft. (1.2m); | Oil Inlet |
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| Hose |
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Figure 3A | Figure 3B |
NOTE: Check clearance between crankcase and mounting bracket before installing the mounting bracket. If space between the crankcase and mounting bracket does not allow installation and access to the adjustment bolts advance to Step 3.
2.Mount the LM300 to the universal bracket using two
3.If space between the crankcase and mounting bracket is narrow, install the universal mounting bracket to the LM300 before installing to the crankcase oil pan.
Connecting Fittings and Hoses
The following instructions are for all LM300 series level maintainers. All steps that reference oil inlet or oil supply tank DO NOT apply to
1.Install the LM300 fittings in their proper locations. NOTE: Apply a sealant such as teflon, to all threaded connections.
2.Attach the 1 inch (25 mm) diameter, flexible monitoring hose to the crankcase and the monitoring port on the LM300. See Figure 4. CAUTION: The hose must slope slightly downward from the LM300 and MUST NOT have any droop or low spots.
NOTE: If the drain plug on the crankcase |
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is used for the connection, we |
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recommend installation of a tee to | Oil Inlet |
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allow draining of the crankcase | Vent Hose |
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for service. | Hose |
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3. Install the 1/2 inch (13 mm) | Viewing | Running | |
Lens | |||
Engine | |||
I.D. x 3 ft. (914 mm) hose to |
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| Crankcase | ||
the vent connection on the |
| Oil Level | |
LM300 to the vent connection |
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on the crankcase. See Figure 4. | Monitoring Hose |
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The vent connection on the |
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crankcase must be well above the |
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regulated oil level. All hoses must | Figure 4 |
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be clear of obstructions. |
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BEFORE CONTINUING, VERIFY THAT ALL HOSE CLAMPS ARE TIGHT.
maximum 15 ft. (4.6m). The |
hose must maintain a downward slope and not have low spots or droops. Maximum head pressure rating using standard 1/4 in. (6 mm) orifice is 15 ft. (4.6 meters). See Flow Rate test on
page 1 for additional orifice pressure ratings.
Figure 5
3.Before filling the supply tank with
oil, be sure the tank is clean and dry andthe shutoff valve is closed. Also, be sure all hoses and clamps are tight. Fill the tank with CLEAN oil.
WARNING: Overfill condition can be caused by excessive inlet pressure, (maximum inlet pressure depends on orifice), and/or improper “vent to crankcase” installation.
See Flow Rate Test on page 1 for maximum pressure.
4.After oil supply tank is full, open the shutoff valve.
Next, make the proper electrical connections for the application. See contact ratings on page 1 and schematics on page 4.
Switch Test (switch models only) To test the shutdown and/or alarm functions perform the following:
1. Unscrew protective boot from test knob. IMPORTANT: Always replace boot after testing.
2.Turn the test knob 1/4 turn to the right
(clockwise), for low test indication (Figure 6).
3. Turn the knob 1/4 turn to the left | Figure 6 |
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(counterclockwise), for high test indication. DO NOT FORCE
THE TEST KNOB TO TURN.
NOTE: After the engine shuts down, you will notice that the oil in the sight gauge glass will rise above normal running level, possibly showing an overfill condition. This is a result of