13
NOTE
Refer to Table 1 for oil capacities.
5.3.1 FILLING PROCEDURE
See Figure 4. Recommended lubricants are shown on page 42.
1. Remove ll plugs or breathers from both gear end and drive end plates.
2. SLOWLY pour oil through ll until oil appears in the oil sight glass. Bring oil level to center of sight glass.
3. Verify oil level is at proper level in BOTH gear end and drive end sight glasses.
4. Replace ll plugs or breathers that were removed in step 1.
Figure 4 - Location of oil fill, drain plugs, level plugs and level gauges
90C/92C SERIES
VERTICAL FLOW
90C SERIES
VERTICAL FLOW
91C/93C SERIES
HORIZONTAL FLOW
DRIVE END
SIDE SIDE SIDE
TOP
OIL FILL PLUG
(1) EA END PLATE
OIL FILL PLUG
(1) EA END PLATE
OIL FILL PLUG
(1) EA END PLATE
OIL LEVEL GAUGE
(1) EA END PLATE
OIL LEVEL GAUGE
(1) EA END PLATE
OIL LEVEL GAUGE
(1) EA END PLATE
MAGNETIC
DRAIN PLUG
(1) EA END PLATE
MAGNETIC DRAIN PLUG
(1) EA END PLATE
MAGNETIC DRAIN PLUG
(1) EA END PLATE
5.3.2 FREQUENTLY ASKED QUESTIONS REGARDING LUBRICATION
What is the functional detriment if the “wrong oil” is used?
The lubricant is selected based on bearing and gear speed, and operating temperature. Too light
of a lubricant increases wear by not separating the sliding surfaces and it will not remove the heat
adequately. If the lubricant is too thick, the drag in the bearings is increased causing them to run hotter.
Since it is thicker, it will not ow as readily into the gears and it will reduce the available backlash.
Lubricants at our conditions are incompressible.
What is the functional detriment if the oil is not serviced?
If the lubricant is not serviced at the proper interval the shearing action in the bearing and the gears will
begin to take their toll and the lubricant will thicken, making matters worse. The unit will run hotter and
the wear on running surfaces will increase. Generally, the lubricant will appear dirtier, this is actually
material rubbed off the unit’s components. The discoloration comes from overheating the additive
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