Model 28L Service Manual, SM28LM-AA Page 3
Eskridge, Inc. Olathe, Ks. 913-782-1238 www.eskridgeinc.
com
LUBRICATION & MAINTENANCE
Operating Position
Oil Capacity
Single/Double
stage
Oil Level
Horizontal Shaft
14 oz / .41 L
To horizontal centerline of
gear drive
Vertical Shaft (Pinion Up)
-
-
Vertical Shaft (Pinion Down)
17 oz / .50 L
See Product Specifications
Sheet
Using the chart below, determine an appropriate lubricant viscosity. Use only EP (extreme pressure) or API GL-5 designated lubricants.
Change the lubricant after the first 50 hours of operation and at 500 hour intervals thereafter.
80W90 conventional
75W90 conventional
85W140 conventional
75W90 synthetic
80W140 synthetic
Note: Ambient temperature is the air temperature measured in the immediate vicinity of the gearbox. A Gearbox exposed to the direct rays of
the sun or other radiant heat sources will operate at higher temperatures and therefore must be given special consideration. The max operating
temperature must not be exceeded under any circumstances, regardless of ambient temperature.
If your unit was specified “shaft up” or with a “-Z” option, a grease zerk was provided in the base housing. For shaft-up operation, the
output bearing will not run in oil and must be grease lubricated. Use a lithium based or general purpose bearing grease sparingly every
50 operating hours or at regular maintenance intervals. Over-greasing the output bearing should be avoided as it tends to fill the housing
with grease and thicken the oil
Recommended ambient and operating temperatures for conventional and synthetic gear lubricants
-50 -25 0 25 50 75 100 125 150 175 200 225 250 F
-45 -32 -18 -4 10 24 38 52 66 79 93 107 121 C
Min Ambient/operating temp
Max Operating temp
Max Ambient temp
ESKRIDGE MODEL 28L OIL CAPACITIES
ESKRIDGE PART NUMBER INTERPRETATION
Note: All non custom Eskridge Geardrives are issued a descriptive part number which includes information regard-
ing the Model, means of shaft retention, base style, shaft style, input mounting, input shaft size, overall ratio and
various available options. For a detailed breakdown of this information, please refer to Eskridge product specifica-
tion sheets found at: http://www.eskridgeinc.com/geardrives/gearprodspecs.html