TM 32-5985-343-14&P
Section III. LUBRICATION INSTRUCTIONS
5-4 GENERAL. Keep all lubricants in closed containers
lubricants. Check gearcase for proper oil level by
and store in a clean, dry place away from external heat.
removing red oil-level plug. Fill with oil through one of
Do not allow dust, dirt, or other foreign material to mix
the upper openings until oil reaches oil level hole, then
with the lubricants. Keep all lubrication equipment clean
replace plugs tightly.
and ready to use. Keep all external parts that do not
b. Change gearcase lubricant after first 250 hours of
require lubrication free of lubricants. Before lubricating
use and every 1,500 hours of operation after this initial
equipment, wipe all lubrication points free of dirt and
period with Mobil Temp 78.
grease. Clean all lubricated points after lubrication to
c. All viscosity group 318.63 lubricants must be
prevent accumulation of foreign matter. Service the
lubricated points at proper intervals as shown in figures
changed after 300 hours of high-temperature operation.
d. Proper lubrication with specified lubricants is
for the elevator and tower hoists in paragraph 5-5,
particularly important in arctic and desert climates.
below.
5-5 ELEVATOR AND TOWER ELECTRIC HOISTS.
Refer to figure 5-2.
Table 5-2. Lubricant Viscosity Groups for Electric Hoists
Lubricant viscosity group
Ambient temperature
300 rpm or less
Over 300 rpm
-65to 0F*
318.59
-
-45to +200F*
318.60
318.59
-5to +55F*
318.61
318.60
+15to +1100F
318.62
318.62
+100to +165F
318.63**
318.63**
*For temperatures below +10F, special oil seals are required.
**All lubricants of viscosity group 318.63 must be changed after 300 hours of high-
temperature operation.
Table 5-3. Lubricants Recommended for Electric Hoists
Viscosity group
Lubricant
318.59
Avrex 903
318.60
Mobil Fluid 423
318.61
Mobil Oil Co. HD90
318.62
Mobil Oil Co. 600W
318.63*
*All lubricants of viscosity group 318.63 must be changed
after 300 hours of high-temperature operation.
5-2
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