The gear oil should be changed whenever the ambi-
ent temperature changes significantly and an oil
from a different viscosity range would be more
appropriate. Oil viscosity is critical to reliable brake
clutch operation. Our tests indicate that excessively
heavy or thick gear oil may contribute to intermittent
brake clutch slippage. Make certain the gear oil vis-
cosity used in your hoist is correct for your prevailing
ambient temperature.
NOTE:
If the oil sampling/analysis has not been per-
formed as required, tear-down inspections will be
required. Refer to Hoist Disassembly section of this
manual.
To change the gear oil, slowly rotate the drum until
the oil drain plug is aligned with the lower oil port
access hole. Install a short length of pipe threaded
for 1 in. NPT into the threaded drain port in the cable
drum. Reach through the pipe with a long hex-key
and remove the drain plug. The oil will drain out the
length of pipe and not between the drum and base.
When the oil has drained, install the plug and
remove the drain pipe. Removing the vent plug will
hasten the oil drain. Rotate the drum until the drain
port is aligned with the fill/level port in the end brack-
et. Refill the hoist with recommended lubricant.
Install the plug securely.
3. The vent plug is located in the drum bearing support.
It is important to keep the vent plug clean and unob-
structed. Whenever the gear oil is changed, the vent
plug should be removed, cleaned in solvent and
reinstalled. Do not paint over the vent plug or replace
with a solid plug or grease fitting.
Failure to use the proper type and viscosity gear oil
may result in loss of load control, property damage,
injury or death.
Recommended Planetary Gear Oil
For simplicity, Braden has listed available products in each temperature range that have been tested and found to
meet our specifications. This is not to say that other lubricant brands would not perform equally as well.
If the following lubricant brands are not available in your area, make certain your lubricant vendor supplies you with
oil that is equivalent to those products listed below.
Failure to use the proper type and viscosity of planetary gear oil may contribute to intermittent brake clutch slip-
page which could result in property damage, severe personal injury or death. Some gear lubricants contain large
amounts of EP (extreme pressure) and anti-friction additives which may contribute to brake slippage and dam-
age to brake friction discs or seals. Oil viscosity with regard to ambient temperature is also critical to reliable
brake operation. Our tests indicate that excessively heavy or thick gear oil may contribute to intermittent brake
slippage. Make certain that the gear oil viscosity used in your hoist is correct for your prevailing ambient temper-
ature.
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