11
2.
OIL CHANGE
Th
e gear oil should be changed a
ft
er the
fi
rst one hundred
(100) hours of operation, then every 1,000 operating hours
or six (6) months, whichever occurs
fi
rst.
Th
e gear oil must
be changed to remove wear particles that impede the reliable
and safe operation of the brake clutch and erode bearings,
gears and seals. Failure to change gear oil at these suggested
minimum intervals may contribute to intermittent brake slip-
page which could result in property damage, severe personal
injury or death.
Th
e gear oil should also be changed whenever the ambient
temperature changes signi
fi
cantly and an oil from a di
ff
erent
temperature range would be more appropriate. Oil viscos-
ity with regard to ambient temperature 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 that the gear oil viscosity used
in your hoist is correct for your prevailing ambient tempera-
ture. Failure to use the proper type and viscosity of planetary
gear oil may contribute to brake clutch slippage which could
result in property damage, severe personal injury or death.
Refer to “Recommended Planetary Gear Oil” for additional
information.
3.
VENT PLUG
Th
e vent plug is located in the drum support as shown. It
is very important to keep this vent clean and unobstructed.
Whenever gear oil is changed, remove vent plug, clean in sol-
vent and reinstall.
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4.
HYDRAULIC SYSTEM
Th
e original
fi
lter element should be replaced a
ft
er the
fi
rst
fift
y (50) hours of operation, then every 500 operating hours
or three (3) months, or in accordance with the equipment
manufacturer’s recommendations.
5.
WIRE ROPE
Inspect entire length of wire rope according to wire rope
manufacturers recommendations.
6.
MOUNTING BOLTS
Tighten all hoist base mounting bolts to recommended
torque a
ft
er the
fi
rst one hundred (100) hours of operation,
then every 1000 operating hours or six (6) months, whichever
occurs
fi
rst.
7.
WARM-UP PROCEDURES
A warm-up procedure is recommended at each start-up and
is essential at ambient temperatures below +40°F (4°C).
Th
e prime mover should be run at its lowest recommended
RPM with the hydraulic hoist control valve in neutral allow-
ing su
ffi
cient time to warm up the system.
Th
e hoist should
then be operated at low speeds, raise and lower, several times
to prime all lines with warm hydraulic oil, and to circulate
gear lubricant through the planetary gear sets.
8.
INSPECTION
A.
Bearings and Gears
– Refer to
DISASSEMBLY OF Hoist, page 16; and
PLANET CARRIER SERVICE, page 20.
B.
Brake Cylinder
– Refer to MOTOR
SUPPORT – BRAKE CYLINDER SERVICE,
pages 22 and 23.
C.
Brake Clutch
– Refer to BRAKE CLUTCH
SERVICE, page 26.
5(&200(1'('3/$1(7$5<*($52,/
Use of the proper planetary gear oil is essential to reliable
and safe operation of the brake clutch and obtaining long
gear train life.
For simplicity, BRADEN has listed one (1) readily available
product in each temperature range which has been tested
and found to meet our speci
fi
cations.
Failure to properly warm up the hoist, particularly under
low ambient temperature conditions, may result in tempo-
rary brake slippage due to high back pressures attempting
to release the brake, which could result in property dam-
age, severe personal injury or death.
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 per-
sonal injury or death. Some gear lubricants contain large
amounts of EP (extreme pressure) and anti-friction addi-
tives which may contribute to brake clutch slippage and
damage to brake friction discs or seals. Oil viscosity with
regard to ambient temperature is also critical to reliable
brake clutch operation. Our tests indicate that excessive-
ly heavy or thick gear oil may contribute to intermittent
brake clutch slippage. Make certain that the gear oil viscos-
ity used in your hoist is correct for your prevailing ambi-
ent temperature.