BRADEN CH400B Installation Maintenance And Service Manual page 12

The gear oil should also be changed whenever the am-
bient temperature changes significantly and an oil from
a different temperature range would be more appropri-
ate. Oil viscosity with regard to ambient temperature is
critical to reliable brake clutch operation. Make certain
that the gear oil viscosity used in your hoist is correct
for your prevailing ambient temperature. Failure to use
the proper type and viscosity of planetary gear oil may
contribute to brake slippage which could result in prop-
erty damage, severe personal injury, or death. Refer to
the Recommended Planetary Gear Oil section of this
manual for additional information.
3. Vent Plug
The vent plug is located directly above the hoist mo-
tor near the brake release port. It is important to keep
this vent clean and unobstructed. Whenever gear oil is
changed, remove vent plug, clean in solvent and rein-
stall.
Do not paint over the vent or replace with a solid plug.
4. Hydraulic System
The original filter element should be replaced after
the first 50 hours of operation, then every 500 operat-
ing hours or three months, or in accordance with the
equipment manufacturer's recommendations.
5. Wire Rope
Inspect entire length of wire rope according to wire
rope manufacturer's recommendations.
6. Mounting Bolts
Tighten all hoist base mounting bolts to recommended
torque after the first 100 hours of operation, then every
1,000 operating hours or six months, whichever oc-
curs first.
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).
The prime mover should be run at its lowest recom-
mended RPM with the hydraulic hoist control valve
in neutral allowing sufficient time to warm up the sys-
tem. The hoist should then be operated at low speeds,
forward and reverse, several times to prime all lines
with warm hydraulic oil, and to circulate gear lubricant
through the planetary gear sets.
Failure to properly warm up the hoist, particularly un-
der low ambient temperature conditions, may result in
temporary brake slippage due to high back pressures
attempting to release the brake, which could result in
property damage, severe personal injury, or death.
8. Recommended Planetary Gear Oil
Field experience, supported by extensive engineering
tests, indicates the use of the proper planetary gear oil
is essential to reliable and safe operation of the brake
and obtaining long gear train life. Refer to "Recom-
mended Planetary Gear Oil" for additional information.
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 extreme pressure (EP) and antifric-
tion additives which may contribute to brake slippage
and damage to brake friction discs or seals. Oil viscos-
ity with regard to ambient temperature is also critical to
reliable brake operation. Our tests indicate that exces-
sively heavy or thick gear oil may contribute to inter-
mittent brake slippage. Make certain that the gear oil
viscosity used in your hoist is correct for your prevailing
ambient temperature.
9. Grease
Every 1,000 hours or six months grease drum support
at grease fitting using an NLGI #2 Lithium complex
base extreme-pressure (EP) grease that meets or ex-
ceeds NLGI GC or GC/LP specifications..
10. Inspection
In compliance with ANSI specification number
B30.5c1987 and API Recommended Practice RP 2D
section 3, we recommend that the hoist be disassem-
bled for a thorough inspection of all wear items every
2,000 hours of operation or 12 months, whichever oc-
curs first.
OIL FILL
ACCESS
OIL DRAIN ACCESS
12
NOTE: GREASE BEARING
BEFORE OPERATION.
REQUIRES PERIODIC
LUBRICATION
OIL LEVEL
ACCESS