Preventive Maintenance - BRADEN CH400B Installation Maintenance And Service Manual

PREVENTIVE MAINTENANCE

A regular program of preventive maintenance for your
planetary hoist is strongly recommended to minimize the
need for emergency servicing and promote safe, reliable
hoist operation.
Field experience, supported by engineering tests, indi-
cates the three service procedures listed below are the
MOST critical to safe, reliable hoist operation and must
be observed.
• Regular Gear Oil Changes – every 1,000 hours or
six months
• Use of Proper Gear Oil – recommended type for pre-
vailing ambient temperature
• Annual Disassembly and Inspection of All Wear
Items – in compliance with American National Stan-
dards Institute (ANSI) specification B30.5c 1987 and
American Petroleum Institute (API) recommended
practice RP 2D section 3.
The following minimum service intervals are specified for
operating hours of the prime mover.
1. Oil Level
The gear oil level should be checked every 500 operat-
ing hours or three months, whichever occurs first. Oil
level should be even with the centerline of the hoist
drum visible in the sight gauge. If additional oil in
needed, refer to the Recommended Planetary Gear
Oil section of this manual.
2. Oil Change
The gear oil should be changed after the first 100 hours
of operation, then every 1,000 operating hours or six
months, whichever occurs first. The gear oil must be
changed to remove wear particles that impede the reli-
able 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 slippage which could result in prop-
erty damage, severe personal injury, or death.
Rotate the drum until the –8 drain plug is aligned with
the lowest opening in the drum end support plate. In-
stall a short piece of 1-inch pipe through the end plate.
Reach through the pipe with a 5/16 hex Allen wrench
and remove the –8 plug to drain the oil. Install the –8
plug and remove the 1-inch pipe when all the oil has
been drained from the drum. Although gear oil circu-
lates between the drive and the drum through holes in
the primary ring gear, it is advisable to also remove the
plug in the hoist drum.
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