BRADEN CH280 Installation Maintenance And Service Manual page 14

NOTE: If the oil sampling/analysis has not been performed as required, refer to the teardown inspection
section below.
The user of BRADEN products is responsible for hoist inspection, testing and maintenance noted above with frequency
dependent upon the severity of the hoist duty cycle and the thoroughness of the preventive maintenance program in
effect.
Alternate inspection periods may be used if approved in writing by BRADEN. Those that are interested in an alter-
nate inspection period should submit a written proposal to BRADEN that includes typical duty cycle for the hoist along
with a detailed description of the preventive maintenance program for these hoists.
Inspection Records and Retention
Crane inspection reports as well as records of preventive maintenance, repairs and modifications to hoists should be
available and accessible for a minimum of two years. These records should include, but not be limited to, hoist model
and serial number, name and employer of repair/inspection technician, date and description of preventive maintenance,
functional test reports and repairs.
To provide customers with qualified outlets for hoist service and repairs, BRADEN has established authorized Service
Centers. These Service Centers have factory trained service technicians, up-to-date service information, extensive
parts inventories, complete testing facilities, and are audited by BRADEN on a regular basis for compliance. BRADEN
strongly recommends the use of BRADEN authorized Service Centers for maintenance, repair and inspection of
BRADEN/Gearmatic products. Contact the BRADEN Product Support Department at 918-251-8511 for the names of
current authorized Service Centers.
TEARDOWN INSPECTION – Any Hoist that has NOT been subject to regular oil sample analysis should un-
dergo a teardown inspection on an annual (12-month) basis. Also, if a hoist has an unknown history of repair and/
or maintenance, it is recommended that the hoist undergo a teardown inspection prior to it being placed into service.
A teardown inspection should include the hoist being completely disassembled, cleaned and inspected and replace-
ment of all worn, cracked, corroded or distorted parts such as pins, bearings, shafts, gears, brake rotors, brake plates,
drum and base. Refer to the applicable BRADEN or Gearmatic Service Manual for more details. All seals and O-rings
should be replaced during a teardown inspection.
Any deficiencies, such as those listed above shall be corrected immediately.
All of the following operations must be performed before the hoist is placed back in service:
The rebuilt hoist must be line pull tested to the rated load of the hoist (hoist rating will vary with motor, gear ratio and
drum options) with a dynamometer or equivalent measuring device. This test load should be the maximum rating for
the hoist for the specific application (at the normal hydraulic relief valve setting for the hoist), not the reduced rating for
personnel lifting.
The hoist must be dynamically tested by rotating the drum several times, in both the hoisting and lowering directions,
while under a load of at least 30% of the hoist lifting capacity. Check for smooth operation during this procedure.
The brake should be tested per the brake test procedures on Page 6 of Publication PB-308.
After inspection or rebuild and testing, a new certificate for personnel handling will be issued by the inspector/ service
technician effective on the date the hoist is placed back in service.
See sample inspection certificate on next page.
14