AMH BC-01 Manual Del Usuario página 4

Frequent Inspection
On trolleys in continuous service, frequent inspection should be made at the beginning of each shift. In addition,
visual inspections should be conducted during regular service for any damage or evidence of malfunction.
1. OPERATION. Operate the trolley so that it travels 3 feet (1 metre). During the 3 feet (1 metre) of travel,
check for visual signs or abnormal noises which could indicate a problem. Check for smooth operation. Do
not operate the trolley until all problems have been corrected.
Periodic Inspection
Frequency of periodic inspection depends on the severity of usage:
NORMAL
yearly
Disassembly may be required for HEAVY or SEVERE usage. Keep accumulative written records of periodic
inspections to provide a basis for continuing evaluation. Inspect all the items in "Frequent Inspection." Also inspect
the following:
1) FASTENERS. Check retainer rings and nuts. Replace if missing or damaged and tighten if loose.
2) ALL COMPONENTS. Inspect for wear, damage, distortion, deformation and cleanliness. If external
evidence indicates the need, disassemble. Check shafts, wheels, bearings and side plates. Replace worn or
damaged parts. Clean and reassemble.
3) SUPPORTING STRUCTURE. Check for distortion, wear and continued ability to support load.
4) TROLLEY. Check that the trolley wheels track the beam properly and total clearance between each wheel
and beam equals 1/16 to 1/8 in. (1.6 to 3.2 mm). Check side plates for spreading due to bending. Replace
as necessary.
5) LABELS. Check for presence and legibility. Replace if necessary.
•
Never perform maintenance on the trolley while it is supporting a load.
•
After performing any maintenance on the trolley, test trolley, as described in the "OPERATION" section, before
returning trolley to service.
•
When cutting the weld side of a hand chain link, do not cut or nick the opposite side. A damaged link must be
replaced to prevent premature failure. A falling hand chain can injure personnel.
•
Proper use, inspections and maintenance will increase the life and usefulness of your AMH equipment. During
assembly lubricate gears, nuts, bolts and all machined threads with applicable lubricants. Use of antiseize
compound and/or thread lubricant on capscrew and nut threaded areas prevents corrosion and allows for ease of
disassembly of component.
Trolley wheel bearings are sealed and require no lubrication. If trolley wheel rotation is rough or noisy, replace
trolley wheel bearing. Threaded components on this trolley are metric. Verify and match thread sizes before
assembly. Check operation of trolley according to the instructions in the "INSPECTION" and "OPERATION" sections
Hand Chain Adjustment or Replacement (Refer to Dwg. C-02 and C-03)
When cutting the weld side of a hand chain link, do not cut or nick the opposite side. A damaged link must be
replaced to prevent premature failure. A falling hand chain can injure personnel.
1) To create a "C" link, cut the welded side of the link with a hack saw. (Refer to Dwg. C-02) Clamp one side of
the "C" link in a vise and bend it open by using pliers to grip the exposed part of the link. (Refer to Dwg. C-
03)
2) If you are replacing the hand chain, disconnect it at the "C" link and carefully remove the hand chain.
3) To replace chain:
a) Cut a length of chain 2 times the required hand chain drop plus 1 foot (30 cm).
b) Run the new chain up through the left hand chain guide, around the hand wheel, making sure the
hand chain is seated in the hand wheel pockets, and back down through the right hand chain guide.
4) To adjust chain length:
MAN-AMH-TH08
HEAVY
semiannually
MAINTENANCE
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SEVERE
quarterly
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