Ingersoll Rand HA1 Manuel D'installation page 8

7. CHAIN (ref. Dwg. MHP0102). Examine each of the links for
bending, cracks in weld areas or shoulders, traverse nicks and
gouges, weld splatter, corrosion pits, striation (minute parallel
lines) and chain wear, including bearing surfaces between chain
links. Replace a chain that fails any of the inspections. Check
chain lubrication and lubricate if necessary. See "Load Chain"
under "LUBRICATION".
CAUTION
• The full extent of chain wear cannot be determined by visual
inspection. At any indication of chain wear inspect chain and load
sheave in accordance with instructions in "Periodic Inspection".
• A worn load chain may cause damage to the load sheave. If a
worn load sheave is suspected return hoist to your nearest
Ingersoll-Rand service repair center.
8. LOAD CHAIN REEVING. Make sure welds on standing links are
away from the powered load chain sheave. Reinstall chain if
necessary. Make sure chain is not capsized, twisted or kinked.
Adjust as required.
Periodic Inspection
Frequency of periodic inspection primarily depends on the severity of
usage:
NORMAL HEAVY
yearly semiannually
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 rivets, capscrews, nuts, cotter pins and other
fasteners on hooks, hoist body and chain bucket, if used. Replace
if missing and tighten or secure if loose.
2. ALL COMPONENTS. Inspect for wear, damage, distortion,
deformation and cleanliness. If external evidence indicates the
need for additional inspection return hoist to your nearest
Ingersoll-Rand service repair center.
3. HOOKS. Inspect hooks for cracks. Use magnetic particle or dye
penetrate to check for cracks. Inspect hook retaining parts.
Tighten or repair, if necessary.
4. LOAD CHAIN WHEELS. Check for damage or excessive wear.
Replace damaged parts. Observe the action of the load chain
feeding through the hoist. Do not operate a hoist unless the load
chain feeds through the hoist and hook block smoothly and
without audible clicking or other evidence of binding or
malfunctioning.
5. MOTOR. If performance is poor, contact your nearest service
repair center for repair information.
6. BRAKE. Raise a load equal to the rated capacity of the hoist a few
cms (inches) off the floor. Verify hoist holds the load without
drift. If drift occurs, contact your nearest service repair center for
repair information.
7. SUPPORTING STRUCTURE. If a permanent structure is used
inspect for continued ability to support load.
8. TROLLEY (if equipped). Refer to manufacturers instructions for
installation and service information.
9. LABELS AND TAGS. Check for presence and legibility. Replace
if necessary.
10. LOAD CHAIN END ANCHORS. Ensure end of load chain is
securely attached. Verify chain stop is attached to free end of
chain. Replace if missing.
11. LOAD CHAIN. Measure the chain for stretching by measuring
across five link sections all along the chain (ref. Dwg. MHP0041)
paying particular attention to the most reeved links. When any
five links in the working length reach or exceed the discard length
shown in Table 2, replace the entire chain. Always use a genuine
Ingersoll-Rand Material Handling replacement chain.
Table 2: Chain Link Dimensions
Model
No.
HA1
HA2
12. CHAIN CONTAINER. Check for damage or excessive wear and
that chain container is securely attached to the hoist. Secure or
replace if necessary.
13. LIMIT ASSEMBLY. Check limit arm moves freely. To limit hook
SEVERE
downward travel the stop buffer on the unloaded end of the chain
quarterly
must contact the limit arm. To limit hook upward travel the
bottom hook block must contact the limit arm.
To test "UP" and "DOWN" travel limits first run hoist slowly with
no load to verify proper function. Repeat test at full speed with no
load to verify proper function.
Hoists Not in Regular Use
1. A hoist which has been idle for a period of one month or more, but
less than one year, should be given an inspection conforming with
the requirements of "Frequent Inspection" before being placed
into service.
2. A hoist which has been idle for a period of more than one year
should be given a complete inspection conforming with the
requirements of "Periodic Inspection" before being placed into
service.
3. Standby hoists should be inspected at least semiannually in
accordance with the requirements of "Frequent Inspection". In
abnormal operating conditions equipment should be inspected at
shorter intervals.
7
Chain Size Normal Length
mm in mm
16 8,86 225
22 13,05 331
Discard Length
in mm
9,02 229
13,22 336