Ingersoll-Rand HL1000K, Parts, Operation And Maintenance Manual

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3. HOOKS. Inspect hooks carefully for cracks using magnetic
particle or other suitable nondestructive method. Inspect
hook retaining parts. Tighten or repair, if necessary.
4. LOAD CHAIN WHEELS. Check for damage or excessive
wear. Replace if necessary. 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, disassemble the motor
and check for wear or damage to bearings and shafts. The
parts should be cleaned, lubricated and reassembled.
Replace worn or damaged parts.
6. BRAKE. Raise a load equal to the rated capacity of the
hoist 4 to 6 inches (100 to 150 mm) off the floor. Verify
hoist holds the load without drift. If drift occurs,
disassemble. Remove brake discs as described in the
“MAINTENANCE” section. Check and clean the brake
parts each time the hoist is disassembled. Replace the brake
discs if the thickness is less than 0.090 inch (2.29 mm).
7. SUPPORTING STRUCTURE. Check for distortion, wear
and continued ability to support load.
8. TROLLEY (if equipped). Check that the trolley wheels
track the beam properly and clearance between each wheel
flange and beam is correct, 3/32 to 1/8 in. (2 to 3 mm).
Check that wheels and beam are not excessively worn.
Inspect side plates for spreading due to bending. Do not
operate the hoist until any problems have been determined
and corrected.
9. LABELS AND TAGS. Check for presence and legibility.
Replace if necessary.
10. LOAD CHAIN END ANCHORS. Ensure both ends of load
chain are securely attached. Secure if loose, repair if
damaged, replace if missing.
11. LOAD CHAIN. Measure the load chain for wear over a
five link section as shown in Dwg. MHP1291. Pay
particular attention to the most frequently reeved links.
When any five links in the working length reaches or
exceeds the discard length shown in Table 3, replace the
entire chain. Always use a genuine Ingersoll-Rand
Material Handling replacement chain.
(Dwg. MHP1291)
Table 3 Load Chain Length
Dimensions Of Link
Number Of
Links
(n)
Discard
Length
(n)
Links
Nominal Wire
Diameter
(d)
Pitch
(t)
3/8
1.012 in
5
5.175 in
25.7 mm 131.4 mm
Zinc plated load chain is standard on HLK hoists built after
January 1996. Always use stainless steel load chain on
HL1000KR Spark Resistant Hoists.
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 throttle lever moves freely. To
limit hook downward travel the loop in the slack chain side
must contact the throttle lever. To limit hook upward travel
the bottom hook block, or stop ring, must contact the
throttle lever.
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. On Hoist
Models HL4500K and HL6000K the throttle lever (35)
may require minor adjustment to provide adequate
clearance with the upper suspension block.
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”
prior to being placed into service.
2. A hoist which has been idle for a period of more than one
year should be given an inspection conforming with the
requirements of “Periodic Inspection” prior to 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 hoists should be
inspected at shorter intervals.