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3.
WIRE ROPE. In addition to Frequent Inspection
requirements, also inspect for the following:
a.
Build-up of dirt and corrosion. Clean with steam or a
stiff wire brush to remove dirt and corrosion if
necessary.
b.
Loose or damaged end connection. Replace if loose or
damaged.
c.
Check wire rope anchor is secure in drum.
d.
Verify wire rope diameter. Measure the diameter of the
wire rope from crown-to-crown throughout the life of
the wire rope. Recording of the actual diameter should
only be done with the wire rope under equivalent
loading and in the same operating section as
accomplished during previous inspections. If the actual
diameter of the wire rope has decreased more than 1/64
inch (0.4 mm) a thorough examination of the wire rope
should be conducted by an experienced inspector to
determine the suitability of the wire rope to remain in
service. Refer to Dwg. MHP0056 on page 14.
(Dwg. MHP0056)
4.
PULLEYS. Inspect pulleys for wear or damage. Replace if
necessary.
5.
PIVOT ASSEMBLY. Inspect pivoting connections for
looseness, bearing wear, and smooth operation. Repair or
replace any loose or worn components.
6.
AIR SYSTEM. Inspect valves, controls, connections for
leakage and wear. Repair or replace components if leaks are
found or if operation is rough. Inspect all tubing, air lines,
and fittings for cuts, damage, or leakage. Repair or replace
tubing and fittings as necessary.
7.
SUPPORTING STRUCTURE. Check for distortion, wear
and continued ability to support load.
8.
CARRIAGE TROLLEYS. Check trolley assemblies for ease
of movement, loose or missing hardware. Check for cracks
in or damage to wheels. Repair or replace trolley and/or
wheels as necessary.
9.
LABELS AND TAGS. Check for presence and legibility of
labels. Replace if damaged or missing.
10. BALANCER. Inspect Balancer in accordance with
recommendations in Balancer Parts, Operation and
Maintenance manual.
11. CARRIAGE (optional feature). Inspect for cracks or
damage. Replace if either are found.
14
Wire Rope Inspection Procedure
To properly inspect the wire rope:
1.
Lower the load until all wire rope has played out of the
balancer.
2.
Use a gloved hand to run the length of wire rope exposed
below the end of arm pulley. IF THE GLOVE SNAGS ON
THE ROPE CHECK FOR FRAYING AND REPLACE AS
NECESSARY WITH APPROVED INGERSOLL-RAND
REPLACEMENT PART. Part number 10084-30 (galvanized)
10084-30SS (stainless).
3.
Use a permanent marker to mark the wire rope at the end of
arm pulley.
4.
Model 700C Arm
Place a rag over the wire rope at the balancer cable guide
opening.
Model 713 Arm
a.
Ensure wire rope is slack.
b.
Support the balancer.
c.
Remove top balancer mount bolt.
d.
Allow balancer to rotate down.
e.
Continue with step 5 below.
5.
Using the controls slowly raise the wire rope checking for
frays in the same manner as the end of arm. IF THE RAG
SNAGS ON THE ROPE CHECK FOR FRAYING AND
REPLACE AS NECESSARY WITH APPROVED
INGERSOLL-RAND REPLACEMENT PART.
6.
Ensure the mark placed on the rope passes across the rag to
verify the entire length has been inspected.
IF THE MARK ON THE ROPE DOES NOT PASS THE
RAG.
7.
Use a flashlight and inspection mirror to access the wire rope
throught the centerlink openings at the pulleys. IF THE
ROPE APPEARS TO BE FRAYED OR DAMAGED IN
ANYWAY; REPLACE AS NECESSARY WITH
APPROVED INGERSOLL-RAND REPLACEMENT PART.
The wire rope should inspected daily to ensure the maximum
safety.
If one strand of wire is broken on any given bundle replace the
wire rope.
Units Not in Regular Use
1.
Units which have 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.
Units which have 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 units should be inspected at least semiannually in
accordance with the requirements of "Frequent Inspection".
In abnormal operating conditions, units should be inspected
at shorter intervals.
MHD56162 - Edition 2
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