Ingersoll Rand ZA Série Manuel Du Produit page 7

• Do not use a torch or any flame to shrink tubing. Use of a torch or flame
could cause damage to the live end of wire rope.
11. Capscrews must be retightened again:
n Load Block Installation
Refer to Dwg. MHP1363 on page 12, A. Load Block, Single Sheave Cable; and
MHP1364 on page 12, A. Load Block, Double Sheave Cable;
1. Thread wire rope through and around pulley(s) in Load Block.
2. Bring excess wire rope back up to bottom eye pad of balancer.
• Clean, dry air must be used at all times when operating balancers.
n Preventive Maintenance
Preventive maintenance recommendations are designed to prevent unexpected
breakdowns and problems through periodic inspection and maintenance.
Maintenance intervals should be based on frequency of usage and operating
environment. Frequent usage, or dirty operating conditions require more frequent
servicing. A clean, dry air supply will help keep the equipment functioning properly.
Refer to "INSPECTION AND MAINTENANCE REPORT" on page 9. Using this report
will aid in tracking component failures or faults. We recommend the use of this report
as a preventive maintenance tool.
n
Wire Rope and Load Hooks
Wire rope, load hooks and clamps should be inspected on a daily basis. Time intervals
should be based on the frequency of usage and in accordance with standard wire
rope manufacturers specifications. Refer to "PREVENTIVE MAINTENANCE
SCHEDULE" on page 8.
n
Wire Rope Inspection
1. Depress the down lever to lower the load to the bottom of balancer travel.
2. Use a gloved hand to carefully slide up the rope, if the glove snags on the wire
rope refer to "PREVENTIVE MAINTENANCE SCHEDULE" on page 8.
3. Check entire length of rope up to the wire rope guide.
4. Replace wire rope if found faulty.
n
Load Hook Inspection
1. Top bail of hook swivels freely.
2. Tip of hook aligns with the self-closing gate.
3. No more than 10% wear is allowed at the base of the hook.
4. No more than 5% wear in all other areas.
5. Quic-Check® marks must align with a half-inch increment.
n Balancer Lubrication
n
Basic Balancer
There are only three moving parts (ball nut, thrust bearing and piston) inside the
balancer that require periodic cleaning and lubrication. Cleaning usually requires
complete disassembly of the balancer and a thorough washing in a solution, such
as mineral spirits.
• Special lubricants mentioned in the reassembly instructions are
recommended for balancers and are available through Ingersoll Rand.
Form 54072541 Edition 11
WARNING
PREVENTIVE MAINTENANCE CHECKS AND SERVICE
CAUTION
NOTICE
- 1 hour after installation.
- 2 times during first 24 hours, at reasonable breaks.
- Approximately 1 month after installation.
Note: Hook shown is the spring lock. Refer to Product Parts Information Manual for
other hook options.
LOAD BLOCKS
3. Install thimble on eye pad.
4. Loop wire rope around thimble.
5. Tighten wire rope and install clamps.
• Balancers using load blocks should not have ball stops on wire rope.
Lubrication can be accomplished by partial disassembly of balancer while still on
the overhead rail as follows:
1. On series EA and BA balancers, turn pilot regulator screw (counterclockwise)
until wire rope is slack. On series ZA balancers, depress down lever until wire
rope is slack.
2. Remove load from balancer.
3. Turn off air supply.
4. Remove wire rope guide, end cap and piston. Refer to section Balancer Rebuild
Disassembly steps 4 - 7 in Maintenance Information Manual for removal of end
cap.
5. Using a paint brush (or a similar object) reach through the wire rope window in
the housing and apply approximately a tablespoon of lubricant (10886) to ball
screw.
• Lubricant (10885) must be used in 500 lb. (227 kg) Balancer.
6. Using a clean rag, wipe off piston, cylinder bore of housing and ball screw cap.
7. Apply lubricant (10885) to cylinder bore and outside diameter of ball screw cap.
To reassemble refer to section Balancer Rebuild Assembly steps 6 - 14 in
Maintenance Information Manual.
8. Attach control package to end cap. Turn on air.
9. Readjust balancer, per Control Operational Adjustments.
n
Air Supply
Be sure that air supply is free of rust, dirt, water and oil. Use of a good air filter and
in-line regulator is highly recommended. 100 psi (6.9 bar) is required to operate
balancer at its maximum capacity. Lower pressure reduces balancer capacity
accordingly. Do not use an air in-line oiler. Oil will damage balancer and controls.
n Balancers Not in Regular Use
1. Balancers 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
"Preventive Maintenance" prior to being placed into service.
2. Balancers 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 balancers should be inspected at least semiannually in accordance with
the requirements of "Preventive Maintenance". In abnormal operating
conditions balancers should be inspected at shorter intervals.
CAUTION
NOTICE
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