Ingersoll Rand ZA Série Manuel Du Produit page 6

19. Rotate LO-LOAD flow control clockwise until load is balanced.
20. Tighten jam nut to maintain proper setting.
21. Lift load to full up position.
22. Rotate pendant to UN-LOAD position.
23. Slowly rotate UN-LOAD flow control counterclockwise until load drifts to the
floor or full down position. Allow wire rope to go slack.
24. Remove medium weight load from tooling or handling device.
25. Rotate UN-LOAD flow control clockwise until tooling or handling device is
balanced.
26. Maneuver tooling or handling device to heaviest load and engage load.
27. Rotate pendant to HI-LOAD position.
28. The load should be in balance.
29. Set down the heaviest load and rotate pendant to UN-LOAD position.
30. Maneuver tooling or handling device to medium weight load and engage load.
31. Rotate pendant to LO-LOAD position.
32. The load should be in balance.
33. Set down medium load and rotate pendant to UN-LOAD position.
• If, for any reason, the pilot regulator must be readjusted, the needle valves
will have to be adjusted also.
n
Operational Adjustments EA 2PS
Refer to Dwg. MHP1915 in the Parts Information Manual.
• The balancer may not support the weight of the empty handling device, or
may raise device at a potentially hazardous rate. Extreme care must be used
until control adjustments are complete.
1. Install regulator and 2PS valve to balancer.
2. Rotate regulator adjustment knob counterclockwise until 1/2 in. (13 mm) of
thread is visible.
3. Rotate trim valve clockwise until snug, then counterclockwise 2 full turns.
Refer to Dwg. MHP1920 in the Parts Information Manual
1. Raise handling device/fixture to a mid travel position, so balancer is supporting
the entire weight. The Interlock screw threads into the aluminum housing that
will rotate with the screw. Hold aluminum housing while turning the screw.
2. Turn screw counterclockwise until interlock light illuminates (green light) or until
1-1/2 in. (38 mm) of thread is visible.
3. Depress and release (repeatedly) the clamp/vacuum release button while
rotating Interlock screw clockwise until clamp opens or blow off air is heard at
vacuum cups or interlock indicator extinguishes.
4. Raise and lower handling device/fixture several times. Check for proper
operation of clamp and vacuum controls.
5. Raise handling device/fixture to the full up position.
6. Depress and hold up lever of the ZA control for three seconds. This will simulate
an additional load on the balancer.
n Lash-Up
To properly install load hook to wire rope you must determine the following:
Refer Dwg. MHP1358 on page 11, A. Obstruction.
Refer Dwg. MHP1924 on page 11, A. Load.
1. Highest point which load must clear from floor.
2. Distance from hook throat to bottom of load.
3. Add number 1 dimension to number 2 dimension, then add 3-1/2 in. (89 mm).
4. Measuring from the floor with the wire rope fully retracted, install hook using
the dimension from number 3 to the floor.
5. Verify coverage is correct. Use wire cutter part number 01942 to remove excess
wire rope.
• Do not operate balancer if load is not centered under wire rope. Yarding of
the wire rope will cause premature wire rope failure and undue wear of
internal balancer parts and may void warranty.
• Do not continuously rotate balancer in one direction. Air line damage will
occur from continuous rotation potentially allowing the load to lower.
Reverse direction with each cycle of the balancer to prevent twisting and
damage to air lines.
n Yarding
Wire rope should not be yarded more than 10 degrees from vertical center line of
wire rope guide. Excessive Yarding will cause increased wear on balancer and
decrease working life of components.
n Wire Rope Guide
Refer to Dwg. MHP1925 on page 12, A. Correct; B. Incorrect; C. Wire Rope Guide.
6
NOTICE
WARNING
INTERLOCK ADJUSTMENTS
LOAD HOOKS, LASH-UP AND YARDING
CAUTION
4. Rotate auxiliary flow valve clockwise until snug, then counterclockwise until 1/8
in. (3.2 mm) of screw head protrudes from side of regulator body.
5. Rotate 2PS-flow control clockwise until snug, then counterclockwise 1 turn.
6. Ensure tube is connected at the 2PS valve and handling device.
7. Turn on main air supply. Adjust regulator to required air pressure.
8. Rotate adjustment knob clockwise slowly until wire rope begins to raise, move
to the full up position, ensure the Z-Brake does not engage.
9. Install load hook and tooling or handling device to wire rope in required position.
Refer to "Lash- Up" Section on on page 6.
10. Engage load with tooling or handling device.
11. Rotate regulator adjustment knob clockwise until load is balanced.
12. Lift and lower load several times. Equal effort should be required to raise and
lower load. If load is hard to pull down turn trim valve clockwise 1/2 turn and
check. If load is hard to raise turn trim valve counterclockwise 1/2 turn and check.
13. Lower part to set down position. Rotate 2PS-flow control counterclockwise one
full turn. Tooling or handling device may raise or lower unexpectedly when part
is released. Ensure you are clear of the vertical path at all times during
adjustments.
14. Release part from tooling or handling device. Rotate 2PS-flow control
counterclockwise if tooling or handling device raises or counterclockwise if it
lowers until tooling or handling device is balanced.
15. Lift and lower load several times. Equal effort should be required to raise and
lower load. If load is hard to pull down, turn 2PS-flow control counterclockwise
1/2 turn and check. If load is hard to raise turn trim valve clockwise 1/2 turn and
check.
16. Engage and disengage the part checking the balance condition of both the
loaded and unloaded tooling or handling device.
n Tandem Control Balancer
n
Tandem Control Installation
Refer to Dwg. MHP1923 in the Parts Information Manual
1. Install master manifold (1) behind EA, ZA or BA control kit.
2. Install slave manifold (2) to second balancer.
3. Install tandem hose assembly (10) between master (1) and slave (2) manifolds.
7. Depress and release clamp/vacuum release button. Clamp should remain closed
or not blow off air to vacuum cups.
8. Check that interlock indicator has illuminated (green light).
9. Lower handling device/fixture and engage a part with the end effector.
10. Raise load 1 in. (26 mm) above pick up point.
11. Depress and release clamp/vacuum release button. Part should remain attached
to end effector.
12. Lower handling device/fixture and release part at the pick up point.
13. Hold aluminum housing and tighten jam nut on Interlock screw to prevent
setting from changing.
n Hook Assembly
Refer to Dwg. MHP1926 and MHP3219 on page 12.
n
Assembly
Refer to Dwg. MHP3219 on page 12. A. Heat Shrink Tubing; B. Dead End; C. Live
End; D. Dead End.
1. Cut wire rope to desired length for drop, allowing for up to a foot (12 in.) extra,
to wrap around the thimble.
2. Install hook (1) in seat of thimble (2).
3. Install heat shrink tubing (5) on to dead end of wire rope, ensure shrink tubing
is pushed up far enough to allow wrap around thimble and addition of clamp.
4. Wrap wire rope around thimble (2). Wire rope should be securely seated in
groove.
5. Place both halves of clamp around wire rope and loosely secure with first
capscrew, but do not tighten. Ensure wire rope is secure between both halves
and a minimum of 1 in. of extra wire rope at dead end is extended past clamp.
6. Take up slack of wire rope around the thimble. Ensure wire rope is seated in
center of clamp.
7. Install second capscrew and alternately tighten capscrews, torque to 7 ft. lb.
• When assembled both halves of clamp should not meet when torqued to
the proper value. Clamp is designed for a wire rope diameter of 5 mm.
• If both halves are flush against each other a smaller size of clamp is
necessary.
8. Secure dead end of wire rope with electrical tape to keep it from fraying.
9. Slide heat shrink tubing, over dead end of wire rope, ensure it seats close to
clamp.
10. Apply heat (140 degree C maximum) evenly around the shrink tubing until tube
is takes form of the wire rope end. Allow the shrink wrap to cool and harden.
CAUTION
Form 54072541 Edition 11