Ingersoll Rand B Serie Especificaciones Del Producto página 6

EN
Regulator Installation
Refer to Dwg. MHP1909 in the Parts Information Manual.
Place balancer on a clean, sturdy work surface with end cap upright. Pull out wire rope until reel bottoms out. Remove BA control kit from
package, check to ensure that O-ring is in correct position on back of EA regulator (2). Install regulator on end cap with four mounting screws
and lockwashers (3, 4 and 5).
Control kit is supplied with a coil hose assembly (6). Connect coil hose to "A" port of regulator.
Operational Adjustments
Refer to Dwg. MHP1909 in the Parts Information Manual.
Prior to performing operational adjustment or servicing make sure air supply is off and wire rope is slack.
A minimum of 70 psi (4.8 bar) is required to operate the regulator.
1. Install regulator to balancer.
2. Install Z-Servo as close to but below the ball stop.
3. Rotate regulator adjustment knob counterclockwise until 1/2 in. (13 mm) of thread is visible.
4. Rotate trim valve clockwise until snug, then counterclockwise 2 full turns.
5. Rotate auxiliary flow valve clockwise until snug.
6. Turn on main air supply. Adjust regulator to required air pressure.
7. Rotate adjustment knob clockwise slowly until wire rope begins to raise, move to the full up position, ensure Z-Brake does not engage.
Auxiliary flow valve is fully open when 1/8 in. (3.2 mm) of screw head protrudes from regulator body. Do not open beyond this point.
Up and down speed should be the same for ease of adjustment.
8. Install load hook and tooling or fixture to wire rope in the required position. Refer to "Lash-Up" Section on page 8.
9. Rotate regular adjustment knob clockwise until load raises to the full up position. The speed should be relatively slow. Pull down and release
the load and check the speed.
10. Connect black tube to the "A" port on the regulator.
11. Rotate auxiliary flow valve counterclockwise until lowering speed is the same as the lifting speed. "Pinching" off the black tube will
pressurize regulator to raise the load.
12. Raise and lower load two or three times to verify speeds are the same. If speed in one direction is much faster than the opposite direction
the load will be difficult to move and may provide erratic operation.
13. Pinch off black tube and connect free end to the Z-Servo fitting.
14. Turn adjusting nut at the top of the servo until load is balanced. Rotating nut clockwise will increase balance setting or raise the load.
Counterclockwise rotation of the nut will reduce balance setting and lower the load.
15. Lift and lower the load several times. Equal effort should be required to raise and lower the 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.
A small volume of air will exhaust at the Z-Servo while in operation.
Z-Servo Wire Rope Installation
Refer to Dwg. MHP1354 on page 14, A. Adjusting Nut; B. Air Exhaust; C. Wire Rope.
1. Mount balancer on overhead suspension.
2. Position Z-Servo below travel range of wire rope.
3. Insert wire rope through top hole in Z-Servo. Install two clamps on wire rope 1-1/2 in. (38 mm) above top of Z-Servo and 1-1/2 in. (38 mm)
apart. Leave 16 in. (40.64 cm) of wire rope free for Z-Servo to operate properly.
4. Insert wire rope through bottom hole in the Z-Servo. Install 2 clamps on wire rope 1-1/2 in. (38 mm) apart.
5. Install load hook.
You must leave enough slack in the wire rope to allow proper operation of the Z-Servo balancer.
Z-Servo Control
Refer to Dwg. MHP1910 in the Parts Information Manual.
The regulator is the primary control for the BA system. The Z-Servo bleeds off air. Therefore it works like an amplifier. If the pilot regulator must
be readjusted for any reason, the auxiliary flow, trim valve and Z-Servo must be readjusted.
Series EA Balancer
Refer to Dwg. MHP1911 in the Parts Information Manual.
EN-6
WARNING
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CAUTION
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