Adjustment Procedure - Ingersoll Rand M Serie Manual De Instalación Y Operación

Safety Retraction System Adjustments
• Be sure air supply is off and wire rope has slack.

Adjustment Procedure

1. Remove the unit from the overhead suspension.
2. Place the unit on a clean, dry work bench.
3. Remove the control regulator from the unit.
4. Stand the unit on the end cap (control end).
5. Loosen the hex bolt in the center of the end cover.
6. Remove the bolts around the diameter of the housing.
7. Remove the center bolt from the end cover.
8. Remove the end cover assembly.
• Note the position of the bearing retainer between the end
cover and the ball screw. Bearing retainer not required for
the 91 kg (200 lb.) unit.
9. Place the end cover on the work bench so that the rods are
pointing up.
10. With needle nose pliers remove the end of the spring on the
brake shoe and place in desired hole. The farther from the
center of the unit the spring is set the less sensitive it will
become.
Reassembly
1. Place the unit on its side so the wire rope guide is facing
you.
2. With your fingers, rotate the reel so it moves toward the end
cover. The wire rope or chain will retract.
3. Hold the end cover and align the rods with the holes in the
reel. The 68 kg (150 lb.) unit has only 1 rod.
• Be sure the bearing retainer is in place between the ball
screw and the brake assembly.
4. Slide the rod(s) and end cover assembly into the hole(s) in
the reel until the 7.1 mm (9/32 in.) diameter holes in the
housing and the anti-rotation notches on the ball screw line up with the pins in the end cover.
5. Install the bolts on end cover outside diameter.
6. Install the end cover center bolt and torque to 12.4 to 13.8 kg. m (90 to 100 ft/lb.).
7. Install controls and perform operational adjustments as necessary.
WARNING
NOTICE
NOTICE
91, 158, 227 kg
(200, 300, 500 lb.) Unit
Spring
Hole #2
(Dwg. MHP1369)
68 kg (150 lb.) Unit
Hole #1
(Dwg. MHP1370)
14
Brake Shoe