Product Description; Typical Cross Section Of A Balancer - Ingersoll Rand ZA Serie Manual Del Usuario

Only allow trained technicians to perform maintenance on this product. For additional information contact
Ingersoll Rand
Distributor.
For additional supporting documentation refer to Table 1 'Product Information Manuals' on page 2.
Manuals can be downloaded from www.ingersollrandproducts.com.
The use of other than genuine Ingersoll Rand replacement parts may result in safety hazards, decreased performance and increased maintenance and will invalidate all warranties.
Original instructions are in English. Other languages are a translation of the original instructions.
Refer all communications to the nearest Ingersoll Rand Office or Distributor.
Table 1: Product Information Manuals
Publication
Product Safety Information Manual
Product Parts Manual
n Description
Balancers contain a stationary ball screw. The ball screw is held in position by two
hex head bolts (through the end cap and end cover). Two pins in the end cover engage
notches on the end of the ball screw to prevent it from rotating. The reel assembly,
consisting of reel, ball nut and thrust bearing, rides on the ball screw. The piston
contacts the thrust bearing and travels back and forth with the reel assembly. The
piston does not rotate.
Compressed air powers the balancer. It is controlled by an external control package.
Air enters or leaves the piston chamber through a single hole in the end cap. This
compressed air causes the piston to move laterally. The piston pushes against the
thrust bearing causing the reel to move laterally along the ball screw and winds up
the wire rope. The load or hook travels down when the air is exhausted from the piston
chamber through the control package to atmosphere.
The Balancer achieves maximum capacity at 100 psi, as the line pressure reduces so
will the operating capacity of the Balancer. For every one psi reduction in air pressure
there is a 1% reduction in overall capacity.
If the balancer has no load attached, it may be necessary to pull down on the load
hook to lower.
The 500 lb. (227 kg) balancer is designed to hang at a 3 degree angle with the controls
end lower than the end cover.
n Typical Cross Section of a Balancer
Refer to Dwg. MHP1350 on page 11, A. Down Stop (optional); B. Reel; C. Ball Nut;
D. Ball Screw; E. End Cover; F. Brake; G. Housing; H. Housing Liner; I. UP; J.
Down;K. Rotation; L. Air Pressure; M. End Cap;N. Seal; O. Ball Screw Cap; P. Thrust
bearing; Q. Piston Chanber;R. Piston; S. O-Ring; T. Reeved Eye pad (Std. on 254
mm (10 in.) Housing only).
2
Part/Document Number Publication
16598831 Product Maintenance Information Manual
16598849

PRODUCT DESCRIPTION

factory or nearest
Ingersoll Rand
Part/Document Number
16598856
Form 54072541 Edition 8