Textron PT-3500, Operator'S Manual

Page: 102 / 136

Revolution Series PT-3500 / PT-7500 Puller Tensioner Page 94
Maintenance
Drum/Reel Drive Assembly
The PT-7500/3500 puller/tensioners both employ a fully hydraulic direct drive system. This drive
system consists of hydraulic motor(s) and drive shaft, bar, and pins. The drive shaft, bar, and pins
are connected directly to the drum or reel, making the drum/reel the final link in the direct drive
system.
Drive Shaft
The drive/drum shaft should be inspected as
part of the Pre-Operation Checklist.

The drive shaft must be inspected for
bending or damage each time the
drum/reel is changed, as well as prior to
operations.

Ensure that the drive shaft cones and set
collars are installed and secured
- (see Drive
Shaft Cones and Set Collars section)
.

The drive shaft must also be inspected to
ensure that it is secured properly to the
drive couplings before each operating
period-
(see Pre-Operation Checklist section).
If excessive wear is found the part should
be replaced prior to operation-
contact
Reilly Service Department for
service
-
(see Service & Repair section)
.
Drive Shaft Cones and Set Collars
Drive shaft tapered cones are installed on
both sides of the drive shaft to prevent
uneven gaping between the drum/reel and
the drive shaft, thereby eliminating drum hop
during shaft evolutions. Drive shaft cones
should always be secured to the drive
shaft/drum when conducting operations.
There are also set collars installed to the side
of the drum opposite to the drive bar. These
collars hold the drum snug to the drive bar.

Drive shaft cones and set collars should be
inspected as part of the pre-operation
inspections to ensure that they are in
place and secured, with no signs of
damage.
Set Collars
WARNING: Loss of Limb/Death : System must be off and tagged out prior to attempting any maintenance on the
drive assembly
.
CAUTION : If any component of the drive system is
damaged during pulling or tensioning operations
due to excessive force or through some other non-
operational related incident, then the entire drive
system- (motor, couplings, pins, bar, etc.) and
machine frame should be inspected to ensure no
other damages exist prior to operations.
Shaft Cone
Shaft Cone