If the deflection roller is damaged, it must be replaced.
Only with hoist drive
GM 5000 or GM 6000 with reeving 4/2 or 6/2
The procedure for replacing the deflection rollers on a wire
rope hoist with one deflection roller (reeving 4/2) is shown below. The
replacement procedure does not differ significantly for wire rope hoists with
two deflection rollers (reeving 6/2).
Disassembling
the deflection roller
|
|
|
Rib
screw |
Retainer |
Loosen the rib screws on the
retainer.
|
Retainer |
Deflection roller |
|
|
Remove the retainer from the
deflection roller.
|
Rib
screw |
Bracket |
|
|
|
|
Measurement bolt |
Unscrew the measurement bolt
bracket.
|
|
Deflection roller |
|
|
|
Crosshead |
Measurement bolt |
Pull the measurement bolt out of
the crosshead and deflection roller.
|
|
Deflection roller |
|
|
|
Crosshead |
|
Lift the deflection roller out
of the crosshead.
If the bearing bushes are damaged:
|
Crosshead |
Bearing
bush |
|
|
Pull the bearing bushes out of
the crosshead.
Assembling the
deflection roller
If the bearing bushes are damaged:
|
Crosshead |
Bearing
bush |
|
|
Insert the bearing bushes into
both sides of the crosshead.
|
Measurement bolt |
Bearing
bush |
|
|
Grease the measurement bolt.
Lubricant: “High temperature paste PBC 1574”. For details, see
Lubricants.
Slide the measurement bolt into
one side of the bearing bush.
Do not slide the measurement bolt fully into the crosshead.
Note
|
|
|
|
Arrow |
The arrow on the measurement bolt must be pointing
downwards.
|
|
Deflection roller |
|
|
|
Crosshead |
Measurement bolt |
Insert the deflection roller
into the crosshead.
|
|
Deflection roller |
|
|
|
Crosshead |
Measurement bolt |
Slide the measurement bolt
through the deflection roller and into the other bearing bush.
The measurement bolt ends up flush with the bearing bushes on
both sides.
|
Rib
screw |
Bracket |
|
|
|
|
Measurement bolt |
Screw the brackets in place on
both sides with rib screws (3x).
|
Screw |
Type |
Tightening torque |
|
Rib screw |
M8x16 |
42 Nm |
|
Rib screw |
M10x20 |
75 Nm |
|
Retainer |
Deflection roller |
|
|
Place the retainer over the
deflection roller.
|
|
|
Rib
screw |
Retainer |
Screw on the retainer with rib
screws M10x20 (2x). 75 Nm.
Only with hoist drive
GM 5000 or GM 6000 with reeving 8/2
For a reeving 8/2 with a hoist drive GM 5000 or
GM 6000, three deflection rollers are installed in the trolley frame.
Disassembling
the deflection roller
|
|
|
Rib
screw |
Loosen the rib screws (6x) on
the retainers.
|
|
Deflection roller |
|
|
|
Retainer |
|
|
|
|
Remove the retainers from the
deflection rollers.
On the side with the anti-rotation device:
|
Cover |
Anti-rotation device |
|
|
|
Rib
screw |
|
Release the rib screws (3x).
Remove the anti-rotation device
and cover from the measurement bolt.
|
|
Deflection roller |
|
|
|
Measurement bolt |
|
Pull the deflection roller
sideways off the measurement bolt and lift it out of the trolley frame.
On the side with the measurement bolt connection:
|
Rib
screw |
Deflection roller |
|
|
|
|
Cover |
Loosen the rib screws on the
cover of the measurement bolt.
|
|
|
Measurement bolt connection cable |
Cover |
Remove the cover from the
measurement bolt.
Unscrew the measurement bolt
connection cable.
|
Deflection roller |
|
|
|
|
|
Measurement bolt |
Pull the deflection roller
sideways off the measurement bolt and lift it out of the trolley frame.
|
|
Deflection roller |
|
|
|
Crosshead |
Measurement bolt |
Pull the measurement bolt out of
the crosshead and lift the deflection roller out of the crosshead.
If the bearing bushes are damaged:
|
Bearing
bush |
Crosshead |
|
|
Pull the bearing bushes out of
the crosshead.
Assembling the
deflection roller
If the bearing bushes are damaged:
|
Bearing
bush |
Crosshead |
|
|
Insert the bearing bushes on
both sides in the crosshead.
|
Crosshead |
|
|
|
Bearing
bush |
Measurement bolt |
Grease the measurement bolt.
Lubricant: “High temperature paste PBC 1574”. For details, see
Lubricants.
Slide the measurement bolt back
and forth through the bearing bushes in the crosshead to distribute the
lubricant within the bearing bushes.
|
|
Deflection roller |
|
|
|
Crosshead |
Measurement bolt |
Pull the measurement bolt far
enough out of the crosshead that the deflection roller can be inserted centrally
in the crosshead.
Insert the deflection roller
into the crosshead.
|
Deflection roller |
Crosshead |
|
|
|
Measurement bolt |
|
Slide the measurement bolt
through the crosshead and the deflection roller.
Note
|
|
|
|
Arrow |
The arrow on the measurement bolt must be pointing
downwards.
|
Deflection roller |
|
|
|
|
|
Measurement bolt |
Slide the second deflection
roller onto one side of the measurement bolt.
|
|
Deflection roller |
|
|
|
Measurement bolt |
|
Slide the third deflection
roller onto the other side of the measurement bolt.
The measurement bolt ends up flush with the bearing bushes on
both sides.
On the side with the measurement bolt connection:
|
|
|
Measurement bolt connection cable |
Cover |
Slide the measurement bolt
connection cable through the middle hole in the cover.
Screw in the measurement bolt
connection cable.
Slide the cover onto the
measurement bolt.
|
Rib
screw |
Deflection roller |
|
|
|
|
Cover |
Bolt the cover to the
measurement bolt using rib screws M10x25 (2x). 75 Nm.
On the other side of the measurement bolt:
|
Cover |
Rib
screw M10x20 |
|
|
|
Rib
screw M10x25 |
Anti-rotation device |
Bolt the cover and anti-rotation
device to the measurement bolt using rib screws M10x25 (2x). 75 Nm.
Bolt the anti-rotation device to
the crosshead with rib screws M10x20. 75 Nm.
|
|
Deflection roller |
|
|
|
Retainer |
|
|
|
|
Slide the retainers over the
deflection rollers.
|
|
|
Rib
screw M10x20 |
Screw on the retainer with rib
screws M10x20 (6x). 75 Nm.
Only with wire rope hoist
with hoist drive GM 7000
The procedure for replacing the deflection rollers on a wire
rope hoist with two deflection rollers (reeving 6/2) is shown below. The
procedure for performing the replacement on a wire rope hoist with one or more
deflection rollers does not differ significantly from this.
|
|
Plate |
|
|
|
Rib
screws M10x16 |
Release the rib screws M10x16
(4x) on the plate.
Lift the plate off the trolley
frame.
|
|
|
Deflection roller crosshead |
Suspension |
Lift the deflection roller
crosshead out of the trolley frame.
Disassembling
the deflection roller
On a wire rope hoist with hoist drive GM 7000, the
deflection roller is secured on the deflection roller using a bolt with a
cover.
|
Rib
screw |
|
|
|
|
Cover |
|
Release the rib screws (2x) on the
cover.
Take the cover off the
deflection roller crosshead.
|
Deflection roller crosshead |
Bolt |
|
|
|
Deflection roller |
|
Pull the bolt out of the deflection
roller crosshead and deflection roller.
Pull the deflection roller out
of the deflection roller crosshead.
Assembling the
deflection roller
Push the deflection roller into the
deflection roller crosshead.
|
Rib
screw |
|
|
|
|
Cover |
|
Screw the cover tight with the
rib screws M10x20 on the bolt. 75 Nm.
Mounting the
deflection roller crosshead
Push the washer (2x) onto both
bearing bushes.
|
|
|
Deflection roller crosshead |
Suspension |
Lift the deflection roller
crosshead into the trolley frame.
Repeat the process for the other
deflection roller crossheads.
|
|
Plate |
|
|
|
Rib
screws M10x16 |
Place the plate on the trolley
frame over the deflection roller crossheads and screw in with rib screws M10x16
(4x). 75 Nm.
