MAN16MG05
instructions
for
use
series
drh
1/2/3/4 -
dst
/
n
/
s
-
dst
/
r
-
drt
122
6.6.6 Replacing the wheels on the DRT double girder trolleys
• Position the double girder trolley onto a base which allows for sufficient space to slide out the wheels from the
frame.
• Remove the gear motor
-1-
unscrewing the nut
-2-
from the screw
-3-
and extracting the screw and grover
-4-
as
well as the shock absorbers and related washers, sliding it off the drive shaft
-5-
.
• Extract the drive shaft
-5-
from the traction wheel
-6A-
.
• Remove the wheel support units
-7-
unscrewing the screws
-8-
on the wheel
-6A-
sustaining it before extracting it
from the frame.
• Remove the drive shaft
-5-
.
• Remove the wheel support units
-7-
unscrewing the screws
-8-
on the wheel
-6B-
sustaining it before extracting it
from the frame.
• Assemble the new wheel
-6B-
, reassembling the wheel support units
-7-
by fastening them with the screws
-8-
.
• Slide the drive shaft
-5-
onto the wheel
-6B-
making certain to have previously inserted the internal wheel support
-7-
onto the wheel
-6A-
.
• Assemble the new wheel
-6A-
,reassembling the wheel support units
-7-
by fastening them with the screws
-8-
.
• Insert the drive shaft
-5-
onto the wheel
-6A-
.
• Reassemble the gear motor
-1-
onto the drive shaft
-5-
, blocking it in place with the screws
-4-
, then replace the
screw
-3-
and nut
-2-
as well as the shock absorbers and washers, compressing the absorber pads by approximately
2 mm in total (1+1).
• Reinstall the hoist/trolley onto the running girders as outlined at section 4.4.4.
This operation must be carried out by priorly disassembling the hoist/trolley from the girder on which
it is installed
(see section 6.5)
.
It is advisable to replace all four wheels, even if one or more of them may appear to be in good
condition.
In addition, evaluate whether the drive shaft needs replacing as well.
To replace the wheels, proceed as follows:
(fig. 221)
fig. 221
3
7 8
8
8
7
7
7
1
8
5
4
6A
2
6B
123
instructions
for
use
series
drh
1/2/3/4 -
dst
/
n
/
s
-
dst
/
r
-
drt
MAN16MG05
6.6.7 Replacing the hook side cheek of the hook block
Replacing the hook side cheek of the hook block for 2-rope fall hoists (fig. 222)
• Remove the label plate
-1-
before removing the fixing rivets (with a drill and tip Ø 3 mm).
• Remove the screw
-2-
and the clip
-3-
.
• Remove the snap ring
-4-
.
• Take off the transverse support
-5-
.
• Take off the hook side cheek
-6-
.
• Install the new hook side cheek with the procedure in reverse.
• Fix the label plate on the transverse support with 4 rivets Ø 3x7 mm
Replacing the hook side cheek of the hook block for 4-rope fall hoists (fig. 223)
External hook side cheek
• Remove the label plate
-1-
before removing the fixing rivets (with drill and tip ø3 mm).
• Remove the screw
-2-
and the clip
-3-
.
• Remove the external hook side cheek
-4-
.
• Install the new hook side cheek with the procedure in reverse.
• Fix the label plate on the hook side cheek with 4 rivets Ø 3x7mm.
Internal hook side cheek
• Remove the label plate
-1-
before removing the fixing rivets (with a drill and tip ø3 mm).
• Remove the screw
-2-
and the clip
-3-
.
• Remove the external hook side cheek
-4-
.
• Take off the pulley
-5-
.
• Remove the internal hook side cheek
-4-
.
• Install the new hook side cheek with the procedure in reverse.
• Fix the label plate on the hook side cheek with 4 rivets Ø 3x7mm.
Carry out the operation with the hook block dismantled from the hoist.
For the dismantling and the reassembling of the hook block, see paragraph 6.6.1.
To be able to carry out the following operations, the following are needed:
• Portable drill with ø 3 mm point for removing aluminium rivets
• Riveter for fixing plates with ø 3x7 mm rivets
fig. 222
fig. 223
4
1
3
5
6
2
3
1
4
5
4
2
KMAN16MG05
Содержание DRH 1 Series
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