Asco Joucomatic 448 Serie Puesta En Marcha Y Consejos De Utilización página 11

GB
For fitting and removal of the guide system the complete cylinder
unit should be removed from the machine or plant.
Dismantling of the Guide Carriage
1. Depressurize the cylinder and switch off all electrical power supply.
2. Remove all parts mounted externally on the guide carriage (11).
3. Unscrew one drive block (16) from piston of cylinder, so that the
guide carriage can be moved.
4. For diameters 40 to 80 only: unscrew one end cap from the cylinder.
5. Loosen screws (6) on wiper cover (17).
6. Slide the complete guide carriage off the guide rail.
7. Unscrew wiper cover (7) (or 17+18 for diameters 63 and 80) from
both ends of the guide carriage (11).
8. Inspect the parts – replace damaged or worn parts such as: wiper
(9), slide profile (10) and felt (8) (service kit).
Dismantling and Reassembly of the Guide Rail
1. To dismantle the guide rail (1) remove the screws (4) with their
washers (3). Remove the guide rail (1) and clamping rail (2) from
the cylinder profile.
2. Clean all the parts.
3. Centre the guide rail on the cylinder profile.
4. Fit the clamping rail (2) to the guide rail (1) and screw in the screws
(4) with their washers (3) (use the specified torque).
Reassembly of the Guide Carriage
1. Clean all the parts.
2. Grease the felts (8) with guide grease.
3. Lay the wipers (9) or (21+22) and felts (8) in the wiper covers. The
sealing lip of the wiper must be outwards (see drawing).
4. Back off the adjusting screws (14) in the guide carriage.
5. Lay in the support strip (5) on the same side as the adjusting
screws.
6. Place 2 slide profiles (10) per side in the guide carriage.
The edges of the slide profiles in which grooves are cut (to allow
grease from the grease nipples to get to the guide rail) must touch
each other.
7. Screw on the two wiper covers (7) or (17+18) loosely with the
screws (6).
Ø 16 to 50 mm
Torques for Screws
Item Ø16 Ø25
4 3 Nm 3 Nm
6 3 Nm 5.5 Nm
14 1.2 Nm 3.5-4 Nm
15 4.5 Nm 9 Nm
19 -
OPERATING INSTRUCTIONS FOR STB CYLINDER
Ø32 Ø40
3 Nm 10 Nm
5.5 Nm 5.5 Nm
3.5-4 Nm 3.5-4 Nm
14.5 Nm 14.5 Nm
- - -
Ø 63 to 80 mm
Remounting the Reassembled Guide Carriage on the Guide Rail
1. Push the complete guide carriage assembly carefully onto the guide
rail with the side with the adjusting screws towards the piston.
2. If necessary move the felt wiper carefully into its correct position
with a screwdriver.
Adjustment of Play and Final Assembly
1. Tighten the self-locking adjusting screws (14), individually from
the middle working outwards, with the specified torque. If non-self-
locking screws are used (14), use a locking medium (Loctite low-
strength is recommended) and tighten the screws from the middle
working outwards until the guide carriage can no longer be moved
by hand.
2. Tap the sides of the guide carriage (11) gently with a rubber hammer
until the slide profiles (10) have settled into position and then tighten
all the adjusting screws (14) again (see above).
3. Loosen all the adjusting screws (14) about 1/4 to 1/2 turn
individually from the middle working outwards.
When correctly adjusted the guide carriage should be easily
movable by hand but with no play.
4. Tighten the screws (6) in the wiper cover (7) or (17+18) with the
specified torque.
5. Position the guide carriage centrally over the cylinder piston and
secure the drive blocks (16) with the washers (13) and screws
(15).
Note: The drive blocks (16) must be fitted against the guide
carriage with no play (11) !!! Note the high torque required !!!
6. Refit the end cap of the cylinder if applicable.
Lubrication
All unused threaded holes in the guide carriage (11) must be plugged
with set screws (12) to prevent escape of lubricant. The grease nipples
on both sides of the guide carriage (11) should be filled with guide
grease until a thin film of grease can be seen on the guide rail when
the guide carriage is moved by hand.
Ø50 Ø63
10 Nm 10 Nm
5.5 Nm 5.5 Nm 5.5 Nm
3.5-4 Nm 3.5-4 Nm 3.5-4 Nm
14.5 Nm 35 Nm
- 20 Nm
Ø80
10 Nm
(only self-locking screws)
40 Nm
20 Nm
9