00900194-01_SM_ASM ProcessLens_Dual-lane_EN.pdf - 第71页
4 Replacing spare parts at the conveyor 4.5 Conveyor belt, belt drive and hexagonal shaft Service Manual ASM ProcessLens Dual-lane 09/2018 71 Installation ► Follow the removal instructions in reverse order for installati…
4 Replacing spare parts at the conveyor
4.5 Conveyor belt, belt drive and hexagonal shaft
70 Service Manual ASM ProcessLens Dual-lane 09/2018
Fig.46: T slot nuts in conveyor rail
CAUTION
Replacing the movable idler pulley - fixing the T-slot nut
The movable idler pulleys are fixed to the inner side of the conveyor rail with a T slot nut
[03113747-xx].
If you want to remove a movable idler pulley, proceed as follows:
ü Before removing a movable idler pulley, first fix the T-slot nut.
► (1) When removing a movable idler pulley in the middle of the conveyor rail, you can
reach the T-slot nut through the hole on the other side of the conveyor rail. Use your
finger or an appropriate tool to fix the T slot nut.
► (2) When removing a movable idler pulley at the beginning or the end of the conveyor
rail, fix the T slot nut with your finger (the conveyor rails are open at the side).
ð The T slot nut must not fall into the conveyor rail! The lack of room makes sub-
sequent insertion and fixture highly complicated if not impossible!
► Loosen the movable idler pulley.
CAUTION
Loosen the movable idler pulley only as far as necessary!
► Do not remove the movable idler pulley (unless you explicitly need to remove it). Oth-
erwise the T slot nut on the inner side will fall into the conveyor rail.
► Remove the idler pulley to be replaced.
CAUTION
Spacer
The fastening screw for some idler pulleys also holds the spacers in place.
► Make sure that you do not loose these.
► Unthread the deflection pulley from the conveyor toothed belt and remove it.
4 Replacing spare parts at the conveyor
4.5 Conveyor belt, belt drive and hexagonal shaft
Service Manual ASM ProcessLens Dual-lane 09/2018 71
Installation
► Follow the removal instructions in reverse order for installation. Also observe the following
instructions:
CAUTION
Installation instructions
► Tighten the fixing screw with a torque of 0.58Nm. Make sure that you do not tighten
the screws too much. This could cause irreparable damage to the conveyor!
The corresponding threads are only in 1.5 to 2mm thick plates and could be damaged
if you use a torque which is too high.
For this reason, avoid using screws which are too short. Use a measuring scale to
check, if needed!
► Use any spacers available.
► Do not bend or damage the toothed belt.
► Make sure that the toothed belt is positioned accurately in the guidance on the motor
shaft or in the belt drive.
► Remove the adhesive tape, if necessary.
► While you tighten the idler pulley, set the tension of the toothed belt correctly (see Set-
ting the tension of the conveyor toothed belt).
4.5.5 Replacing the pinion gear drive
Parts
Fig.47: Pinion gear drive
1 03112876‑xx Drive pinion cpl. M-C
See also Replacing the idler pulley (conveyor belt)
Equipment and tools
00386253‑xx Torque screwdriver ESD 0.4 - 1.0Nm
03078706‑xx Bit holder for screwdriver TorqueVario
00326015‑xx Belt tension measuring device
00353832-xx Allen key set
Bit, size 4
If required:
Magnet lifter or tweezers and adhesive tape
Measuring scale
4 Replacing spare parts at the conveyor
4.5 Conveyor belt, belt drive and hexagonal shaft
72 Service Manual ASM ProcessLens Dual-lane 09/2018
Removal
CAUTION
Toothed belt
► Make sure that the toothed belt is not folded or otherwise damaged.
► Use the software or manually move the conveyor rail into a position which allows you best
access.
– To move the conveyor rail manually, pull the toothed belt of the width adjustment unit.
– Make sure that the rear side of the conveyor rail is also accessible.
► Switch off the machine, disconnect it from the power supply and secure it to prevent
unauthorized reactivation.
Fig.48: Movable idler pulleys
► Loosen the fixing screw of the relevant movable
idler pulley(1) to release the tension of the belt.
CAUTION!
Loosen the movable idler pulley only as far
as necessary!
Do not remove the movable idler pulley (unless
you explicitly need to remove it). Otherwise the T
slot nut on the inner side fall into the conveyor
rail.
.
See also Replacing the idler pulley (conveyor belt)
Fig.49: Washer
► Remove the fixing screw(1) (cross head) and
take off the washer(2).
► Remove the toothed belt(3).
► Remove the fastening screw(4) (Allen).