Parker EME
Toothed belt
192-550003N10 ETH ATEX December 2019
47
With frame sizes ETH032, ETH050 and ETH080 the lubrication ports have a
diameter of 2.5 mm.
With frame sizes ETH100 and ETH125 the lubrication nipple is integrated.
For all sizes you need a beaked nozzle for your grease gun (Part No.:
180-006043).
Insert the nozzle into the hole in the cylinder profile and place it orthogonally onto
the lubricating port.
Use 1/3 of the defined amount of lubricant.
The amount of lubricant applied can be defined by the number of pump strokes.
Pump the stated amount of grease onto a balance, while counting the pump
strokes.
For optimum distribution of the lubricant, a lubrication run must be performed
after each lubrication procedure. To do this, move the screw nut once over the
entire working stroke. For short-stroke applications (motion cycle < 2.5 spindle
rotation) see lubrication run lengths for short-stroke applications in the ETH
catalogue.
3.3
Toothed belt
3.3.1.
Checking the toothed belt
In general, the high performance toothed belts used in the ETH are maintenance
free.
Visual inspection of the timing belt is however required. Please check the toothed
belt for the following aspects:
Wear at the teeth
Cracks in the tooth root surface
Fractures in the belt back
If you find signs of wear, the toothed belt must be exchanged (see page 48).
For visual inspection, you must only remove the (upper) lid with the four screws
(see Figure 37 & Figure 39 Pos.4+11).
ATTENTION!
Do not remove the screws of Pos.11 entirely.
Do not forget to refix the lid after the inspection!
3.3.2.
Toothed belt exchange
Under good operating conditions, the toothed belt may run for 6000 hours of
operation. After this time, the belt must be exchanged.
Good operating conditions are:
no negative environmental influences
perfect alignment of the shafts
approved and correct geometry of the pulleys
correct mounting
permitted transmissible drive torques are respected.
