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IOM Manual VF-W_ATEXgb - Translation of original instructions in Italian - Rev 03_0 - 30/09/16
3) Preheat the bushing (
2
) and pinion (
1
) to 80-100°C.
4) Quickly fit to the motor shaft, in succession: the bushing (
2
), key (
3
) and pinion (
1
). When fitting the
bushing (
2
), ensure that the side with the chamfer for the seal ring is facing you. To facilitate mounting,
lightly press on the parts being fitted (e.g. with a tubular drift). Make sure that the reaction force in
this case is supported by the opposite end of the shaft, and not by the fan cover. At the end of this
procedure the pinion (
1
) should be snug against the bushing (
2
).
5) Secure the assembly axially with the spacer (
4
) and washer (
5
) and tighten the bolt (
6
) to the specified
torque. Alternatively, for configurations which have this option, fit the stop bushing (
B1
) and hold it
snug against the pinion (
1
) while tightening the two grub screws (
7
). See the figure at the right.
6) Lubricate the seal ring lips with a film of grease.
7) For type VFR 49 gearboxes, which are lubricated for life and hence do not have a service plug, fill with
the quantity of lubricant specified in the lubrication chapter of the VFR catalogue.
8) Grip the motor firmly and, holding it in alignment, mount it to the flange of the first reduction stage. Take
the greatest care to avoid denting the pinion or gear wheel teeth.
9) With the motor and gearbox flanges in contact, fully tighten down the fixing bolts (
8
), proceeding
gradually and in a cross-wise pattern.
10) Lubricant must be changed periodically on VFR 130 to VFR 250 gearboxes. For these gearboxes the
lubricant charge is given in the “LUBRICATION” section of this manual. Check that the correct level
has been reached via the sight glass, with the gearbox in its specified mounting position. Top up as
necessary.
5.5 INSTRUCTIONS FOR THE ASSEMBLING OF THE LIMIT-SWITCH DEVICE (RVS) ONTO GEARBOX
5
5
4
2
4
6
1
10
9
3
8
7
1. Make sure that the limit-switch device (10), as well as the mounting kit for the specific gearbox, is
available in the required configuration.
2. Start assembling the components of the mounting kit first. Insert the dowel pin (1) and keys (2) into their
sites. Then slide shaft (3) into the hollow shaft of the gearbox. The position of the dowel pin (1) will define
the side the limit-switch (10) fits onto.
