Bevel Gear Play (On The Pfaff 491) - Pfaff 471 Instruction Manual

11. Bevel gear play (on the PFAFF 491
09.06
Requirements
1. When sewing forwards, there must be a slight play between bevel gears 6 and 7.
2. When sewing backwards, there must be a slight play between bevel gears 6 and 8.
7
Fig. 11 - 64
Disconnect air supply of the air filter/lubricator.
Move unit 1 by hand as far as possible to the right (see arrow).
Adjust screw 2 (nut 3) according to requirement 1.
Move unit 1 by hand as far as possible to the left (see arrow).
Adjust screw 4 (nut 5) according to requirement 2.
6
8
Adjustment
2
3
1
4
5
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