4. ADJUSTMENT AND TESTING INSTRUCTIONS FOR
SERVICE WORKSHOPS
All parts are checked as follows: (see spare parts list for reference)
Before assembling check that all the component parts are free from
filings, burrs and other impurities.
Check especially that the bearing surfaces are clean.
The housing should be free from sharp edges which can damage the
connecting cord and other conductors.
Washer
(fig. 34)
The washer (2) under the centre gear wheel (1) should have its dull edge
against the bearing surface of the housing (3). The shanks (4) of the
washer should guide the centre gear wheel (1). The washer should be in
close contact with the gear wheel.
Retaining ring (clip).
(Fig. 35)
The open part of the retaining ring (clip) should be placed in front of
one of the milled surfaces (a) of the main spindle (shaft) (2).
The bent part (b), which is at right angles to the opening of the
retaining ring (clip), should be convex in relation to the washer(3).
Retainer plate
(Fig. 36)
The retainer plates (1) should be locked firmly against the bearing plate
and the lugs symmetrically stretched.
Before the retainer plates (1) are assembled they should be lubricated
with drying anti-rust oil. Retainer plates previously lubricated with
ordinary oil, should be degreased before lubricant is applied.
Bearing plate (3)
(Fig. 36, Fig. 37)
The bearing plates should guide well on the shanks. (If the mounting
holes of the bearing plates are too large, coining may be done round the
holes from the underside).
Locking spring (2)
(Fig. 36)
The locking spring should be well recessed towards the centre and its
front part, should be close to the bearing plate (3) so that the stand-
switch plunger (4) is not lifted above its normal initial position.
The surfaces of the locking spring that come in contact with the stand-
switch plunger should be free from burrs and be rounded off.
The retainer plate (1) should press so tightly against the locking spring
that the locking spring can be withdrawn from the centre by a force =
120 g applied to the oval hole of the locking spring.
9
4.1 Mechanical check
and adjustment
