Axminster SIEG C1 Micro Lathe Mk2 Manual de usuario Pagina 15
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Settings and adjustments
Your microlathe has been factory set and adjusted, however, during its life time
you may find occasion whereby the lathe needs adjusting to maintain its accuracy and
optimum performance. These adjustments can be made as follows:-
Saddle and Traverse slide adjustment
The saddle and the traverse slide are both mounted over dovetail sections. In order to maintain
the ‘tightness’ of the fit; between the sloping surface of the component and its mating surface a
gybe strip has been inserted. (At the rear of the saddle, and to the right hand side of the traverse
slide).
To adjust the gybe strips, loosen the lock nuts and screw the adjusting screws IN, (4 No. for the
traverse slide and 3 No. for the saddle). ‘nipping’ the component tight to its bedway. Tighten all
the screws to the same torque. Check, using the feed handles, that the saddle/slide are locked in
place.
Unscrew each adjusting screw by a quarter turn, hold the screw (socket grubscrew) in position
and tighten the locknut. Check the component now moves smoothly along its bed, using the feed
handles. If not, carry out the same procedure, unscrew by a third turn this time, etc, if the
movement was too tight; by less than a quarter etc., if the movement became too loose.
Repeat the procedure until the movements are smooth and tight. N.B. Always tighten the locknuts
before testing.
Feed scales
The two thimbles that are mounted on the feed shafts of the leadscrew and the traverse feed
should move freely with the motion of the handle and not slip. The thimbles can be turned, using
more force, independently of the handle in order to set a predetermined start or finish point. If the
thimbles are ‘slipping’ i.e. not maintaining their place relative to the handle, whilst the handle is
turning; the cause is almost inevitably dirt, swarf et al., between the pressure plate and the
thimble. To rectify this, undo the nut and washer securing the handle to the shaft, remove the
hand wheel, and then remove the keyed collar and thimble assembly. Take care that the key does
not drop out of the shaft. Gradually separate the thimble from the keyed collar, by twisting and
turning, until there is sufficient space to clean the mating surfaces.
BE WARNED The friction drive between the collar and the thimble is effected by a
wire spring (like part of a circlip) that is housed in a groove in the collar and rubs against
the inside bore of the thimble. If the collar and the thimble are separated too far, the
groove and the spring are exposed. The spring can fall out and if not lost, it is awkward
to re-compress the spring so that the thimble will slide completely back onto the collar.
Once the mating surfaces are clean, mate the key and the keyway and fit the collar/thimble
assembly to the shaft. Refit the washer and the securing nut, and tighten. Tighten until the
handwheel, thimble and collar assembly are too tight to move. Undo the securing nut a quarter
turn and check the that the drive handle rotates freely and there is not excessive backward and
forward play in the shaft. (The handle etc, forms one side of the drive screw anchor into the
slide).
!
!
- SIEG C1 Micro 1
- Lathe Mk2 1
- Index of Contents 2
- Declaration of Conformity 2
- What’s in the Box? 3
- Initial Assembly and Testing 5
- Testing (Continued) 6
- Specifications 7
- Definitions 7
- Settings and adjustments 15
- Maintenance 16
- Maintenance (Continued) 17
- Oiling Points 17
- Part No: 600883 21
- Micro Lathe (Accessories) 22
- Change Gear Table 23
- SIEG C1 Micro Lathe Mk2 24
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