34 - Spedo 2600 Service Manual
SP 007 011
Section 3h - Upper blade adjustments (continued)
3. Refit the rear blade guide complete with spacers as shown Section 3c ‘Blade Guide
Preparation’ Fig. 16. Make sure that all the spacers are in place before attempting to fit the
rear blade guide. (Fig. 3 & 4)
4. Tighten the rear blade guide into place, (Fig. 5) making sure that the front and rear guides
align horizontally both ends. (Fig. 6)
5. Set the position of the upper cross cut blade by first measuring from the cutting edge of the
upper cross cut blade, to the lower edge of the blade mount block at the narrow end of the
blade. (Fig. 7)
NOTE: This measurement will vary depending on the type of blade
fitted.
For ‘narrow type’ blades 45/80 degree this measurement should be 7mm (+/- 0.5mm)
For the ‘standard type’ blades 45/80 degree this measurement should be 5mm (+/- 0.5mm).
Tighten the blade into position. (Fig. 9)
6. Check the measurement from the upper edge of the upper cross cut blade, to the upper edge
of the blade mount block. (Fig. 8)
NOTE: This measurement will vary depending on the
type of blade fitted.
For ‘narrow type’ blades 45/80 degree this measurement should be
11mm (+/- 0.5mm) for a new blade. This could be as little as 8mm (+/- 0.5mm) for a
minimum size reground blade. For a ‘standard type’ blades 45/80 degree this measurement
should be 13mm (+/- 0.5mm) for a new blade. This could be as little a 10mm (+/- 0.5mm)
for a minimum size reground blade.
7. The relevant measurement for the blade type you have fitted, taken at the narrow end of the
blade (see step 6) must be replicated at the wide end of the blade. (Fig. 10) E.g. Fitting a
new narrow blade, the measurement from the cutting edge of the upper cross cut blade to
the lower edge of the blade mount block and the narrow end of the blade should measure
7mm (+/- 0.5mm). (Fig. 7) This will give a measurement from the upper edge of the upper
cross cut blade to the upper edge of the blade mount block of 11mm (+/- 0.5mm) (Fig. 8)
8. Once the upper cross cut blade has been positioned correctly, a feeler gauge set to 0.2mm
(Fig. 11) is inserted between the blade mounting block and the blade guide. This is
performed at the wide end of the upper cross cut blade. The blade is then tightened into
position. (Fig. 10)
9. Hold the upper cross cut blade away from the lower cross cut blade by rotating the blade
guide towards the rear of the machine. (Fig. 12)
NOTE: If you find it difficult to rotate
the blade guide towards the rear of the machine you may need to relieve some of the
tension from the blade pressure springs. They are located either end of the blade
mount. (Fig. 15)
Cycling the blade timing pulley anti-clockwise, (Fig. 13) drive the upper
cross cut blade down over the lower cross cut blade. Stop when the blade is in the position
shown. (Fig. 14). The blade should cycle very freely with no binding. That said sometimes
replacing the oil wicks may cause some resistance.
However if the resistance seems to be
excessive investigate the cause before proceeding.
10. Set the blade guide tension by adjusting the blade pressure springs.
These are located either
end of the blade mount.
You relieve pressure from the blade by rotating the nuts anti-
clockwise and apply pressure by rotating the nuts clockwise. (Fig. 15)
NOTE: The blade
guide tension must be applied evenly and not exceed 35N.
11. To adjust the narrow end of the blade, firstly make sure that the blade is positioned as
shown. (Fig. 14) Also that the blade guide is correctly tensioned (Fig 15.) Place a torch as
shown, (Fig. 16) this will help with setting the gap between the upper and lower blades.