Jack 13-008 Notice D'instruction page 9

9) GRINDING (always wear protective goggles during all grinding procedures)
Plug in the machine power cable and switch it on by pressing the switch located on the arm.
a) Slowly lower the grinding wheel towards the tooth (photo 13), checking that the setting is correct. The light located in a special housing will light up the
grinding area and make working easier (photo 14). In the event of the light not working, switch off the machine, disconnect the plug, wait for the grinding
wheel to stop and replace the light bulb (use only 15W). If you realise that there are some errors, switch off the machine, disconnect the plug and, once the
grinding wheel has stopped, modify the setting.
b) If the settings are correct carry on with the grinding. Remember that good grinding is achieved if the contact between the grinding wheel and the tooth is
gradual, smooth and you do not stop too long on the same tooth.
c) Once the tooth has been ground, raise the grinder head, move the chain manually to the next tooth with the same angle (all the rights or all the lefts) being
careful not to cut yourself. After again resting the tooth to be ground on the chain stop, take your hand away and proceed to grind. Repeat the operation
until all the teeth with the same angle have been ground.
d) Switch off the machine, rotate the vice to the same angle on the other side, (photo 16), and secure it with the lower knob. Set the first tooth at new position
against the chain stop and lower the grinding wheel towards the vice to check if all the settings are correct. If everything is O.K., switch on the machine and
grind as specified at points a), b), c). Repeat the operation until all teeth are sharpened. Turn off the machine and remove the chain from the vice. Now, the
chain is ready to be mounted on the chainsaw.
JACK is a revolutionary grinder suitable - thanks to a patented system - to grind right and left teeth with the same direction of rotation as the grinding wheel
with respect to tooth angle (inwards). Thanks to JACK, this operation is possible, while always avoiding dangerously throwing sparks and removed materials
in the direction of the operator! Your safety is our number one concern!
To ensure greater chain tooth strength and better cutting, manufacturers perform a chromium-plating operation. As you probably know, in grinding, burrs form
on the corner opposite that of grinding wheel feed. In the case of grinders currently on the market, these burrs will be inwards in the right teeth, while they will
be outwards in the left teeth. If your customer is a discerning woodsman, he will complain because wood cutting, even with the chain just ground, will not be
perfect. But with JACK, if you wish, this problem can be overcome.
How?
Grind all the right teeth as previously described. Next, turn off the machine and disconnect the plug. Before making the adjustment indicated in Chapter 9 - d)
proceed as follows:
e) Unscrew the rear head knob, turn the head and position this with the same angle, but on the opposite side, symmetrical with respect to departure angle (e.g.,
if it was set at 60° to the right, set it at 60° to the left). Read the angle on one of the two graduated scales located either under the head to the front, or on
the rear of the machine (photo 17). Important: remember that this angle must correspond to that called "upper cutting angle" by chain manufacturers.
f) Remove the chain from the vice, turn it by 180° so the part originally turned towards the inside of the grinder is now turned outwards (photo 18). Reposition
the chain in the vice.
g) Move the connecting rod and the plate (initially on the left of the operator) to the opposite side of the vice (on the right of the operator) (photo 19); return the
plate to the correct position, so this rests on the rear part of the tooth (photo 20). A grinding wheel secured to the centre of the vice will keep the connecting
rod and chain stop anchored in the desired position.
h) At this point, turn the vice, as described in Chapter 9, para. d) (photo 16). Make sure all the adjustments are correct. If everything is ready, perform grinding
according to the new angle (photo 22) of all the left teeth. Proceed with chain feed as described at para. c) above.
The end result will be a chain perfectly and uniformly ground on all the teeth.
10) MAINTENANCE (to be done only with electrical power supply disconnected)
a) The machine must be kept clean so that the technical data stickers and the scales are clearly visible. For cleaning DO NOT use compressed air, use a rag or
brush for cleaning.
b) Replace the grinding wheel when it has reached a diameter lower than 75 mm (2.95")
c) For more details or replacement of worn parts, contact your dealer or authorised service centre
Use only original spare parts.
11) SCRAPPING
JACK the pro-grinder has been built from up to 95% recyclable materials. Even the cardboard box is recyclable. Do NOT discard them in the environment. When
you decide to stop using the grinder once and for all, place the materials in the dedicated containers.
FOR FURTHER INFORMATION REFER TO THE EXPLODED DRAWING AND THE ELECTRICAL DIAGRAM
I, the undersigned Mr Luciano Malavolti as Chairman of the Company AMA Spa, declare under my sole responsibility that the Electrical Grinder for Chainsaw
Chains "JACK the pro-grinder", whose serial number is indicated on the machine, complies with the requirements of the directives 89/392 EEC - 73/23 EEC
- 89/336 EEC and subsequent amendments and supplements.
S. Martino in Rio 1st September 2006
DECLARATION OF CONFORMITY:
ENGLISH
Chairman
LUCIANO MALAVOLTI
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