Manual Tecomec MIDI Jolly (page 7 of 56) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Spanish, Norwegian, Finnish)

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SYMBOLS

This symbol points out the possibility of serious

personal injuries if the provisions and instructions are

not complied with.

This symbol points out that the user must wear

protection goggles when he uses the machine.

This symbol points out that the user must wear

protective gloves when he uses the machine.

This symbol points out the correct running direction of

the machine (grinding wheel)

PART DESCRIPTION (FIG. V)

1. Depth adjustment knob

2. Grinding wheel, 3/16”

3. Front protection

4. Large washer

5. Flange nut

6. Shield guard screw

7. Knob

8. Vise assembly

9. Dressing brick

10. Template

11. Handle bolt

12. Operating handle

13. Rear h ed protection

Note: for spare sarts, see g. VI.

ATTENTION – SETTING UP THE GRINDER

- the grinder shall only be used in a place protected from dust

and dampness, well-lighted, away from children, gases, or

other ammable or explosive liquids. The grinder shall be

placed near a suitable earthed outlet, not to use dangerous

extension cables.

- fasten the grinder onto the bench (photo 1) or to the wall (photo 2)

with two M8 bolts (not provided). For fastening the grinder onto a

bench, carefully position it, using the relevant reference notches.

- when the grinder is fastened onto the bench or to the wall (photo 2)

use a suitable square support (not provided), making sure that the

machine is not fastened at the level of the operator’s eyes. We

recommend that you install the grinder at a max. height of 120 -

130cm from ground level.

- insert screw M6x25 provided, making it slide up to the end of its seat

on the arm (photo 3)

- insert the screw into the slot (photo 3).

- position the rear protection (photo 4A).

- secure the handle on the screw (photo 4B).

- after installing the grinder properly, assemble the wheel.

ASSEMBLY AND WARNINGS ABOUT THE GRINDING

WHEEL

- use a wheel t for the type of chain to be ground, consulting the

chain table enclosed at the end of the handbook (column I - L)

- before using the machine, check that the grinding wheels are

in perfect condition. To do so, hang the wheels by the central hole

and tap them lightly with a non-metal object on the side near the

perimeter. If they are in perfect condition you should hear a metallic

sound. A dull sound means that the wheel is cracked or broken, and

shall be replaced.

- do not force the grinding wheel on the hub and do not modify the

diameter of the assembly hole. Be careful not to use grinding wheels

which do not perfectly match the machine

- to install the wheel, use only clean and perfect hub and ring nut

- make sure that the outside diameters of the hub/ring nut are identical

(g. I)

- the hub is steadily fastened onto the electrical motor’s shaft

- unscrew the ring nut manually, center and install the wheel on the

hub, and re-screw the ring nut manually (photo 5)

- be careful with the ring nut assembly, since its discharge must

be on the wheel side (g. II)

- if the grinding wheel’s ring nut is too tightened, the wheel could

break or disintegrate during operation, seriously damaging the

operator. To avoid this risk, do not overtight, since this ring nut is

made of thermoplastic material

- position the wheel guard properly (foto 6A - 6B), by rotating it till

the notch hits the arm (foto 6C) and secure it with the position lock

screw (foto 6D).

CHECKING THE GRINDING WHEEL

- stand beside the wheel, start the grinder, and examine it to ensure

that it does not oscillate either laterally or transversally, creating any

anomalous vibration

- if the wheel oscillates, immediately stop the machine and make sure

that the wheel has been assembled properly. If necessary, replace

the wheel with an original spare part

- with the machine off, check the wheel prole by means of the special

orange template (g. III point C)

- if necessary, after wearing suitable goggles and gloves, start

the grinder and retouch the wheel prole with the dressing stone

provided, working carefully, grasping the dressing stone with two

hands. The contact with the grinding wheel revolving at high speed

could cause burns and injuries

- before initiating grinding operations, test the assembled grinding

wheel at working speed for at least one minute, keeping far from the

machine and checking that nobody is standing on the trajectory of

its rotation plane.

N.B.: Replace the grinding wheels when their minimum

diameter is about 80mm (3.14 inches)

START-UP

- after fastening the machine onto the bench or to the wall, properly

install the wheel, its guard, and the handle, make sure that the

direction of rotation of the wheel is the one indicated on the wheel

guard; then, start up the machine

- the machine is equipped with a safety switch with a release coil, i.e.

in case of sudden power failure, this switch is deactivated, leaving

the machine on stand-by in case of a sudden return of current (to

restart the grinder, push the switch again)

- the machine must be connected with an outlet that ensures a

230V

voltage or to a U.S. outlet that ensures 120V

voltage and

10A current

GRINDING

- clean the chain before grinding it

- since this grinder has a xed angle for the wheel inclination, the upper

cutting angle of the tooth is xed at 60° (measured anticlockwise)

- position the chain to be ground on the two jaws, making sure that

the depth gauge is on the right, as indicated (photo 7-points 1)

- loosen the ring nut at the back of the grinder (photo 7 - point 2),

and turn the vise clockwise, considering the grade that corresponds

to the upper grinding angle of the right tooth, using the graduated

scale (photo 7 - point 3)

- make one of the right teeth hit the chain stop, and, with the register

screw (photo 8 - point 1), adjust the tooth feeding

- the chain stop is installed on a pin installed on a plastic connecting

rod. This pin has two position notches, so that the chain stop can be

positioned just at the center of the tooth to be ground

- stop the motor and lower the arm; then, with the chain feed register

screws, try to approach the tooth to the wheel, until it is slightly

touched, always starting from the worst tooth identied using the

template (g. III point D)

- start the grinder and, with the tooth feed register screw, determine

the quantity to be removed

- after determining the quantity to be removed, lock the register screw

with the ring nut (photo 8 - point 2)

- to avoid overloading the motor and to prevent the chain from

being damaged, remove minimum quantities of material and

do not work too long on the same tooth, so as not to damage

the cutter

- adjust the grinding depth with the register screw positioned on the

arm, without nicking connecting links (photo 9)

- after determining the grinding depth, lock the register screw with the

ring nut (photo 9 - point 1)

midi jolly

–

SPEED MASTER

• adjust the clamping lever; press the red push-button and pull the

lever. The correct tightening of both jaws (photo 10) is set by a

slight clockwise rotation (clockwise rotation increases tightening,

whilst anti-clockwise rotation loosen it). The tightening system

with clamping lever allows a uniform deformation of the two chain

support jaws, so that the chain is always positioned just at the

center of the vise rotation. This is an essential requirement for

perfect grinding, because the length of the right and left teeth

must be the same.

• if the clamping lever is turned clockwise, the chain is locked

between the two jaws, for precise and safe grinding (photo 11)

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Tecomec MIDI Jolly Manual

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