The lo
wer wheel is equipped with a cleaning brush
that
prevents pitch and sawdust build up on the lower tire. Any
pitch and sawdust that builds up on the upper wheel tire
should be removed with a stiff brush or scraped off with a
piece of wood.
Note: To avoid damaging the tire do not use a sharp knife or
any kind of solvent to remove pitch build up.
Verify that the brush keeps the lower wheel tire surface
clean at all times. With use and normal wear over time,
the brush hairs will soften and will not clean the surface of
the wheel as well. You then must lower the brush slightly.
Proceed as follows:
1.
Loosen the 2 screws
A
and slide the brush down along the mounting holes, so that a fresh, stiffer part of the hairs
touches the wheel tire.
2.
Tighten the 2 screws
A
to lock the brush in position.
REPLACING THE WHEEL TIRE
Wheel tires must be replaced if they get worn out or dam-
aged. (If it is worn out, the blade will not track straight on
the wheels.)
Use a flat screwdriver to remove the tire from the groove
on the wheel, then install a new tire.
Note: When replacing the tires, stretch them around the
wheels but do not glue them on.
LOWERING THE WHEEL BRUSH
A
A
REPLACING LOWER WHEEL MOTOR BELT(S*)
*The lower wheel on model 90-290 is driven by one belt while the lower wheel on model 90-380 is driven by two belts
The lower wheel is driven by (a) belt(s*) mounted on a pulley powered by the motor. The belt(s*) tension should
be verified upon reception of the machine, then every 6 months.
Push on the belt(s*) with your finger. The belt(s*) must not move more than 1/8”. If the belt(s*) becomes too loose
due to wear or if a breakage occurs, you must replace it (them*) as follows:
A
B
D
1.
Loosen (but do not remove) the nut,
A
,
located beside the motor plate as well as the ratchet lever
B
(model 90-290)/ bolt
C
(model 90-380). This will loosen the motor belt(s*).
2.
Loosen the bolt,
D
,
located in the middle of the lower wheel, using the supplied 14 mm open end wrench, then
remove the wheel.
3.
Install (a) new belt(s*) on the pulleys.
4.
Re-install the wheel.
5.
Re-tighten ratchet lever
B
(model 90-290) / bolt
C
(model 90-380) and nut
A
to tighten the motor belt(s*).
Model 90-290
Model 90-380
C
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