Removing And Replacing The Main Brush - Wetrok Speedmatic Tornado Instrucciones De Manejo

Main brush
FIG 12
The main brush sweeps dust and refuse into the bin at the rear of the motor-sweeper.
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WARNING! Never sweep up string, wire, etc., which can become entangled in the brush and damage the bristles.
Adjusting the main brush
The main brush is raised and lowered by lever 2, fig. 3. The main brush is mounted in a floating mechanism. The main brush should just touch the floor,
leaving a trace 3 cm wide when it rotates (fig. 13). If the main brush leaves lines of dirt, it has worn down and must be lowered. Proceed as follows to lower
the main brush:
1. Undo the nut 2 fig. 12.
2. Turn the knob 1 anti-clockwise until the trail left by the main brush measures about 3 cm.
3. Retighten thenut 2.
4. Check the width of the trace as shown in fig. 13.
Checking tension and replacing the belt of the main brush (fig. 11)
Every 100 – 150 hours work, check the condition of the primary brush drive belt 6. Belt tension is registered by tensioner 5. If the belt 6 is visibly worn fit a new
belt as follows (fig. 11):
– Remove the right-hand side cover 1;
– Back off the belt stretcher 2 of the transmission belt 3;
– Remove the transmission belt 3 from the pulley 4;
– Back off the belt stretcher 5 of the main brush drive belt 6;
– Replace the main brush belt 6;
– Tension the belt 6 using the belt stretcher 5;
– Replace the belt 3 on the pulley 4;
– Tension the belt 3 using the belt stretcher 2;
– Replace the side cover 1.
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WARNING! When the belt is replaced, the brush drive belts 3 and 7 (fig. 11) should also be checked. If belts show signs of wear, replace them to
avoid further down-times for more dismantling of parts.

Removing and replacing the main brush

FIG 14
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WARNING! Whenever the main brush is removed, remember to adjust the position of the brush to ensure perfect contact with the ground.
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WARNING! When fitting the main brush, follow the assembly direction (see fig. 14A).
FIG 13
FIG 14A
30
The main brush can be removed from the left side of
the motor-sweeper. Proceed as follows to remove and
replace the main brush:
– open the brush inspection hatch 1 (fig. 14);
– untighten the screw 3;
– disconnect the drive lever and roller 4;
– remove the brush 5;
– Fit the main brush and centre the notches with the
fins on the right-hand side drive support;
– Fit the assembly 4 on the brush; the holes 6 must
mate with the studs 7;
– Tighten the screw 3 until the drive support enga-
ges with the brush.