x. Refit the cover motor and secure with the four screws.
Setting the Wheels
CAUTION: under normal operating conditions the
wheels should not have to be adjusted. However, should
you suspect the wheels have gone out of adjustment follow
the procedure below to check and reset the wheels.
1. Remove the handle and turn the floor sander upside down so
that it rests on the motor cover. Take care, the floor sander is
heavy and can easily over balance. Make sure that it is well
supported.
2. Fit the sanding block to the floor sander, making sure that it is
firmly seated.
3. Place a block of wood or other solid material on the face of
the sanding block 16mm (5/8“) high by 114mm (4½”) wide
across the full width of the sanding block.
4. Place a straight edge, a steel rule is best, across the centre of
one wheel and the block of wood. If the wheels are adjusted
correctly there will be no gap across the whole width of the
block. If you see a gap the wheels need adjustment.
If the gap is at the rear of the block toward the back of the
floor sander, the wheels are too low. If the gap is at the front
of the block, toward the front of the floor sander the wheels
are too high.
5. If the wheels need adjustment. Loosen the Axle Clamp screws
located under the axle which will be facing you when the floor
sander is upside down resting on the motor cover.
6. Rotate the axle via the socket head screw located in the centre
of the wheels. As you rotate the axle via the socket head
screw the wheels will rise or fall . Adjust the wheels so that the
straight edge rests on the centre of the wheels and the wood
block so that there is no gap across the whole width of the
block.
8
7. When the wheels are correctly adjusted tighten the axle
clamp screws. Check the socket head screws in the centre of
the wheels are tight.
ELECTRICAL TESTING
CAUTION: testing for electrical safety should only be
undertaken by a competent person and all results recorded.
Do not exceed 1250 volt insulation test duration of 3
seconds
1. Examine the power cable for damage. If the outer insulation
shows the slightest of abrasions or the inner conductors are
exposed then the cable must be replaced. The cable must not
be repaired with tape or insulation sleeve.
2. Open and check the mains plug for condition, loose
connections, damaged wires etc. Ensure that the strain relief of
the plug is correctly secured to the outer cable insulation. This
does not apply if the plug is moulded on to the power cable.
3. Remove the question switch housing screws and lift separate
the switch housing. Check the switch, connections, leads
etc. Pay special attention to any gaskets, ‘O’ rings and seals
intended to exclude dust from the switch and switch housing
area. These must be maintained in good condition.
Carefully brush and vacuum clean the switch housing.
4. Refit the switch housing taking care not to trap any leads.
5. Using a piece of insulation tape or a small soft wedge lock the
bias off switch in the ‘ON’ position.
6. Use the standard procedure test for electrical safety. Do not
exceed 1250 volt insulation test duration of 3 seconds.
5. Record the test results.
6. Complete a functional (run) test and record results.
CAUTION: when undertaking a functional r un test make sure
the machine is secure. Remember the sanding pad will rotate.
FAULT FINDING
FAULT CAUSE ACTION
The machine does not run. The power cable is not connected to
the power supply.
The motor brushes are worn.
The voltage is too low.
Connect the power cable to the power supply.
Replace the motor brushes.
Check the main power complies with the
machine’s serial plate data.
The machine will not pickup dust. The dust bag is full.
There is an obstruction in the dust
pick-up.
Replace the paper dust bag or empty the cloth
dust bag.
Disconnect the machine from the power supply,
tip the machine back and remove the
sanding pad, check for obstruction.
The machine does not sand The
sanding pad is damaged. Check
and replace the sanding
evenly.
The sanding pad is damaged.
The wheels are out of adjustment.
Check and replace the sanding pad.
Check and adjust the wheels.
The sander does not glide easily in a
straight line.
The machine is not being operated
properly.
The wheels are out of adjustment.
The Abrasive Pad is worn
Read the instructions, do not apply pressure
when sanding.
Check and adjust the wheels.
Replace the Abrasive Pad
The machine runs slow. The voltage is low.
A motor brush is not making contact.
Check the supply voltage.
If an extension lead is beingused, is it undersize
and/or is it coiled.
Check and refit or replace the motor brushes.
© Hiretech
To Next Page
Loading...
