4.
To replace the motor Brushes Ref.12.
i.
Remove the four Screws Ref.1 from the
Cover Motor and lift the cover off.
ii.
Remove the four Spring Brush Ref.17 and
set to one side. The springs are removed by
pushing the spring tag in towards the
brush and lifting out.
iii.
Using a cross recess screwdriver remove
the four brush shunt (pigtail) retaining
screws and lock washers Ref.16.
iv.
Remove the four brushes.
v.
Thoroughly clean the brush assembly and
housing using a soft brush and a suitable
vacuum cleaner.
vi.
Inspect the four brushes for damage or
wear and if any one brush is found to be
damaged or worn to a length of
1/2” or less then replace all four brushes.
Always replace all four brushes together.
vii.
When replacing brushes ensure that each
brush moves freely in each holder and fit
the brush with the shunt (pigtail) in such a
position as to allow free movement
throughout the brush life. Ensure that
each brush shunt is connected securely
with the Screw and Washer Ref.16. (two
spare screws and washers are provided
with each pack of brushes). The brush
should be fitted so that the brush shunt
(pigtail) is at the bottom of the brush.
viii. Refit the brush springs by inserting into the
holder with the coil spring over the brush
then push in until the tag comes into
contact with the holder, slide the tag away
from the brush and release. The brush
spring will clip into position. Check the
springs and brushes for correct alignment
and free movement.
ix.
Carry out electrical safety test and record
results (see Testing for Electrical Safety
page 7 and 8).
x.
Finally check that all leads and cables are
clear of moving parts and will not be
trapped when refitting the cover motor.
xi.
Refit the cover motor and secure with the
four Screws Ref.1.
Sanding Pad
Reasons for Removing/Replacing the Sanding Pad
Removal and Replacement of the Sanding Pad
It is very important to maintain the Pacific Wolverine
PF7 Edger Sander sanding pad in perfect condition
for score free sanding and to maximize the life of the
abrasive disc.
In normal operation the sanding pad needs little
maintenance apart from periodic trimming, however,
if the pad is worn below its minimum thickness or it is
damaged it must be replaced.
1.
The sanding pad is worn below its minimum
tread thickness of 5/32”.
2.
Physical damage that cannot be removed by
trimming.
3.
To gain access to maintain/repair the fan, gears,
motor and bearings.
4.
To remove an obstruction from the dust pickup.
1.
Disconnect the edger from the power supply.
2.
Turn the edger upside down and rest it on its
handles.
3.
Remove the Bolt Clamp (Ref.59) and Clamp
Washer (Ref.58).
4.
Using a 11/16“ hardwood dowel approximately
6" long, lock the Fan Intake (Ref.31) in position to
stop it turning by inserting the dowel through the
underside of the edger to the rear of the sanding
pad.
5.
Using service tool Part No.R011730 Sanding Pad
Wrench, remove the sanding pad in a counter
clockwise direction (right hand thread). Take care
to support the edger.
Note: The sanding pad can be tight, if needed use a
soft mallet to tap the wrench to help removal.
6.
Thoroughly clean the Guard Disc (Ref.54) and
refit all the Shims (Ref. 56) if removed.
7.
Fit a new sanding pad and tighten using the
service tool.
CAUTION - when the sanding pad
becomes loose carefully remove it by
hand. Take care not to lose the Shims
(Ref.56) which may come away with the
sanding pad. These shims, which may
vary in quantity with a minimum of two,
are used on the Shaft Drive (Ref.47) to
pack out the sanding pad.
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