MAINTENANCE
12
Motor Brushes
Replacing the Fuse
1. After 100 hours of use, check the
condition of the motor brushes by
unscrewing each access port cap in
turn, see fig 21.
DISCONNECT THE
LATHE FROM THE
MAINS SUPPLY!
NOTE: Take careful note of the
orientation of the brushes,
remember that they have bedded
themselves to the profile of the
commutator in that position. If
you fit them reversed, it can cause
excessive sparking and heat until
they have re-bedded themselves.
2. Remove the motor carbon
brushes and check their condition,
see fig 22.
3. If they are in good condition with
plenty of carbon left on the brush,
re-fit. If they are worn down to the
half way mark (7.5mm) we advise
replacing with new brushes, see
fig 23.
IMPORTANT: If they wear beyond
this mark the motor’s commutator
could get damaged.
4. Replace the access port cap
screws, connect to mains supply
and run the machine off load for
approximately twenty minutes to
bed the new brushes in.
Fig 21
Fig 24
Fig 25
Fig 22
Fig 23
Remover the access port with
a flat headed screwdriver
Remove the motor brush and
check its condition
Replace the motor brush if
worn down to the ‘Mark’
To the rear of the control box there
is a 5A fuse. If the fuse has blown,
unscrew the holder and replace with
a new ( F5AL250V ) fuse as shown in
fig 24-25.
NOTE: The most common cause for
the fuse to blow is the motor being
overloaded!
7.5mm
15mm
