Clarke CCM125C, Assembly & Maintenance Instructions

Page: 10 / 16

10
The bolts extend through the securing plate which locates behind the
frame, each bolt being secured using a spring washer and nut. The nuts
should be left loose at this stage.
NOTE: The spacer and securing plate are of similar construction,
however, the LARGER of the two should be used as the SPACER.
3. When all four bolts are fitted, centralise the inner cover (S) on the support,
then fully tighten the two bolts securing it to the bearing block.
4. Remove any adhesive tape used to secure the key to the drive shaft
during transit and slide the drive pulley (Q) on to the shaft, having lined up
the key and keyway. Ensure the grub screw in the hub of the pulley faces
outwards (see Fig 7).
• If the fit is unduly tight, check that the hole in the pulley is smooth and
clear of any excess paint and clean up if necessary using a round file. It
may be necessary to drive the pulley on to the shaft using a soft faced
hammer, until the central boss is roughly flush with the end of the shaft.
Lock the pulley in this position by tightening the grub screw.
THE DRIVE BELT & MOTOR
1. Wrap the drive belt around the drive pulley, seating it into the groove.
2. Place the motor on the support plate with the motor pulley resting on the
drive belt. Fit four M8 x 25mm bolts through the slotted holes in the motor
mounting bracket and through those in the motor support plate, ensuring
flat washers are in place against the bolt head. Fit a flat washer, followed
by a spring washer and nut to each of the bolts from below, leaving the
nuts loose at this stage.
NOTE: During this operation, take care not to
strain the power cable which is
attached to the motor cover.
3. Slide the motor support plate (F) upwards
until the motor and support plate are sitting
level and secure in this position temporarily,
by nipping up two of the four nuts securing
the support plate to the frame, (do not fully
tighten them). The motor, belt and support
plate should be as shown in Fig 7.
4. Hold the steel guide rod so that it rests
across the face of the upper pulley as
shown in Fig 7, as near to the centre of the
pulley as possible. Gently adjust the position
of the motor and motor support plate until
the back of the motor pulley just comes into
contact with the rod.
5. Check the distance between the back of
the motor mounting bracket and the back
Fig. 7