HARVEY HPS1600E, Original Instructions Manual

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8.3 Replacing belt.
Remove the motor cover, set the tilt to 45 degree, and cutting height below the table.
Once a Month
1. Main motor belt.
release nut (A) and bolt (B)
，
you can rise the motor to loosen the belt, take out it and install
new belt, thread bolt (B) to tighten the spring and tighten nut (A). see
Fig.55
Fig.54 Fig.55
2. Scoring motor belt.
You can take out the belt (A) direct, and install new belt. see
Fig.55
8.4 Air gap adjustment of brake
8.4.1
After a long-term use, friction surface of the brake may be worn out, which leads to the
increase of the air gap between electromagnetic iron and armature as well as the working length
of spring, and decrease the spring strain and brake torque, at the same time, due to increased air
gap, the current also rises when armature is released, the armature can not even be released in
some extreme cases. Therefore, air gap shall be regularly checked and adjusted, or replace the
friction disc if necessary.
8.4.2 Air gap is adjustment as follow
Fig.56
a) Turn the hand release lever left and remove it.
b) Remove fan cover (11).
c) Turn nut (5) and bolt (8) left to loose them.
d) Turn bolt (8) right to adjust air gap of armature within values in the table below.
Type Frame size 71 80 90 100 112 132 160 180 200 225 250
MQAEJ series 0.3 0.3 0.3 0.5 0.5 0.5 0.6 -- -- -- --
QAEJ series
air gap(mm)
0.2 0.2 0.2 0.3 0.3 0.3 0.4 0.4 0.5 0.6 0.6
e) Turn nut (5) right and tighten firmly.
f) Reassemble fan cover (11).
g) Reassemble hand release lever.
8.4.3 Replace friction disc
Friction disc is easily worn out. If wear is above 2.5mm on one side, it must be replaced
with the following steps:
a) Remove hand release lever.
b) Remove fan cover (11).