CP43维护手册.pdf.pdf - 第137页
14 – 11 V ersion 7.0 Chapter 14 Replacing Consumable Parts The following procedur es should be followed when r emoving and attaching the pump. The procedur es listed below enable the adjustment for the belt tension to be…
Chapter 14 Replacing Consumable Parts
The
vacuum
pressure
is low.
Cause
Measure
Condition
The gauge is broken. Replace the gauge.
Bad air is leaking
from the filter case,
piping, or air tank.
The belt is loose.
The bolts on the
pulley are loose.
The rotation speed
falls due to a breakage
in the motor.
An unusual sound
occurs. An indication
that the alignment
may be off.
An unusual sound
occurs. An indication
that the motor may
have overheated and
may be damaged.
An unusual sound
occurs. An indication
that some bolts may
be loose.
Check that all the parts are firmly tightened.
Pull the belt and readjust it.
Check that all the bolts on the pulley are
tight.
Repair or replace the motor. (Check the
electrical source and voltage.)
Adjust the alignment of the pulley.
Repair or replace the motor.
(Check the electrical source and
voltage.)
Retighten the bolts.
14 – 10
Version 7.0
CP IV-3 Maintenance
14 – 11
Version 7.0
Chapter 14 Replacing Consumable Parts
The following procedures should be followed when removing and
attaching the pump. The procedures listed below enable the
adjustment for the belt tension to be done with ease.
When removing the pump, follow the procedures below.
(1) Remove the belt from the pulley.
(2) Using a caliper measure the distance between the pulley and
the motor axis. Record this distance.
Fig. 14-9 Distance between the Axes
(3) Remove the pump.
When attaching the pump back follow the procedures below.
(1) Without moving from its position, place the pump on the base.
(2) Temporarily stop the pump, and adjust the alignment
according to the measurements that were recorded previously
for the distance between the axes. The permissible amount of
leeway for the alignment should be no greater than 0.3. mm.
Fig. 14-10 Adjusting the Alignment of the Axes
CP IV-3 Maintenance
Chapter 14 Replacing Consumable Parts
(3) Hang the belt. Check to see that the value of the tension is
within the specified range. If it is not in the range, remove the
belt, and rehang the belt so that there is a 0.1 mm leeway for
each belt for the l dimension.
Table 14-4 Belt Tension
Note: The tension meter that is used is the Gates Polyflex Tension
Meter-7M.
Fig. 14-11 Belt Tension
Slack - Load
Tension Meter
In Use
0.50 - 0.60 kg : 1.8 mm
28 - 34 lb
New Belt
0.38 - 0.46 kg : 1.8 mm
20 - 26 lb
14 – 12
Version 7.0
CP IV-3 Maintenance