MEC-CP842-1.0E.pdf - 第118页
Replacing Consumable Parts >> Vacuum Pump Internal Vane s and Bearings 6-10 MEC-CP842-1.0E 6.7 V acuum Pump Internal V anes and Bearings Point The vacuum pump bla de consists of 6 vanes. Broken vanes can cause abno…
Replacing Consumable Parts >> Vacuum Pump Belt
MEC-CP842-1.0E 6-9
3 Open the belt cover.
4 Remove the motor pulley and replace the belt.
5 Adjust the tension of the new belt. If the belt tension is outside the prescribed
range, move the motor position in 0.1 mm increments to adjust length "L".
C746M4010
Belt cover
C746M4011
Motor pulley
Belt
C746M4012
L
1.8 mm
Motor pulley
Vacuum pump pulley
Load
Amount of slack
Load
Tension meter *
* : Polyflex tension meter manufactured by Gates Co.
New Belt
1.8 mm
0.50 ~ 0.60 kg
28 ~ 34 lb
Belt During Use
1.8 mm
0.38 ~ 0.46 kg
20 ~ 26 lb
Replacing Consumable Parts >> Vacuum Pump Internal Vanes and Bearings
6-10 MEC-CP842-1.0E
6.7 Vacuum Pump Internal Vanes and Bearings
Point
The vacuum pump blade consists of 6 vanes. Broken vanes can cause abnormal vac-
uum pump noise, and may reduce the vacuum force. When replacing the vanes, the
bearings must also be replaced.
Procedure
Disassembly
1 Pull out the vacuum pump. (For this procedure, refer to section 6.6 "Vacuum
Pump Belt").
2 Remove the duct together with the bracket.
WARNING
• Turn the main power off before performing this procedure.
• Do not touch the vacuum pump immediately after operation
because it may be extremely hot. Allow the pump to cool before
beginning this procedure.
C746M4013
Vacuum pump
C746M401
4
Duct
Replacing Consumable Parts >> Vacuum Pump Internal Vanes and Bearings
MEC-CP842-1.0E 6-11
3 Open the belt cover.
4 Remove the pulley and the pulley fan, then remove the vacuum pump from the
table.
Caution:The air filter should not be removed from the vacuum pump for the following reasons.
1. There is a possibility of damage to the pump plumbing or air filter housing.
2. Metal fragments or other dust from the plumbing may get into the pump.
5 Remove the silencer case and the check valve.
C746M4015
Belt cover
C746M4016
Pulley
Pulley fan
Vacuum pump
Air filter
C746M4017
Silencer case
Check valve