CP-7[732-742]-series Mechanical Reference(2.9E).pdf - 第131页
3.8 Replacing the V acuum Pump Internal V anes and Bearings Point The vacuum pump blade consists of 6 vanes. Broken vanes can cause abnormal vacuum pump noise, and may reduce the vacuum force. When replacing the vanes, t…
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 the "L" dimension.
C7SM3064E
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
Motor pulley
Belt
C7SM3063E
Belt cover
C7SM3057E
Part 3 Chapter 3 Replacing Consumable Parts
Edition 2.7 3-3-11 CP-7 series Mechanical Reference
3.8 Replacing the Vacuum Pump Internal Vanes
and Bearings
Point
The vacuum pump blade consists of 6 vanes. Broken vanes can cause abnormal vacuum
pump noise, and may reduce the vacuum force. When replacing the vanes, the bearings
must also be replaced.
Procedure
WARNING
• Be sure to switch off the 200V power supply before
beginning this procedure.
• Do not touch the vacuum pump immediately after
operation as it may be extremely not. Allow the
pump to cool before performing this procedure.
Disassembly
1. Pull out the vacuum pump. (For this procedure, refer to section 3.7 "Replacing the
Vacuum Pump Belt").
2. Remove the duct together with the bracket.
Duct
C7SM3058E
Vacuum pump
C7SM3056E
Part 3 Chapter 3 Replacing Consumable Parts
Edition 2.7 3-3-12 CP-7 series Mechanical Reference
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 folllowing
reasons.
1. There is a possibility of damage to the pump plumbing or air filter bousing.
2. Metal fragments or other dust from the plumbing may get into the pump.
5. Remove the silencer case and the check valve.
C7SM3066E
Silencer case
Check valve
Pulley
Pulley fan
Vacuum pump
Air filter
C7SM3065E
Belt cover
C7SM3057E
Part 3 Chapter 3 Replacing Consumable Parts
Edition 2.7 3-3-13 CP-7 series Mechanical Reference