Replacement Of Vacuum Pump Parts - JUKI KE-3010 Maintenance Manual

10-3. Replacement of Vacuum Pump Parts

A pressure drop may have been caused by abrasion of the following parts.
<Table of consumables>
Replacement parts set No.: 40099554
Check
Cup packing
Suction valve
Exhaust valve
O-ring S-67
O-ring P-10
Gasket
Suction valve
interference-proof rubber
Regarding the following, purchase them separately if necessary.
• Vacuum grease
Manufacturer: Shin-Etsu Chemical Co., Ltd.
This is grease that is applied on O-ring P-10.
• Screw anti-looseness agent NK-4
Manufacturer: Seal End Co., Ltd.
This part is required for tightening the retainer (replacing the cup packing and suction valve
interference-proof rubber).
<Preparation for making a change for the M, L, L-Wide specification>
1) Turn off the power supply and make sure that the vacuum pump is not in operation.
(After the pump is operated, its inside is hot. Leave it for about 30 minutes after it is stopped,
and then start operations after making sure that the pump is cooled down.)
2) Remove the lower right front cover of the machine unit.
3) Remove the air tube harness (power ground wire) connected to the vacuum pump and then
remove hexagon socket head screws (M4 × 8) that fix the VAC_PUMP_PLATE.
Screw
Cover
(Screw × 4)
Maintenance Guide
Quantity
2 Abnormal abrasion, hardening, and crack
2 Deformation, hardening, and nick
2 Deformation, hardening, and nick
2 Deformation, abrasion, hardening, crack
4 Deformation, abrasion, hardening, crack
2 Deformation, abrasion, crack
2 Fissure and hardening
Part. No.: 40119551
Part. No.: 40119552
Check point
Manufacturer's model: HIVAC-G
Manufacturer's model: NK-4
Screw
Power ground
wire
10-7
Rev. 2.0
How to check
Visual check
Visual check
Visual check
Visual check
Visual check
Visual check
Visual check
VAC_PUMP_PLATE
Hexagon socket
head screw × 4