Agilent Technologies IDP-7 User manual

Vacuum Products Division
IDP 7 / IDP 10
VPI Valve Minor
Replacement
Kit
Manual No. X3807-90015
Rev. A
February 2017
INSTRUCTION MANUAL

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
Preface
Documentation Conventions
This manual uses the following documentation conventions:
WARNING Warnings indicate aparticular procedureor practice,which
if not followed correctly, could lead to seriousinjury.
CAUTION Cautions indicate a particular procedure or practice, which if
notfollowed,couldcausedamagetotheequipment.
NOTE Notes contain importantinformation.
Before operating or servicing equipment, read and thoroughly understand all operation/
maintenance manuals provided by Agilent. Be aware of the hazards associated with this
equipment, know how to recognize potentially hazardous conditions, and how to avoid
them. Read carefully and strictly observe all cautions and warnings. The consequences of
unskilled, improper, or careless operation of the equipment can be serious.
In addition, consult local, state, and national agencies regarding specific requirements and
regulations. Address any safety, operation, and/or maintenance questions to your nearest
Agilent office.

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
Part Name
Qty
Rubber thermal protector
1
Orifice
1
Diaphragm retainer plate
1
Piston
1
O-ring 2-151
1
O-ring 2-121
1
O-ring 2-008
5
Screw
8
Table 1-1
Installation :
NOTE : To ensure proper operation, and to prevent damage, the kit must be installed and operated only as
specified.

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
1. Detach the front cowling from the front of the pump by removing three M8x20mm flange bolts
using a 6mm T handled hex key.
2. Detach the fan cable from the front cowling and remove the cowling from the pump.
3. Disassemble the rear cowling by remove the six self-tapping screws and two washers that hold the
rear cowling to the chassis and front cowling using a Philips head screwdriver.
1-1
Bolt Locations
Screw Locations

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
4. Remove the Rear Cowling from the pump assembly.
5. Loosen the three M6x20mm that secure the top part of the base to the Pump Head.
6. Loosen and remove the two M6x16 mm bolts on the bottom of the base to the pump module
using a 5mm hex key. Move the base assembly up enough to facilitate removal of the Rubber
Thermal Protector.
1-2

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
7. Remove the thermal rubber protector from the inlet assembly and discard.
8. Loosen the four M4x10mm screws holding the inlet flange on to the frame. Remove the inlet
flange from the top of the frame assembly. Remove the VPI spring and diaphragm/piston from
the frame assembly. Discard the piston assembly.
9. Remove the O-ring from the assembly and discard. Remove the 10-32 threaded orifice and
discard.
1-3
Screw Locations

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
10. Install a new 10-32 threaded orifice. Apply LVP grease to a new O-ring and install it into the O-
ring groove.
11. Install a new O-ring from the kit into the diaphragm/piston assembly. Install the new
diaphragm/piston assembly from the kit into the frame. Install the spring onto the
diaphragm/piston assembly.
12. Install the Inlet Flange into the frame assembly and secure with four M4x10 mm screws. Torque
to 1.6 N.m if a torque wrench is available.
1-4

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
13. Install a new Thermal Rubber Protector onto the inlet assembly.
14. Reseat the base assembly. Verify that all connections are in place and that there are no pinched
wires. Tighten the five screws that hold the base assembly in place.
15. Reinstall the rear cowling on to the pump assembly.
1-5

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
16. Install the six self-tapping screws and two washers that hold the rear cowling to the chassis and
front cowling.
17. Attach the fan cable from the front cowling to the motor.
18. Attach the front cowling to the pump using three M8x20mm flange bolts. Tighten with 6mm Hex
Key. Torque screws to 11.3 Nm if a torque wrench is available.
1-6
Tighten rear cowling screws
sLocations
Tighten rear cowling
screws and washers.

IDP 7 / IDP 10 VPI Valve Minor Replacement Kit
19. Power the pump up to insure it is functioning correctly.
1-7