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

Part Name

Qty

Rubber thermal protector

Orifice

Diaphragm retainer plate

Piston

O-ring 2-151

O-ring 2-121

O-ring 2-008

Screw

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

Detach the front cowling from the front of the pump by removing three M8x20mm flange bolts

using a 6mm T handled hex key.

Detach the fan cable from the front cowling and remove the cowling from the pump.

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

Remove the Rear Cowling from the pump assembly.

Loosen the three M6x20mm that secure the top part of the base to the Pump Head.

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

Remove the thermal rubber protector from the inlet assembly and discard.

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.

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

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