Agilent Technologies 8697 Guide

Agilent 8697 Headspace Sampler
Maintenance

Maintenance Manual
Notices
© Agilent Technologies, Inc. 2021
No part of this manual may be reproduced in
any form or by any means (including
electronic storage and retrieval or translation
into a foreign language) without prior
agreement and written consent from Agilent
Technologies, Inc. as governed by United
States and international copyright laws.
Manual Part Number
G4511-90005
Edition
Second edition, January 2021
Printed in USA
Agilent Technologies, Inc.
2850 Centerville Road 
Wilmington, DE 19808-1610 USA
安捷伦科技 （上海）有限公司
上海市浦东新区外高桥保税区
英伦路 412 号
联系电话：[phone]
Warranty
The material contained in this document is
provided “as is,” and is subject to being
changed, without notice, in future editions.
Further, to the maximum extent permitted
by applicable law, Agilent disclaims all
warranties, either express or implied, with
regard to this manual and any information
contained herein, including but not limited
to the implied warranties of merchantability
and fitness for a particular purpose. Agilent
shall not be liable for errors or for incidental
or consequential damages in connection
with the furnishing, use, or performance of
this document or of any information
contained herein. Should Agilent and the
user have a separate written agreement
with warranty terms covering the material in
this document that conflict with these
terms, the warranty terms in the separate
agreement shall control.
Safety Notices
CAUTION
A CAUTION notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in damage to the product or
loss of important data. Do not
proceed beyond a CAUTION notice
until the indicated conditions are
fully understood and met.
WARNING
A WARNING notice denotes a
hazard. It calls attention to an
operating procedure, practice, or
the like that, if not correctly
performed or adhered to, could
result in personal injury or death.
Do not proceed beyond a WARNING
notice until the indicated conditions
are fully understood and met.

Maintenance Manual 3
Contents
1 About Maintaining the Headspace Sampler
Overview of Maintenance 6
Where to find a procedure 6
GC and Headspace Automated Maintenance Procedures 7
Tools and Materials Required for Maintenance 8
Safety 8
2 Removing Covers and Components
Automated Maintenance Procedures and Covers 10
Install/Remove the Transfer Line Support Bracket 11
Remove the Pneumatics Cover 12
Remove the Valve Thermal Enclosure 13
Install the Valve Thermal Enclosure 14
Remove the Pneumatics Assembly 15
Remove the Valve/Loop Cover 18
Remove the Tray Assembly 19
3 Maintenance
Clean the Sample Tray Assembly 22
Clean the Oven 24
Replace the Sample Probe 29
Replace the Sample Loop 31
Replace the Sample Loop Adapters 34
Replace the 6 Port Valve 36
Replace the 6 Port Valve Rotor 39
Clean the 6 Port Valve and Rotor 41
Attach the Transfer Line to a Split Splitless or Multimode Inlet 42
Attach the Transfer Line to a Volatiles Interface 44
Attach the Transfer Line to a Purged Packed Inlet 46
Attach the Transfer Line to a Cool On-Column Inlet 48
Remove the Transfer Line from the GC 49
Disconnect the Transfer Line from the GC 50

4Maintenance Manual
Remove the Fused Silica Column from the Transfer Line 51
Install a Fused Silica Column into the Transfer Line 52
Use ProSteel Tubing 57
Replace Gripper Pads 58
Manually Remove Vials in the Oven 59
4ConsumablesandParts
Consumables and Parts for the Agilent 8697 Headspace Sampler 62

Maintenance Manual 5
1About Maintaining the Headspace
Sampler
Overview of Maintenance 6
GC and Headspace Automated Maintenance Procedures 7
Tools and Materials Required for Maintenance 8
Safety 8
This section provides an overview of the maintenance procedures included in this document. It
also lists the tools needed for routine maintenance and the safety information one should be
aware of before performing a maintenance task.

1 About Maintaining the Headspace Sampler
Overview of Maintenance
6Maintenance Manual
Overview of Maintenance
This manual details the routine tasks needed to maintain the 8697 Headspace Sampler
(Headspace). The procedures assume a basic knowledge of tool use and of Headspace
operation. Readers are, for example, expected to know how to:
•Safely turn devices on and off
•Prepare and run samples
•Enter and develop methods
•Make typical pneumatic connections using Swagelok and other standard fittings
Where to find a procedure
Included in this manual are sections on maintaining the following Headspace components:
•Fused silica column
•Transfer line
•Sample needle
•Sample loop
•6 port valve
•Oven
•Vial racks
•Tray

1 About Maintaining the Headspace Sampler
GC and Headspace Automated Maintenance Procedures
Maintenance Manual 7
GC and Headspace Automated Maintenance
Procedures
As a part of the GC system, the Headspace responds to GC maintenance requests. When the
GC begins an automated maintenance task, the Headspace settings will change appropriately.
The GC will not begin automated maintenance if the Headspace is preparing samples. Placing
the GC into its maintenance mode also places the Headspace in maintenance mode. See the
GC’s Maintaining Your GC manual for more information.
The GC touchscreen or browser interface also provide access to the following automated
Headspace maintenance procedures:
•Install/remove a transfer line to the GC inlet
•Install/remove fused silica from the transfer line
•Replace the sample probe
•Replace the sample loop
•Replace the six port valve
•Replace the rotor
•Clean the six port valve and rotor
•Clean the oven
•Clean the sample tray assembly
The automated procedures provide step-by-step instructions for your specific HS and GC
configuration. In addition, they also cool down hot zones, adjust gas flows to safe levels for the
task as needed, perform leak tests and other checks, and automatically reset any relevant
Early Maintenance Feedback (EMF) counters. Access them from the touchscreen or browser
interface: Maintenance > Headspace > Perform Maintenance.
Agilent recommends using the automated procedures available at the GC touchscreen or
browser interface whenever possible.
While each maintenance procedure described in this manual refers to its automated version,
each procedure still provides all of the steps needed to complete each task.

1 About Maintaining the Headspace Sampler
Tools and Materials Required for Maintenance
8Maintenance Manual
Tools and Materials Required for Maintenance
Table 1 lists the tools needed for most Headspace maintenance procedures. The specific
tools required to perform a maintenance procedure are listed in step 1 of the procedure.
Safety
Before performing a maintenance task, read the important safety and regulatory information
found in the 8697 Headspace Sampler Safety manual.
Table 1 Required Tools
Too l Description
T- 2 0 To r x D river
T- 20 Torx Key (for working in limited space)
Long T- 20 Torx Driver
Needle nose pliers
3/16-inch wrench
1/4-inch wrench
Two 5/16-inch wrenches
7/16-inch wrench
Column cutter wafer
Lab tissue
Isopropanol (for cleaning fused silica column ends)
Clean, lint-free gloves
Pencil magnet (for placing a valve rotor)
Shop vacuum/vacuum cleaner (for cleaning up broken vial glass)

Maintenance Manual 9
2Removing Covers and Components
Automated Maintenance Procedures and Covers 10
Install/Remove the Transfer Line Support Bracket 11
Remove the Pneumatics Cover 12
Remove the Valve Thermal Enclosure 13
Install the Valve Thermal Enclosure 14
Remove the Pneumatics Assembly 15
Remove the Valve/Loop Cover 18
Remove the Tray Assembly 19
This section describes how to remove covers and components as needed for routine
maintenance.
Only the covers and components listed in this chapter should be removed. Removing other
Headspace covers can compromise the safety features of the instrument, leading to personal
injury or damage to the instrument.

2 Removing Covers and Components
Automated Maintenance Procedures and Covers
10 Maintenance Manual
Automated Maintenance Procedures and Covers
Normally, removing covers is performed as part of some other maintenance. If using the
automated maintenance procedures, that procedure will cool down any hot parts and will
show you how to remove the covers as needed. If not using the automated maintenance
tasks, you must first cool the Headspace heated zones on your own.

2 Removing Covers and Components
Install/Remove the Transfer Line Support Bracket
Maintenance Manual 11
Install/Remove the Transfer Line Support Bracket
1If necessary, remove any existing ALS post from the mounting hole next to the transfer
line.
2Place the transfer line support bracket on the inlet carrier cover. The locater holes in the
support bracket should align over the holes for the inlet ALS injector post and the raised
mounting detail. See the figures below.
3Locate the knurled thumbscrews provided in the HS ship kit transfer line support
assembly.
4Install the long knurled thumbscrew into the inlet cover through the transfer line support
bracket.
5Install the short knurled set screw into the bracket. Make sure it does not protrude beyond
the back side of the bracket (otherwise it will interfere when placing the transfer line).
Figure 1. Mounting location for support bracket, 8890 inlet carrier cover shown
Back mounting
detail
Front mounting
detail
Back mounting
post hole
Front mounting
post hole
8890 and 8860 Inlet carrier cover 9000 GC top
Mounting detail
Mounting post
hole
Figure 2. Install the short knurled set screw into the bracket
Knurled thumbscrew
Transfer line
Support bracket
Knurled thumbscrew

2 Removing Covers and Components
Remove the Pneumatics Cover
12 Maintenance Manual
Remove the Pneumatics Cover
The pneumatics cover protects the valve thermal enclosure and transfer line. To remove the
pneumatics cover:
1Press the Park button on the front of the tray to “park” the tray.
2Remove the T-20 screw that secures the cover in place (Figure 3).
Figure 3. Remove the T-20 Torx screw from the pneumatics cover
3Slide the cover out, then lift to remove.
Reinstallation is the reverse of these steps.
WARNING
The valve thermal enclosure and its contents may be hot enough to cause burns.
Pneumatics cover

2 Removing Covers and Components
Remove the Valve Thermal Enclosure
Maintenance Manual 13
Remove the Valve Thermal Enclosure
The valve thermal enclosure protects the 6 port valve and sample loop. To remove the valve
thermal enclosure:
1Remove the pneumatics cover. See “Remove the Pneumatics Cover” on page 12.
WARNING
The valve thermal enclosure and its contents may be hot enough to cause burns.
2Cool down the sample loop and sample probe to a safe handling temperature. If you will
disconnect the transfer line from the Headspace, cool down the transfer line and GC
column oven as needed.
3Carefully lift the valve thermal enclosure straight up and off of the Headspace (Figure 4).
Figure 4. Lift the valve thermal enclosure straight up

2 Removing Covers and Components
Install the Valve Thermal Enclosure
14 Maintenance Manual
Install the Valve Thermal Enclosure
To install the valve thermal enclosure:
1Locate the valve thermal enclosure’s transfer line cutout, and align it with the transfer line
(Figure 5).
Figure 5. The valve thermal enclosure’s transfer line cutout
2Align the valve thermal enclosure over the sample valve and loop cover. Carefully lower the
valve thermal enclosure over the valve and loop areas with the transfer line cutout facing
the left side of the Headspace.
CAUTION
Be sure to not damage the transfer line and other nearby cables when lowering the valve
thermal enclosure.
Transfer line cutout

2 Removing Covers and Components
Remove the Pneumatics Assembly
Maintenance Manual 15
Remove the Pneumatics Assembly
Remove the pneumatics assembly (Figure 6) to access the oven components.
Figure 6. Pneumatics assembly without covers
To remove the pneumatics assembly:
1Set your GC oven, Headspace oven, sample loop, and transfer line to ambient
temperatures and wait for them to cool.
Alternatively, place the GC and Headspace in maintenance mode: Maintenance >
Instrument > Perform Maintenance > Maintenance Mode > Start Maintenance.
2Once the GC oven, Headspace oven, sample loop, and transfer line have cooled to ambient
temperature, turn the Headspace off and unplug the power cord.
3Turn all gas flows off at their sources, and if necessary, disconnect the gas lines at the
pneumatics assembly back panel.
4Remove the pneumatics cover. See “Remove the Pneumatics Cover” on page 12.
5Remove the valve thermal enclosure. See “Remove the Valve Thermal Enclosure” on
page 13.
6Remove the valve/loop cover. See “Remove the Valve/Loop Cover” on page 18.

2 Removing Covers and Components
Remove the Pneumatics Assembly
16 Maintenance Manual
7Loosen the 3/16-inch nut in the internal reducer (Figure 7). (Stabilize the valve fitting using
a 1/4-inch wrench.)
Figure 7. 3/16-inch internal reducer with valve cover removed.
8Remove the fused silica column from the internal reducer.
9Loosen the 1/4-inch nut and remove the reducer fitting. (To reuse the internal reducer,
remove the polyimide graphite ferrule by tapping the reducer on the benchtop.)
10 Disconnect the transfer line from the GC. See “Disconnect the Transfer Line from the
GC” on page 50.

2 Removing Covers and Components
Remove the Pneumatics Assembly
Maintenance Manual 17
11 Loosen the 6 screws that secure the pneumatics assembly to the chassis. Note that one
screw is on the side of the assembly. (Figure 8).
Figure 8. Loosen the screws that secure the pneumatics assembly
CAUTION
Do not remove the pneumatics assembly completely. Be careful to not damage any attached
cables and gas lines when moving the pneumatics assembly.
12 Lift the pneumatics assembly straight up, rotate the assembly about 90-degrees
counterclockwise, and lay it across the back of the Headspace.
Reinstallation is the reverse of these steps.

2 Removing Covers and Components
Remove the Valve/Loop Cover
18 Maintenance Manual
Remove the Valve/Loop Cover
1Gather the following:
•T-2 0 To r x dr i ver
2Remove the pneumatics cover. See “Remove the Pneumatics Cover” on page 12.
3Remove the valve thermal enclosure. See “Remove the Valve Thermal Enclosure” on
page 13.
4Completely loosen the three T-20 Torx captive screws on the valve/loop cover (Figure 9).
Figure 9. Valve/loop cover
5Remove the valve/loop cover.
Reinstallation is the reverse of these steps.
Valve/loop cover

2 Removing Covers and Components
Remove the Tray Assembly
Maintenance Manual 19
Remove the Tray Assembly
1Gather the following:
•Lint-free gloves
2Set your GC oven, Headspace oven, and transfer line to ambient temperatures and wait for
them to cool.
3Once the GC oven, Headspace oven, and transfer line have cooled to ambient temperature,
turn the Headspace off and unplug the power cord.
4Turn all gas flows off at their sources.
5Remove all sample vials and vial racks.
6Disconnect the tray cable from the mainframe.
7Loosen the three screws that secure the tray to the mainframe. (Figure 10)
Figure 10. Loosen three retained screws
8Lift the tray assembly off of the Headspace and place it on a flat surface.
Reinstallation is the reverse of these steps. When re-installing, you may need to align the tray
over the back alignment posts first, then pivot the tray down and over the forward post.

2 Removing Covers and Components
Remove the Tray Assembly
20 Maintenance Manual