Agilent Technologies 1290 Infinity II Instruction Manual

Agilent Technologies
Agilent 1290 Infinity II
Long Life Pump Head
Technical Note
This Technical Note describes installation and maintenance of Long Life Pump Heads
for Agilent 1290 Infinity and 1290 Infinity II pumps.
Contents
Introduction 2
Long Life Upgrade Kit (Binary and High Speed Pumps) 3
Long Life Upgrade Kit (Quaternary and Flexible Pumps) 3
Remove Pump Heads (Binary and High Speed Pumps) 4
Remove Pump Heads (Quaternary and Flexible Pumps) 7
Replace the Pump Drives (Binary and High Speed Pumps) 10
Replace the Pump Drive (Quaternary and Flexible Pumps) 12
Pump Head Maintenance (Tool Free) 13
Install Long Life Pump Heads (Binary and High Speed Pumps) 24
Install Long Life Pump Heads (Quaternary and Flexible Pumps) 26
Pump Head Parts 28
Seal Wash Function 33
Install the Seal Wash Function (Binary Pump) 33
Install the Seal Wash Function (Quaternary Pump) 35
Seal Wash Upgrade Kit (Binary Pump) 38
Seal Wash Upgrade Kit (G4204A) 39
Upgrade the Valve Support (G4204A only) 40

2
Introduction
Introduction
Long Life Pump Heads are available for the following pump types:
•1290 Infinity Quaternary Pump (G4204A)
•1290 Infinity Binary Pump (G4220A/B)
•1290 Infinity II Flexible Pump (G7104A)
•1290 Infinity II High Speed Pump (G7120A)
Upgrading a pump from conventional pump heads to Long Life Pump Heads requires
the exchange of the pump drive(s).

3
Long Life Upgrade Kit (Binary and High Speed Pumps)
Long Life Upgrade Kit (Binary and High Speed Pumps)
Long Life Upgrade Kit (Quaternary and Flexible Pumps)
Item p/n Description
G4220-60250 Drive Unit Channel A Pendulum
G4220-60260 Drive Unit Channel B Pendulum
G4220-60350 Long Life Pump Head Channel A
G4220-60360 Long Life Pump Head Channel B
80515-6154 Screw-Socket-HD-Cap Hex-Recess M5X0.8 40
01200-90121 Agilent 1290 Infinity II Long Life Pump Head Technical Note
5067-6197 Seal Handling Device
5043-1400 Pump Head Holder
G4220-68712 1290 Infinity Binary Pump Seal Wash Pump Kit
01200-90091 1290 Infinity Pump Quick Reference Sheet
Item p/n Description
G4220-60250 Drive Unit Channel A Pendulum
G4220-60350 Long Life Pump Head Channel A
40515-6154 Screw-Socket-HD-Cap Hex-Recess M5X0.8 40
01200-90121 Agilent 1290 Infinity II Long Life Pump Head Technical Note
5067-6197 Seal Handling Device
5043-1400 Pump Head Holder
G4204-68712 Seal Wash Upgrade Kit for 1290 Quaternary Pump
G4204-04000 Valve Support
G7104-20000 HP Filter Housing
G4204-60004 Outlet filter 1290 Infinity Quaternary Pump
5067-4656 Capillary ST, 0.25 mm x 80 mm
01200-90091 1290 Infinity Pump Quick Reference Sheet

4
Remove Pump Heads (Binary and High Speed Pumps)
Remove the Pump Head Assembly
Remove Pump Heads (Binary and High Speed Pumps)
The following procedure shows how to remove a pump head from a High Speed Pump
(G7120A). Removing pump heads from Binary Pumps (G4220A/B) can be done in the
same way.
Remove the Pump Head Assembly
Tools required p/n Description
G7120-68708 HPLC System Tool Kit-Infinity-II
NOTE
This procedure describes the replacement of the left pump head assembly (channel A). Similarly,
the right pump head assembly (channel B) can be replaced.
One pump head assembly consists of two pump heads, which are both removed at the same time.
1 In Lab Advisor go to Service & Diagnostics > Remove/Install
Pump Head and follow instructions given on the screen.
2 Open the doors.
3 Close all shut-off valves. 4 Remove the seal wash tubes.

5
Remove Pump Heads (Binary and High Speed Pumps)
Remove the Pump Head Assembly
5 Remove the capillary connection at the top of the secondary
pump head to the pump valve.
6 Remove the flow connection between the degassing unit and
the primary pump head inlet.
7 Loosen the inlet valve. Keep the inlet valve installed to the
pump head assembly.
8 Counter the lock screw of the heat exchanger capillary while
loosening the outlet valve. Keep the outlet valve installed to
the pump head assembly.
9 Loosen the high pressure filter. Keep the filter installed to the
pump head assembly.
10 Open the four screws holding the pump heads.
NOTE
Open the screws step by step, not screw by screw.

6
Remove Pump Heads (Binary and High Speed Pumps)
Remove the Pump Head Assembly
11 Remove the complete pump head assembly by holding both
heads and pulling it to the front.
12 Remove the seal wash tubing interconnecting the two pump
heads.

7
Remove Pump Heads (Quaternary and Flexible Pumps)
Remove the Pump Head Assembly
Remove Pump Heads (Quaternary and Flexible Pumps)
The following procedure shows how to remove a pump head from a Flexible Pump
(G7104A). Removing pump heads from Quaternary Pumps (G4204A) can be done in
the same way.
Remove the Pump Head Assembly
Tools required p/n Description
G7120-68708 HPLC System Tool Kit-Infinity-II
1 In Lab Advisor go to Service & Diagnostics > Remove/Install
Pump Head and follow instructions given on the screen.
2 Open the doors.
3 Remove the seal wash tubes. 4 DO NOT REMOVE the heat exchanger connection between the
pump heads marked by the red X.
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8
Remove Pump Heads (Quaternary and Flexible Pumps)
Remove the Pump Head Assembly
5 Remove the capillary connection from the outlet adapter on the
secondary pump head to the pressure sensor.
6 Open the black plastic screw of the inlet valve at the bottom of
the primary pump head.
7 Turn the inlet valve 90 ° counterclockwise (1) and remove the
inlet weaver from the inlet valve (2).
8 Loosen the inlet valve. Keep the inlet valve installed to the
pump head assembly.
9 Counter the lock screw of the heat exchanger capillary while
loosening the outlet valve. Keep the outlet valve installed to
the pump head assembly.
10 Remove the four screws holding the pump heads.
NOTE
Open the screws step by step, not screw by screw.
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9
Remove Pump Heads (Quaternary and Flexible Pumps)
Remove the Pump Head Assembly
11 Remove the complete pump head assembly by holding both
heads and pulling it to the front.
12 Remove the seal wash tubing interconnecting the two pump
heads.

10
Replace the Pump Drives (Binary and High Speed Pumps)
Remove the Pump Head Assembly
Replace the Pump Drives (Binary and High Speed Pumps)
When If the pump drive is damaged.
Parts required p/n Description
G4220-60250 Drive Unit Channel A Pendulum
G4220-60260 Drive Unit Channel B Pendulum
Preparations •Bring the pump drives to their maintenance position and remove the pump heads
•Remove the main board
•Remove the middle layer foam
CAUTION
Sensitive pump drive encoder
The pump drive encoder can be damaged easily.
➔ Do not apply tension to it during removal or installation.
NOTE
This procedure describes the removal of the pump drive assembly for channel A. One pump drive
assembly consists of two individual drives that are connected.
1 Remove the cables from the pump drive encoders. 2 Disconnect the power cables from the pump drive.

11
Replace the Pump Drives (Binary and High Speed Pumps)
Remove the Pump Head Assembly
3 Carefully lift out the pump drive assembly by holding it at the
pump drive and lifting it out of the front cover and bottom foam
part. Do not pull at the pump encoder or otherwise apply force
to it.
4 Insert the new pump drive assembly such that it aligns with
the module housing. Do not confuse the left and the right
assembly. The figure shows the horizontal alignment of bolts
for connection to the pump heads.
5 Connect the pump drive to the power cables. Looking from the
front of the module, pump drives are numbered 1 to 4 from left
to right (in figure bottom to top). Cables are labeled and need
to be connected accordingly.
6 Connect the pump drive encoders to the encoder cable tree.
Make sure the connectors are pushed in completely.
Next Steps:
7 Reinstall the middle layer foam.
8 Reinstall the main board and reconnect all cables.
9 Reinstall the top foam, the top plate and the top cover.
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12
Replace the Pump Drive (Quaternary and Flexible Pumps)
Remove the Pump Head Assembly
Replace the Pump Drive (Quaternary and Flexible Pumps)
When If the pump drive is damaged
Parts required #p/n Description
1G4220-60100 Pump Drive, Channel A
OR 1G4220-60250 Drive Unit Channel A Pendulum
15043-0887 Pump Drive Fastener
1G4204-81601 Cables for Pump Drive Motor 1290 Infinity Quaternary Pump
1G4204-81602 Cables for Pump Drive Encoder 1290 Infinity Quaternary Pump
Preparations •Bring the pump drive to its maintenance position and remove the pump head.
•Remove the top cover and foam.
•Remove the main board and middle layer foam part.
CAUTION
Damage of the pump piston
Removing pump heads in a position other than the maintenance position can damage the
pump piston.
➔ Before switching off the pump, bring it to the maintenance position.
1 If required for replacement, unplug pump drive encoder cables
and disconnect the cable for the pump drive motors.
2 Lift up the pump drive assembly from the rear.
Next Steps:
3 Insert the new pump drive and connect cables for the encoders and drives. Route encoder cables through the lower level foam part
as indicated above.
4 Reinstall the middle layer foam.
5 Reinstall the main board and reconnect all cables.
6 Reinstall the top foam, the top plate, and the top cover.
Encoder cables
Motor cables

13
Pump Head Maintenance (Tool Free)
Disassemble Long Life Pump Heads
Pump Head Maintenance (Tool Free)
1290 Infinity II Flexible Pumps (G7104A) and 1290 Infinity II High Speed Pumps
(G7120A) are equipped with Long Life Pump Heads.
Long Life Pump Heads offer a significantly increased lifetime of pistons and seals
compared to other pump heads.
Maintenance of Long Life Pump Heads requires no special tool.
The following procedures explain the maintenance of Long Life Pump Heads.
Disassemble Long Life Pump Heads
This procedure shows how to open the pump head assembly, exchange seals, and clean
pistons.
Exchanging seals and cleaning pistons is exemplarily shown for the primary pump
head, but works in the same way for the secondary pump head.
Tools required p/n Description
G7120-68708 HPLC System Tool Kit-Infinity-II
5043-1400 Pump Head Holder
5067-6197 Seal Handling Device
8660-0852 Abrasive mesh
Isopropanol
NOTE
Seals must be exchanged and pistons must be cleaned in both primary and secondary pump heads.
1 Counter the outlet valve while opening the lock screw of the
heat exchanger capillary.
2 Remove the heat exchanger capillary by pushing the connector
up and pulling it out of the valve.
NOTE
A gold seal between outlet valve and heat exchanger
capillary is used for a tight connection.
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14
Pump Head Maintenance (Tool Free)
Disassemble Long Life Pump Heads
3 Turn the pump head assembly upside down. 4 Remove the link plate by gently pulling it off the pump head
assembly.
The two pump chambers are now isolated.
5 Remove the inlet valve and the outlet valve from the primary
pump head.
NOTE
Clean the valves by sonication, if appropriate. A good
cleaning solution is 50 % isopropanol in water.
6 Binary/High Speed Pumps only: Remove the high pressure
filter from the secondary pump head.
7 Place the two pump heads in the Pump Head Holder. 8 Remove the pump head screws from the back of the pump
heads.

15
Pump Head Maintenance (Tool Free)
Disassemble Long Life Pump Heads
9 Open the pump heads and remove the piston housings from
the pump chambers.
10 Remove the piston by pressing it out of the seal holder with a
finger.
11 Remove the seal holder from the spring housing. 12 Screw the pin of the seal handling device into the piston seal.
13 Pull out the Seal Handling Device with the piston seal in a
straight movement with only gentle force.
14 Repeat for the other pump chamber.

16
Pump Head Maintenance (Tool Free)
Disassemble Long Life Pump Heads
15 Screw the pin of the seal handling device into the wash seal.
NOTE
The seal holder has two different sides. The black
backup ring is supporting the piston seal and must not
be removed. The side with the backup ring has a bigger
diameter and a sharp edge to hold the piston seal. The
other side has no sharp edge and holds the smaller
wash seal.
16 Pull out the Seal Handling Device with the wash seal in a
straight movement with only gentle force.
17 Repeat for the other seal holder. 18 Clean the piston with abrasive paper.
19 Rinse pump heads and pistons with isopropanol.

17
Pump Head Maintenance (Tool Free)
Replace the Heat Exchanger
Replace the Heat Exchanger
Tools required p/n Description
Wrench, 19 mm
5023-2501 Screwdriver Torx-T10
5067-5688 To r q ue w r e n c h 1 – 2 5 Nm with 14 mm wrench
G4220-20013 4 mm hex bit
G4220-20015 Adapter ¼ in square to hex
G4220-20041 Bit Torx 10x25 mm
Parts required p/n Description
G4220-81013 Heat Exchanger Channel A (secondary pump head only)
(all pumps)
G4220-81012 Heat Exchanger Channel B (secondary pump head only)
(Binary and High Speed Pumps only)
Preparations •Remove the pump head assembly from the pump
•Remove the secondary pump head from the link plate
CAUTION
Loss of small spacer fitting
Inside the secondary pump head is a small spacer fitting, which can be dropped easily when
removing the heat exchanger.
➔ The heat exchanger does not need to be removed for pump head maintenance.
1 Remove the 19 mm screw at the front of the secondary pump
head.
2 Remove the front plate.

18
Pump Head Maintenance (Tool Free)
Replace the Heat Exchanger
3 Remove the screw at the bottom of the pump head. Do not
drop the golden spacer fitting.
4 Lift out the heat exchanger.
5 If removed, first insert the spacer fitting. Then insert the new
heat exchanger to the opening in the pump head and lift it over
the pins.
6 Use the 19 mm screw for fixing the front plate.
7 Insert and fix the screw.
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approx.

19
Pump Head Maintenance (Tool Free)
Assemble Long Life Pump Heads
Assemble Long Life Pump Heads
This procedure shows how to exchange seals, and reassemble the pump head
assembly.
Exchanging seals is exemplarily shown for the primary pump head, but works in the
same way for the secondary pump head.
Tools required p/n Description
G7120-68708 HPLC System Tool Kit-Infinity-II
5067-5688 To r q ue w r e n c h 1 – 2 5 Nm with 14 mm wrench
G4220-20013 4 mm hex bit
G4220-20015 Adapter ¼ in square to hex
G4220-20041 Bit Torx 10x25 mm
5043-1400 Pump Head Holder
5067-6197 Seal Handling Device
Isopropanol
Parts required #p/n Description
20905-1719 PE Seal
20905-1175 Wash seal (PTFE)
NOTE
Seals must be exchanged in both primary and secondary pump heads.
1 Lubricate the seals, the seal holder, and the pump chambers
with isopropanol.
2 Place the piston seal onto the designated nose of the Seal
Handling Device. The metal spring of the piston seal must be
visible.

20
Pump Head Maintenance (Tool Free)
Assemble Long Life Pump Heads
3 Take care that the Seal Handling Device is seating flush and
press the seal into the pump chamber.
4 Repeat for the other pump chamber.
5 Place the seal holder onto the pump chamber.
NOTE
Mind the correct orientation of the seal holder. The backup
ring must face down.
6 Place the wash seal onto the designated nose of the Seal
Handling Device. The metal spring of the wash seal must be
visible.
7 Take care that the Seal Handling Device is seating flush and
press the wash seal into the seal holder.
NOTE
The Seal Handling Device has a cavity to fit over the pins of
the seal wash tubings.
8 Repeat for the other seal holder.
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