Gilson 402 - Manual (Page 91)

6-7
Maintenance
6
Changing the Piston Syringes and Piston Noses
Changing the Piston Syringes and
Piston Noses
The piston nose should be replaced after the pump
has performed approximately 30 000 cycles. All
piston noses are replaceable, the process is relatively
easy, but for most pistons (except the 25 mL pistons),
special tools are required to mount the piston nose.
Part Number Description
100 µL Piston: F4015062 5 x piston noses, 2 x support collars and mounting tool (for 100 and
250 µL pistons).
F4015072 1 piston assembly kit
250 µL Piston: F4015063 5 x piston noses and mounting tool (for 100 and 250 µL pistons)
F4015073 1 piston assembly kit
500 µL Piston: F4015064 5 x piston noses and mounting tool kit
1 mL Piston: F4015065 5 x 1 mL piston noses and mounting tool
F4015005 1 nose mounting tool
5 mL Piston: F4015066 1 x piston nose plus O-ring
F4015003 Piston nose mounting kit
10 mL Piston: F4015067 1 x piston nose plus O-ring
F4015004 Piston nose mounting kit
25 mL Piston: F4015068 1 x piston nose
Changing the 100 and 250 µL Piston
Noses
Part Number Description
F4015062 5 x piston noses, 2 x support collars and mounting tool (for 100 and 250 µL pistons)
F4015063 5 x piston noses and mounting tool (for 100 and 250 µL pistons)
To optimize the fitting of the 100 µL and 250 µL
syringes on the syringe pump valve, each syringe is
supplied with a cover seal. The orientation of this
seal must be respected to ensure that the connec-
tion with the syringe is airtight. Figure page 6-10
shows the correct orientation of the cover seal on a
syringe.