Gilson 402 Changing the Piston Syringes and Piston Noses, Maintenance, 500 µL Piston, mL Piston

Maintenance 6

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.

Changing the Piston Syringes and Piston Noses

6-7