General pump – General Pump T16A-18A-20A-22A User Manual

Page 16

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GENERAL PUMP

A member of the Interpump Group

KT16A/18A/20A/22A SERIES

Page 16

Pay attention to the order of seal pack disasembly as indicted in fig. 31 for KT20A and KT22A,

and in fig. 31/a for KT16A and KT18A, composed of:

1. Head ring

2. HP seals

3. Restop ring

4. Seals support

5. LP seals

6. Seal ring

7. O-ring

Check and verify their conditions, replace if necessary

At every disassembly all o-rings on the piston unit must be replaced.

Ref 300942 Rev.A

03-14

2.2.4 Dismantling the Piston Unit

The piston unit does not require any routine maintenance. Maintenance is limited to visual checks only. To

extract piston units: loosen the M7x1 piston fixing screws as indicated in fig. 32.

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