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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