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Valves
2. Loosen the 4 head bolts (1).
3. Remove the he ad (2).
4. Change the valves (3) - note their or ientation, so that they are
replace d correctly!
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ATTENTION! It is recommended to use new gaskets (4 ), when
changing or checking the valves.
Diaphragms
5. Loosen the diaphragm bolt (5).
6. Remove the diaphragm washer (6 ).
7. The diaphragm (7) may then be changed.
8. Check that the drain hole (8) at the bottom of the pump is not
blocked.
9. Apply a small amount of pump grease on the underside of the
diaphragms (between diaphragm and conrod washer).
10. Reassemble the pump with the following torque setting.
• Diaphragm head bolts (1): 90 Nm.
• Diaphragm bolt (5 ): 9 0 Nm.
11. Refit the plastic covers (C).
12. NOTE! The diaphragm bolt on 100 0 r. p .m. pumps must be secured with a locking compound.
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ATTENTION! Be fore tightening the 4 bolts for the head (2 ), the
diaphragm must be positioned between centre and top to
ensure cor rect sealing between diaphragm pump housing and
diaphragm cover. Tur n the cr ank shaft if necessary.
Lubric ation A fter As sembly
After disassembling the pump (diaphragm renewal, etc. ) , the pump
MUST be lubricated with 200 g grease into each lubrication point.
HARDI pump grease cartridge (4 00g): HARDI item no. 28 164600
Overhaul Kit
Pump model: 464
Diaphr agm pump overhaul kit (valve s, seals, diaphr agms etc. ) can be
ordered. Detect the pump model - the overhaul kit can be ordered by
your local dealer.
M odel 4 64: HARDI item no: 75586 000
6 - Maintenance
1
5
6
3
7
3
4
8
C
2
3
4
C
165
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