Hardi N Series User Manual

56 HARDI
®
N-SERIES 3-PT SPRAYER DIAPHRAGM OPERATOR'S MANUAL
6.6 Changing the Valves and Diaphragms (all pumps)
Note: It is recommended that if one or more diaphragms and or valves
need replacing, they should all be replaced. Complete rebuild kits are
available from HARDI
®
(check the table below for part numbers).
1. Remove the valve cover 1. Before changing the valves 2, note the
orientation of the valves so that they are replaced correctly.
2. It is recommended to use new O-rings 3 when changing or checking
valves.
3. Remove diaphragm covers 4 to gain access to the diaphragms.
4. Remove the diaphragm bolts 5. The diaphragms 6 may now be
changed.
5. If fl uids have reached the crankcase, regrease the pump thoroughly.
Also make sure the drain hole at the bottom of the pump is not
blocked.
6. Reassemble with torque settings shown below.
4
1
2
3
5
6
Model 1203
(603 similar)
4
2
3
1
5
6
Model 1303
Pump
Model
Valve Cover
Ft/lb (Nm)
Diaphragm
Bolt Ft/lb (Nm)
Diaphragm
Cover
603 34 (46) 18.5 (25) 37 (50)
1203/1303 45 (60) 45 (60) 50 (70)
Pump model 603 1203 1303
Hardi
®
Part No. 750656 750696 750175

Hardi N Series Specifications

General

Brand	Hardi
Model	N Series
Category	Paint Sprayer
Language	English