7
INSTALLATION INSTRUCTIONS
HIGH PRESSURE PUMP
To minimize vibration, it is best to build brackets on the motor itself, similar to alternator brackets. Use
cardboard to construct a pattern first before making these brackets.
The high-pressure pump has a maximum RPM of 1750. The recommended working RPM is 1450.
Minimum RPM for ECHOTec watermaker models:
400 - 500:
900 RPM
600 - 900:
1050 RPM
1200 - 1500: 1225 RPM
The high-pressure pump can run on lower RPM. This will decrease the specified production only.
Position the high-pressure pump horizontal with the dipstick up. The pump can turn in either direction.
Ensure proper pulley diameter on your engine. The electromagnetic clutch has a pulley diameter of
7”/177mm.
To determine the proper motor pulley size, use the formula below as a guideline.
PUMP PULLEY DIAMETER 7”/177mm X
RPM PUMP
= MOTOR PULLEY DIAMETER
RPM MOTOR
CAUTION: Re-tighten all fasteners after 50 hours of operation and check frequently for
belt tension and chafing of high-pressure hoses.
