2 684025
Table of Contents
Symbols.............................................................................3
Definition of Terms............................................................3
Warnings...........................................................................3
Specification of Hydra-Cat H.P. Pumps ............................6
Installation .........................................................................6
Connect the Fluid Supply Line....................................6
Connect the Fluid Output Lines ..................................6
System Accessories ...................................................7
Connect the Air Supply Line .......................................7
Pressure Relief Valve .................................................7
Electrical Grounding ...................................................8
Ratio Adjustment...............................................................9
Terms .........................................................................9
Determine the Ratio..................................................10
Relationship Between the Primary and
Secondary Pumps .................................................10
Adjusting the Ratio Setting .......................................10
Operation...................................................................... 11
Pressure Relief Procedure..................................... 11
System Flushing .................................................... 11
Start the Pump....................................................... 11
Standard Operating Flushing................................. 11
Checking the Ratio ................................................ 12
Maintenance................................................................. 12
Wet Cups............................................................... 12
Bearings.................................................................12
Air Lubrication........................................................ 13
Troubleshooting............................................................ 14
Troubleshooting Techniques .................................14
Troubleshooting Chart ...........................................15
Service .........................................................................16
Required Tools ...................................................... 16
Disconnecting the Displacement Pump................. 16
Reconnecting the Displacement Pump ................. 17
Disconnecting the Air Motor................................... 17
Reconnecting the Air Motor ................................... 17
Replacing the Bearings..........................................18
Dimensions................................................................... 19
Air Consumption...........................................................19
Technical Data ............................................................. 21
Graco Information ........................................................22
Graco Standard Warranty ............................................ 22