3 EATON 420 Mobile Piston Pump Technical Manual E-PUPI-TM002-E4 November 2014
Table of Contents
Model Codes .....................................................................................................4
Specifications and Performance .....................................................................................6
Control Options
Load Sense and Pressure Compensator .......................................................................7
Pressure Compensator ......................................................................................8
Torque Control ............................................................................................9
EH Inverse Proportional Pressure Control (IPPC) ................................................................10
Remote Pressure Control ...................................................................................11
Cold Start Valve ...........................................................................................12
Performance
ADU041 .................................................................................................13
ADU049 .................................................................................................16
ADU062 .................................................................................................19
ADU080 .................................................................................................22
Pump Installation
B-mount – Rear-ported .....................................................................................25
B-mount – Side-ported .....................................................................................26
C-mount – Rear-ported .....................................................................................27
C-mount – Side-ported ....................................................................................28
Thru-Drive SAE A Option ...................................................................................27
Thru-Drive SAE B Option ...................................................................................29
Dual Shaft Seal Option .....................................................................................30
Control Installation
Load Sense and Pressure Compensator ......................................................................32
Pressure Compensator .....................................................................................33
Torque Control ...........................................................................................34
EH Inverse Proportional Pressure Control (IPPC) ................................................................35
Cold Start Valve ...........................................................................................36
External Manual Stroke Adjustment ................................................................................37
Input Shaft Options ...............................................................................................38
Center of Gravity .................................................................................................41
Installation and Start-up ...........................................................................................42
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