20412906
8-2012/Rev 11
iii
Booster Pump Adjustment ..................................................................... 5-5
6 Recirculation System ........................................................................................ 6-1
6.1 Overview ................................................................................................ 6-1
6.2 Operation (Oil-to-Water Models) .......................................................... 6-1
6.3 Operation (Oil-to-Air Models) ............................................................... 6-3
6.4 Service and Maintenance Procedures .................................................... 6-4
Hydraulic Oil Maintenance .................................................................... 6-4
Electric Motor Bump ............................................................................. 6-6
Oil Filter Maintenance ........................................................................... 6-7
Operating Temperature Adjustment (Oil-to-Water Models) ................. 6-8
7 Hydraulic System .............................................................................................. 7-1
7.1 Overview ................................................................................................ 7-1
7.2 Optional System Components................................................................ 7-2
7.3 Operation................................................................................................ 7-2
7.4 Service and Maintenance Procedures .................................................... 7-4
Hydraulic Operating Pressure ................................................................ 7-4
Proportional Valve Maintenance ........................................................... 7-6
Motor Maintenance ................................................................................ 7-6
Flexible Coupling Replacement ............................................................. 7-7
Hydraulic Compensator Maintenance .................................................... 7-9
Hydraulic Pump or Electric Motor Replacement ................................... 7-12
Hydraulic Oil Replacement .................................................................... 7-16
Electric Motor Bump ............................................................................. 7-17
8 Electrical System ............................................................................................... 8-1
8.1 Overview ................................................................................................ 8-1
8.2 Optional System Components................................................................ 8-1
8.3 Operation................................................................................................ 8-2
Sensors and Solenoids............................................................................ 8-5
Softstarter ............................................................................................... 8-9
8.4 Service and Maintenance Procedures .................................................... 8-10
Proximity Switch Maintenance .............................................................. 8-11
Optical Relay Maintenance .................................................................... 8-12
9 High Pressure Water System ........................................................................... 9-1
9.1 Overview ................................................................................................ 9-1
9.2 System Options ...................................................................................... 9-2
9.3 Operation................................................................................................ 9-2
Redundant Intensifiers ........................................................................... 9-3
9.4 System Components............................................................................... 9-5
9.5 Service and Maintenance Overview ...................................................... 9-6
Torque Specifications ............................................................................ 9-7
Specialized Maintenance Tools ............................................................. 9-9
9.6 High and Low Pressure Water Piping .................................................... 9-10