iv
Electrical Safety ...................................................................................................42
Fuses ...................................................................................................................42
Safety Procedures ...............................................................................................43
5.3 Test Preparation ...................................................................................................44
Mounting the Front of the Engine ......................................................................... 44
Mounting the Engine ............................................................................................44
Dyno Shaft Connection ........................................................................................45
5.4 Engine Water Cooling System .............................................................................46
5.5 Throttle System ....................................................................................................47
5.6 Sensor Connections .............................................................................................48
Stand Connections ...............................................................................................48
Engine Connections .............................................................................................48
5.7 Running an Automated Test .................................................................................49
Infrastructure and Engine Setup ..........................................................................49
Operator Console and Computer .........................................................................51
Test Group Dialog ................................................................................................52
WinDyn Prep ........................................................................................................52
WinDyn Setup Dialog ...........................................................................................52
ValPos Adjustment ...............................................................................................53
Running a Test .....................................................................................................54
Post Test ..............................................................................................................55
Shutdown .............................................................................................................55
5.8 Analyzing the Test Results ...................................................................................56
6.0 Maintenance ................................................................................................................58
6.1 Maintenance Schedule ........................................................................................58
6.2 SF-902S Maintenance .........................................................................................59
Water Filters ......................................................................................................... 59
Automatic Water Fill Valve ...................................................................................59
Fuel Filters ...........................................................................................................60
Speed Pickup .......................................................................................................60
Absorber Water Pump Seal .................................................................................61
Pump Seal Replacement .....................................................................................62
6.3 Calibration ............................................................................................................63
6.4 2640 Circuit Board LEDs ....................................................................................65
7.0 Troubleshooting ..........................................................................................................66
7.1 Servo Valve ..........................................................................................................66
Manual test mode: ...............................................................................................66
Automated test mode: ..........................................................................................67
Control Electronics: ..............................................................................................68
Servo Valve Diagnosis: ........................................................................................70
7.2 Absorber ..............................................................................................................71
7.3 Water System.......................................................................................................74
8.0 Appendix .....................................................................................................................75
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