
English-
1
Contents
Contents ..................................................................1
Safety Instructions .................................................3
General Instructions ............................................3
Special Instructions .............................................3
Risk of sparking ..................................................4
Special Tools ..........................................................5
Laser tachometer ...................................................7
Safety ..................................................................7
Measure speed ...................................................7
Read the last, highest and lowest values ............7
Replace the batteries ..........................................7
Maintenance .......................................................7
Specifications .........................................................9
Delivery and Dealer Service ................................15
Delivery Service ................................................15
After the First 8 Hours .......................................15
After the first 50 hours .......................................15
25-Hour Service ................................................15
50-Hour Service ................................................15
100/200-Hour Service .......................................15
300-Hour Service ..............................................16
At Least Once Each Season .............................16
Service Schedule ..............................................17
Delivery Procedures ..........................................20
Battery ...............................................................22
Arm Supports ....................................................22
Steering Wheel .................................................23
Towing Eye and Counterweight ........................23
Checking the Engine Oil Level ..........................23
Check the Oil Level in the Hydraulic Tank ........24
Wheels ..............................................................24
Skid Guard ........................................................24
Checking and Adjusting the Cutting Unit ..........25
Test Running .....................................................25
Starting the Engine ...........................................25
Engine Speed Regulator ...................................26
Final Inspection .................................................26
Administration ...................................................26
Design and Function ............................................27
General .............................................................27
Cutting unit ........................................................28
Serial Number ...................................................28
Engine ...............................................................29
Steering .............................................................30
Driving ...............................................................31
Cutting Unit .......................................................32
Repair Instructions ..............................................35
Removing the Engine ........................................35
Fitting the Engine ..............................................37
Fuel Tank ..........................................................40
Changing the Engine Oil ...................................41
Checking and Adjusting the Steering Cables ....42
Replacing the Steering Cables .........................43
Removing/Fitting the Power Steering ............... 43
Removing/Fitting the Cable Pulley ................... 44
Adjusting the Parking Brake
PR 17 AWD, PF 21 AWD ................................. 45
Adjusting the parking brake
PR 17, PF 21 .................................................... 45
Adjusting the Hydrostatic Transmission Cable . 46
Checking and Adjusting the Throttle Cable ...... 47
Checking and Adjusting the Choke Cable ........ 47
Replacing the Articulated Steering Bearings .... 47
Removing the Pendulum Shaft ........................ 49
Replacing Bushings ......................................... 50
Fitting the Pendulum Shaft ............................... 50
Drive Axles ....................................................... 51
Front Axle PR 17 AWD, PF 21 AWD ............... 51
Rear Axle ......................................................... 55
Seal Replacement, Outgoing Shafts ................ 58
Replacing the Hydrostatic Transmission Cable 61
Fitting the Hydrostatic Transmission Cable ...... 63
Bleeding the Hydrostatic and Hydraulic
Systems, PR 17 AWD, PF 21 AWD ................. 66
Bleeding the Hydrostatic and Hydraulic
Systems, PR 17, PF 21 .................................... 67
Transmission Maintenance .............................. 68
Adjusting the Lever Housing ............................ 69
Replacing the rear drive belt PR 17, PF 21 ...... 71
Replacing the Hydraulic Pump's Drive Belt,
PR 17 AWD, PF 21 AWD ................................. 74
Replacing the Centre Belt ................................ 77
Replacing the Front Belt ................................... 78
Equipment Frame ............................................. 79
Fitting the Cutting Unit ...................................... 81
Removing the Cutting Unit ............................... 83
The Cutting Unit’s Service Position .................. 84
Placing in the Service Position ......................... 84
Restoring from service position ........................ 86
Adjusting the Unit’s Parallelism and
Cutting Height .................................................. 86
Adjusting the parallelism of the cutting unit ...... 86
Adjusting the Cutting Height Range ................. 87
Checking and Adjusting the Ground Pressure . 87
Changing the Belt on the Cutting Unit .............. 88
Removing Blades with Bearings ...................... 90
Sharpening and Balancing Blades ................... 92
Removing the BioClip plug (Combi) ................. 92
Electrical system ................................................. 93
Wiring diagram PR 17 and PR 17 AWD ........... 93
Electrical system ................................................. 93
Wiring diagram PF 21 and PF 21 AWD ........... 94
Ignition and Starter Lock ................................ 100
Hour Meter ..................................................... 100
Fuses ............................................................. 100
Replacing the Light Bulbs .............................. 101
Safety System ................................................ 102
Workshop Manual for the
Rider PR 17, PR 17 AWD and PF 21, PF 21 AWD