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WORKSHOP MANUAL
RIDE-ON LAWN MOWER
ZTH
Contents
Contents
..................................................................1
Safety Instructions
.................................................3
General Instructions.............................................3
Special Instructions..............................................3
Explanation of Symbols
........................................5
Tools
.......................................................................6
Technical Data
........................................................7
Delivery and Dealer Service
................................11
Pre-delivery Service...........................................11
After the First 8 Hours........................................12
25 Hour Service .................................................12
50 Hour Service .................................................12
100 Hour Service ...............................................13
300 Hour Service ...............................................13
At Least Once a Year.........................................14
Maintenance Schedule ......................................15
Delivery Servicing
................................................19
To our Dealers ...................................................19
Removing the Mower from its Packaging ..........19
Delivery Service.................................................20
Test Running......................................................24
Administration ....................................................24
Design and Function
............................................25
General ..............................................................25
Mower Identification...........................................25
Engine................................................................27
Drive and Control...............................................27
Brakes................................................................27
Mower Deck.......................................................28
Repairs
..................................................................29
Engine................................................................29
Adjusting the Throttle Wire.................................31
Checking and Adjusting the Choke Wire ...........32
Fuel tank ............................................................33
Adjusting Motion Control Lever Linkages ..........34
Adjusting Motion Control Lever Spring-back......34
Adjusting the Park Brake ...................................34
Mower Deck.......................................................35
Spindle Blade Bearings.....................................36
Sharpening and Balancing Blades.....................37
Setting the Mower Deck ....................................38
Deck Belt............................................................38
Hydraulic Pump Belt ..........................................40
Front Wheel Bearings ........................................41
Electrical System
................................................ 43
Troubleshooting ................................................ 43
Wiring Assembly ............................................... 43
Battery............................................................... 46
Fuses ................................................................ 46
Relays ............................................................... 47
Starter Motor Contactor..................................... 47
Ignition and Start Switch ................................... 48
Hour Meter ........................................................ 48
Blade Switch ..................................................... 49
Mower Deck Clutch........................................... 49
Motion Control Switches ................................... 50
Park Brake Interlock Switch .............................. 51
Welding ............................................................. 52
Hydraulic System
................................................ 53
Hydraulics Hygiene ........................................... 53
Hydraulic Oils.................................................... 54
Correct Oil Leaks .............................................. 54
Keep Hydraulic Oil Clean.................................. 54
Work Methods................................................... 54
ZTH Hydraulic System ...................................... 55
Hydraulic Tank .................................................. 56
The Cooler for the Hydraulic System ................ 57
Hydraulic Filter .................................................. 57
Hydraulic Lines.................................................. 57
Hydraulic Pump................................................. 58
Hydraulic Motors ............................................... 60
Troubleshooting
.................................................. 61
Engine............................................................... 61
Wiring Harness.................................................. 61
Clutch................................................................ 63
Hydraulic Pump................................................. 66