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MAINTENANCE 

 

STEERING RODS 

 

Should not normally require resetting. 

 

1.

 

Loosen rod lock nut; (a) See Fig. 11. 

 

2.

 

Release the fixing bolt; 

 
3.

 

Turn tie rod end to adjust for length clockwise to shorten, 
anti-clockwise to lengthen; 

 
4.

 

Replace the fixing bolt and tighten; 

 
5.

 

Tighten rod lock nut; 

 
6.

 

Make sure rod is free to pivot. 

 

CUTTER HEAD TILT 
 

This should not normally require resetting. 
 
1.

 

Loosen U-Bracket nuts; (B) See Fig. 12. 

 
2.

 

Adjust nuts up or down to set tilt; 

 
3.

 

Model 178 (965 mm cut) does not require tilt. 
Model 170 (760 mm cut) does require back of blade 
circle tilted 15mm above front of blade circle in low cut 
position’ 
 

4.

 

Retighten all nuts. 

 

STEERING STOPS 
 

This should not normally require resetting. 
1.

 

Check if steering segment gear rotates in both directions 
and contacts peg on chassis. If segment gear contacts then 
stops are correct. If not adjust as follows. 

2.

 

Loosen lock nut on front beam axle and adjust bolt till 
contact is made between segment and peg. Check in both 
directions. 

3.

 

Retighten lock nut. 

 

HEIGHT OF CUT ADJUSTMENT 
 

To adjust the height of 
cut rotate the nyloc nut 
(A) situated under the 
centre of machine on the 
rear cutter support 
assembly. 
Adjust nyloc nut to 
obtain low cut at front of 
blade circle of 15mm. 

 

 
 

SAFETY INTERLOCK SYSTEM 
 

The safety interlock system has been designed for your 
protection and should not be tampered with. It gives the 
Rancher the following characteristics. 
 
The engine will not start unless the speed selector is in the 
neutral position, the cutter drive is disengaged and the 
clutch/brake pedal is depressed. 
 

NOTE: 

The engine should stop if the operator leaves the seat 

with the speed selector and/or the cutter drive 
engaged. 

 

WARNING:

 

If the interlock system fails, see an 

authorized dealer. Do not operate until the 
fault is corrected 

 
CAUTION: Safety switch circuit may become defective if 

wet. Do not spray switches and connections. 

 
STORAGE 
 

Never store engine with fuel in tank indoors or in poor 
ventilated enclosures where fuel may accumulate. 
 
If machine is to be stores over 30 days proceed with the 
following:- 
1.

 

Remove all fuel from carburettor and fuel tank to prevent 

varnish-like gum deposits.

 

2.

 

Remove spark plug and pour 30 ml of engine oil into 
cylinder. Crank engine several times to distribute oil. 
Replace spark plug.

 

3.

 

Clean engine and cooling fins, etc., of any clippings, dirt 
and chaff.

 

4.

 

Clean underside of mower and cutting unit. Paint any 
chips or scratches.

 

5.

 

Lubricate chassis components.

 

6.

 

Remove and charge battery and store in a cool dry spot. 
Recharge every 30 days.

 

7.

 

Store machine in a clean dry spot.

 

 

REMOVAL FROM STORAGE 

 

1.

 

Change oil.

 

 

2.

 

Fill fuel tank with fuel.

 

 

3.

 

Check spark plug.

 

 

4.

 

Check drive belts.

 

 

5.

 

Check drive chain. 

 

6.

 

Lubricate drive chain. 

 

7.

 

Lubricate pivot points. 

 

8.

 

Grease front axle spindles. 

 

9.

 

Check tyre pressure. 

 

10.

 

Check safety interlock. 

 

11.

 

Check cutting blades.

 

 

11 

Summary of Contents for Rancher 1766

Page 1: ...serious injury Be sure that you read and fully understand the contents of this Owner s Manual Should any point me unclear contact Rover Scott Bonnar Limited in your state or an authorized Rover Scott...

Page 2: ...in confined space where exhaust fumes carbon monoxide can collect Mow only in good daylight Start the engine carefully with feet well away from the blades When starting do not wrap the started rope ar...

Page 3: ...TURES Traction drive blade drive and seat safety interlock Full foot rest Enclosed engine and muffler Low centre of gravity stable wide track Enclosed drives Parking brake Convenient easy to operate c...

Page 4: ...y an A Section V Belt Clutch from engine to trans axle input shaft Total Drive Reduction Speed1 Speed 2 Speed 3 104 1 66 6 1 44 5 1 Speed 4 Speed5 Reverse 34 8 1 29 5 1 88 8 Ground Speed At 3600 RPM S...

Page 5: ...retaining bolts spacers and washers through the U support bracket 4 in the correct order see illustration 5 7 Fit the drive belt 0 to the engine pulley 7 8 Attach the tension springs to the cutter hea...

Page 6: ...forward pivot bracket See fig 3 3 Insert the short end of the pivot rod fully into the rearward pivot bracket 4 Release the spring It should spring down onto the top of the cutter head and be tensioni...

Page 7: ...TING THE SEAT Tip the seat forward loosen the seat securing screws Relocate the seat for operator comfort Tighten the seat securing screws and lower the seat Fig 5 CONTROLS Fig 6 1 Throttle control Mo...

Page 8: ...he engine CAUTION To avoid loss of control always come to a complete stop before selecting speeds and slow down when turning REMEMBER Always look behind the machine before reversing Do not refuel when...

Page 9: ...using 6 Reassemble air cleaner Note Nuts holding air cleaner cartridge must be installed with fiber washers down on cartridge plate to prevent dirt from entering carburetor Tighten nuts by hand Over...

Page 10: ...arm up Approx two minutes Cutter drive must be disengaged Speed selector must be in neutral position air cleaner must be fitted and secured and fuel tank must be half full 4 With the engine running at...

Page 11: ...un it off of front pulley 2 Remove tension springs A loop has been provided on the spring to assist in this operation See Fig 12 3 Disconnect cutter deck push rods and blade brake rod 4 Undo and remov...

Page 12: ...er and end of slot Fig 18 Note After adjusting cutter drive check blade brake adjustment CUTTER HEAD BRAKE Should regularly be checked for operation PAD REPLACEMENT 1 Remove R clip and push rod pin Se...

Page 13: ...ould not be tampered with It gives the Rancher the following characteristics The engine will not start unless the speed selector is in the neutral position the cutter drive is disengaged and the clutc...

Page 14: ...NOTES 12...

Page 15: ...SAFETY AND INSTRUCTION DECALS The following safety and instruction decals are mounted on the RANCHER Front Engine Rider Replace any that become damaged or illegible...

Page 16: ...CIRCUIT DIAGRAMS 14...

Page 17: ...ll drive belt 3 Have machine serviced by an Authorized Service Dealer Engine does not start hard to start loses power or fails to keep running 1 Fuel tank is empty 2 Speed selector 3 Cutter drive is e...

Page 18: ......

Page 19: ...ng Clip Nylon Bush Pivot Bush Blade Clutch Lever Assy L H Rear Mount assy Rear Support Transaxle Cutter head Lifting Rod Swivel Block Blade Clutch Rod Pin Push Rod Assy Circlip Pivot Shaft Assy C Head...

Page 20: ...18...

Page 21: ...ck Spring Transaxle Jockey Arm Clutch Rod Spring Pin Key Engine Pulley Engine Pulley Belt Keeper Assy 30 Deck Belt Keeper Assy 38 Deck Washer Engine Pulley Spring Brake Rod Woodruff Key Circlip Washer...

Page 22: ...20...

Page 23: ...yshaft Assy Steering Layshaft Spacer Tie Rod End Primary Tie Rod Ratchet Plate Self Lube Bush Grease Nipple Pin Swivel Block Steering Block Assy Front Beam Assy R H Stub Axle Assy Woodruff Key L H Stu...

Page 24: ...22...

Page 25: ...Trim Strip Dash panel Headlight Assembly Bonnet Strap Nylon Bush Firewall Assembly Clamp Rod Tube Front Bumper Plug Front Bumper Bar Assembly Nose Piece Decal Bonnet Label L H Bonnet Label R H Wing nu...

Page 26: ...24...

Page 27: ...n Damper Seat Lid Rear Cowl Assembly Rubber Footrest Footrest Seat Switch Button Bolt Special Seat Switch Base Plate Safety Switch Shim Setscrew 5 16 x UNC Hex Nut 3 8 UNC Pressed Nyloc Nut 3 8 UNC Sp...

Page 28: ...26...

Page 29: ...2010 A12011 A03422 A03421 A12019 COMMON HARDWARE ITEM Fuel Tank Fuel Tank Cap Fuel Tank Bracket Fuel Tank Strap Front Fuel Tank Strap Rear Fuel Line ID Hose Clamp Fuel Line Retainer Copper Half Clip x...

Page 30: ...28...

Page 31: ...15 A12251 COMMON HARDWARE ITEM Muffle Mounting Flange Exhaust Pipe Gasket Exhaust Clamp Muffle Mount Plate Muffler Heatshield Assembly 5 16 x 1 UNC Socket Cap Head Screw UNC Hex Nut 5 16 x UNC Hex Set...

Page 32: ...30...

Page 33: ...gle Pulley Idler Pulley Spacer Spindle Duel Pulley Cast Cutter Deck R H Rear Hanger Assy L H Rear Hanger Assy No Step Label Circlip R H Skid Rail Assy Chute Assy Spring U Bolt R H U Bolt Plate Assy L...

Page 34: ...32...

Page 35: ...ng Brake Rod Assy Bearing Cutterhead Spindle Felt Washer Spacer Boss Cutterhead Chute Assembly Spring Cutterhead Chute U Bolt Cutterhead Washer Plate Back Plate Cutterhead Pulley Belt Guides Warning D...

Page 36: ...34...

Page 37: ...A11530 A11531 A11532 A11533 A10235 A11537 COMMON HARDWARE ITEM Key Switch Key Safety Switch Dash Panel Wiring Loom Safety Circuit Amp Meter Light Switch Fuse Solenoid Wiring Loom Main Circuit Battery...

Page 38: ...NOTES 36...

Page 39: ...NOTES 37...

Page 40: ...any conditions or warranty implied by the Trade Practices Act 1974 or any other relevant legislation which implies any condition which can not be excluded Remember PROOF OF PURCHASE IS THE RESPONIBILI...

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