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SPECIFICATIONS 

ROVER RANCHER 

Machine Model No. 
 
Engine Model No. 
Single Cylinder 
4 Stroke 
Fuel Capacity 
Oil Capacity 
Lubrication 
Spark plug type 
Spark Plug Gap 
Ignition Type 
Engine Oil 
 

1766 

 

280702 

Briggs & Stratton 

12 HP. 465cc 

4.0 Litres 

1.42 Litres 

Gear Impellor 

Champion CJ8 

0.7 to 0.8 

Magnetron 

10w-30 or SAE 30 

To emphasize special information the words 

WARNING 

and 

CAUTION

 are used. 

 

WARNING:

 The safety of the user and others 

involved. 
Personal injury may result should this information 
be disregarded. 
 
 

CAUTION:

 Follow these instructions carefully to 

avoid mower damage and loss of warranty. 

TRANSMISSION

 

CONTROLS 

Fully enclosed and permanently lubricated 
transaxle. Diff and gearbox combined featuring an 
inline selector pattern with 5 Forward speeds, 
Neutral and Reverse. 

 

Reduction are – 

Speed1 
Speed 2 
Speed 3 

46.8:1 
30.1:1 
20.1:1 

Speed 4 
Speed5 
Reverse 

15.7:1 
13.3:1 
40.1:1 

 

 

Throttle control with Fast, Slow and Choke 
positions; 

 

 

Key switch with Off, On and Start positions; 

 

 

Light switch Off/On; 

 

 

Amp Meter. 

Primary traction drive is by 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 

Speed1 

Speed 2 
Speed 3 

2.5 km/hr 
3.9 km/hr 
5.8 km/hr 

Speed 4 
Speed5 
Reverse 

7.5 km/hr 
8.8 km/hr 
2.9 km/hr 

Note: Speeds must only be selected when 
machine is stationary. 
 
CUTTING HEAD 

Model 178:  

Full floating die cast aluminum 
housing with right side discharge. 
Width of cut 965mm (38”) 

Model 170: 

Full floating pressed steel housing 
with right side discharge. Width of 
cut 760mm (30”). 

Tyres 

Front Tyres – 

13 x5.00 

 
Tube 
Pressure 140 KPA maximum 

Rear Tyres – 

Tubeless 
Pressure 70 KPA maximum 

STEERING WHEEL 

325mm Dia. Steering Wheel. 1-1/4 turns lock to lock. 
 

CLUTCH BRAKE / PEDAL 

Foot operated pedal. Right side of machine. 
 

PARK BRAKE KNOB: 

Hand operated catch. Right hand side. Used in 
conjunction with clutch/brake pedal. 
 

SPEED SELECTOR: 

Lever left hand side. 5 Forward speeds, Neutral and 
reverse. 
 

CUTTING HEIGHT: 

Lever right hand side. 8 heights of cut positions from 
15mm to 65mm. 
 

Cutter drive: 

Lever in rear cowl. 
 

GENERAL: 

Wheel Base, 111cm 
Track 63cm R: 71cm F. 
Turning Circle 4.0m 
Turning Radius 85.0cm 

Length 
Width 
Height 
Weight 

156cm 
83cm 
95cm 
180kg 

 

 

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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