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TROUBLE SHOOTING 

 

PROBLEM 

POSSIBLE CAUSES 

CORRECTIVE ACTION 

Engine loses power. 

1.

 

Oil level in crank case is low. 

2.

 

Cooling fins and air passages under 
engine blower housing are blocked. 

3.

 

Engine load is excessive. 

4.

 

Air cleaner is dirty. 

5.

 

Dirt or water is in fuel. 

 
6.

 

Carburettor is adjusted incorrectly. 

7.

 

Spark plug is pitted, fouled or defective 
in some other way. 

1.

 

Add oil to crankcase. 

2.

 

Remove obstruction from passage. 

 
3.

 

Select a lower speed to reduce load. 

4.

 

Clean air cleaner element. 

5.

 

Have machine serviced by an Authorized 
Service Dealer. 

6.

 

Adjust the carburettor. 

7.

 

Install new correctly gapped spark plug. 

Engine over heats. 

1.

 

Cooling fins and air passages under 
engine blower housing are blocked. 

2.

 

Carburettor is adjusted incorrectly. 

3.

 

Oil level in crank case is low. 

4.

 

Engine load is excessive. 

1.

 

Remove obstruction from cooling fins and air 
passage. 

2.

 

Adjust the carburettor. 

3.

 

Add oil to crankcase. 

4.

 

Select a lower speed to reduce load. 

Mower vibrates abnormally. 

1.

 

Engine mounting bolts are loose. 

2.

 

Loose cutter pulley, idler pulley or drive 
pulley. 

3.

 

Cutter assembly is unbalanced. 

4.

 

Cutter assembly is loose. 

1.

 

Tighten mount bolts. 

2.

 

Tighten the appropriate pulley. 

 
3.

 

Replace broken blades in set. 

4.

 

Tighten securing nut. 

Cutter does not rotate. 

1.

 

Cutter belt is worn, loose or broken. 

2.

 

Cutter drive belt is off pulley. 

1.

 

Install new cutter drive belt. 

2.

 

Install cutter drive belt. 

Mower does not drive. 

1.

 

Drive belt is worn, loose or broken. 

2.

 

Drive belt is off pulley. 

3.

 

Unable to select speed on transaxle. 

1.

 

Install new drive belt. 

2.

 

Install 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 engaged. 

4.

 

Spark plug is loose. 

5.

 

Spark plug lead is loose or disconnected 
from spark plug. 

6.

 

Spark plug gap is incorrect. 

7.

 

Spark plug is pitted fouled or defective 
in some other way. 

8.

 

Wrong spark plug is used. 

9.

 

Electrical connections are loose. 

 
10.

 

Carburettor is adjusted incorrectly. 

11.

 

Air cleaner is dirty. 

12.

 

Vent hole in fuel tank is plugged. 

13.

 

Dirt or water in furl system. 

14.

 

Dead battery. 

15.

 

Defective points, condenser, ignition 
coil, or ignition switch. 

16.

 

Module or switch is defective. 

1.

 

Fill fuel tank with petrol. 

2.

 

Select neutral. 

3.

 

Disengage cutter drive. 

4.

 

Tighten spark plug. 

5.

 

Install spark plug lead on spark plug. 

 
6.

 

Set gap between electrodes at 0.8mm 

7.

 

Install new correctly gapped spark plug. 

 
8.

 

Install correct spark plug. 

9.

 

Check electrical system to ensure good 
contact. 

10.

 

Adjust the carburettor. 

11.

 

Clean the air cleaner element. 

12.

 

Inspect and open vent. 

 
 
13.

 

Have machine serviced by an Authorized 
Service Dealer. 

Engine does not idle or idles 
poorly. 

1.

 

Air cleaner is dirty. 

2.

 

Oil level in crank case is low. 

3.

 

Cooling fins and air passages under 
engine blower housing are plugged. 

4.

 

Idle speed is too low or high speed 
mixture is incorrect. 

5.

 

Dirt or water in fuel system. 

 
6.

 

Vent hole in fuel tank is plugged. 

7.

 

Spark plug is pitted fouled or defective 
in some other way. 

1.

 

Clean air cleaner element. 

2.

 

Add oil to crankcase. 

3.

 

Remove obstruction from cooling fins and air 
passages. 

4.

 

Adjust the carburettor. 

 
5.

 

Have machine serviced by an Authorized 
Service Dealer. 

6.

 

Clean fuel tank vent. 

7.

 

Install new correctly gapped spark plug. 

 
 
 

15 

}

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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