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24

Adjustments

Figure 22.  Auger Drive Clutch Rod Adjustment

Auger Drive
Clutch Rod

Auger Drive
Clutch Rod Spring

Adjustment
Hex Nuts

AUGER DRIVE CLUTCH ROD
ADJUSTMENT

The auger drive clutch rod should be adjusted so that
there is no slack in the rod when moved slightly from
side to side. To adjust tension on the rod:

1. Loosen adjustment hex nuts (Figure 22).

2. Tighten top hex nut while holding rod. Tighten just

until slack in rod is removed. Be careful not to move
idler rod lever when adjusting clutch rod tension.

3. Tighten lower hex nut securely.

4. Start unit and check auger. Auger must not be

engaged unless Auger Control is depressed. 

5. With engine running, fully depress Auger Control, the

auger should engage and run normally.

6. Release Auger Control. Auger must stop within 5

seconds. 

7. If auger does not operate properly, stop engine and

recheck clutch rod adjustments.

8. If clutch rod is properly adjusted, auger drive belt ten-

sion may require adjustment. See "Adjusting Auger
Drive Belt" on next page. 

Figure 23.  Drive Belt Paths

DRIVE BELT ADJUSTMENT 

The snowthrower is equipped with two drive belts locat-
ed just in front of the engine under the belt cover. Figure
23 shows both belts and idler pulleys. The belt nearest
the engine is the unit traction drive (wheels) belt. The
belt farthest from the engine is the auger/ impeller drive
belt.

The traction drive belt has constant tension provided by
a spring-loaded idler pulley arm, and is non-adjustable.
This belt rotates whenever the engine is running, and
provides power to the traction drive disc, which also
rotates constantly while the engine is running.

The auger drive belt tension may be adjusted by moving
the auger drive idler pulley. See "Adjusting Auger Drive
Belt’ on next page.

Idler Rod

Right Handle

Engine Pulley

Idler Pulley

Auger Pulley

Engine Pulley

Idler Pulley

Traction
Drive Pulley

FRONT
(Auger)

DRIVE
BELT

AUGER

BELT

WARNING

Do not over-tighten, as this may lift the idler rod
lever and cause auger drive to be engaged
without depressing the Auger Control.

Summary of Contents for 1694433

Page 1: ...e immediately after the front cover The part number for this manual typically a 172_____ number is located on the front cover This file may contain several manual which differ only by their covers See...

Page 2: ...THIS PAGE INTENTIONALLY BLANK FOR PLACEMENT ONLY DO NOT PRINT...

Page 3: ...Snowthrower Manual Start Export 755 Models Mfg No Description 1693982 755M 7HP OHV Snowthrower Manual Start Export 1693983 755E 7HP OHV Snowthrower Electric Start 860 Models Mfg No Description 169443...

Page 4: ...MANUFACTURING INC 500 N Spring Street PO Box 997 Port Washington WI 53074 0997 www simplicitymfg com Copyright 2003 Simplicity Manufacturing Inc All Rights Reserved Printed in USA...

Page 5: ...g Adjustment Service Troubleshooting 20 Speed Selector Pivot Adjustment 22 Traction Drive Clutch Rod Adjustment 22 Discharge Chute Worm Assy Adj 23 Discharge Chute Control Rod Gear Adj 23 Auger Drive...

Page 6: ...the slope Keep all movement on the slopes slow and gradual Do not make sudden changes in speed or direction Always keep unit in gear especially when traveling downhill Do Not Do not start or stop on a...

Page 7: ...dis penser nozzle Keep nozzle in contact with the rim of the fuel tank or container opening at all times until fueling is com plete Do not use a nozzle lock open device If fuel is spilled on clothing...

Page 8: ...ave the operating position before unclogging the collector impeller housing or discharge guide and when making any repairs adjustments or inspec tions 6 When cleaning repairing or inspecting make cert...

Page 9: ...umber Dealer Name Date Purchased Engine Make Engine Type Spec Engine Model Engine Code Serial Number Mower Deck MFG Number Mower Deck SERIAL Number Mfg No 169XXXX Serial No XXXXX kW XXX Engine RPM XXX...

Page 10: ...ructions it contains will provide you with the necessary basic knowl edge to operate this equipment safely and effectively we have placed several safety labels on the unit to remind you of this import...

Page 11: ...lt technical litera ture before performing repairs or maintenance Warning Dismemberment This machine can amputate limbs Keep bystanders and children away when engine is running Danger Dismemberment Th...

Page 12: ...8 Features Controls Operation TECUMSEH L HEAD MODELS TECUMSEH OHV MODELS ALL MODELS BRIGGS STRATTON MODELS 1 2...

Page 13: ...leases the Free Hand auger control lock and stops the drive wheels Auger Control Engages the auger impeller when depressed Releasing the control stops the auger impeller Chute Direction Control Rotate...

Page 14: ...l to help start a cold engine Normally pressing the primer button twice will pro vide enough fuel to start a cold engine E Throttle Lever The throttle lever E controls the engine speed For best overal...

Page 15: ...lever C Figures 4 5 engages the auger drive when the lever is depressed and disengages the auger drive when the lever is released unless Traction Free Hand control is also depressed see above DEFLECTO...

Page 16: ...l forward and reverse speed positions contact your local authorized dealer for assistance WARNING For your safety operation on slopes should be in an up and down direction only If it becomes necessary...

Page 17: ...ly while keeping a firm grip on the Starter Handle 7 As the engine starts and begins to operate evenly open the Choke G slowly and set the Throttle Lever to SLOW If the engine falters turn the Choke K...

Page 18: ...t may be necessary to adjust the tension on the traction drive rod See Traction Drive Clutch Rod Adjustment in the Service Section for the adjustment procedure GROUND SPEED SELECTOR Use the Speed Sele...

Page 19: ...lt the scraper bar should scrape the surface On surfaces such as gravel the scraper bar should be high enough so that it will not pick up gravel or debris The height of the scraper bar is controlled b...

Page 20: ...unit cools After each period of use follow these steps to prevent freeze up caused by ice formation in and around the engine controls and external parts 1 Before shutting off the engine pull the star...

Page 21: ...for best per formance Be sure to keep caps on valves to prevent entry of debris into the valve stem when tires are filled Figure 13 Checking Tire Pressure SCHEDULE Check auger gear case lubrication Lu...

Page 22: ...controls do not function properly lubricate them If lubrication does not rectify the problem see your dealer Under no circumstances should the unit be used if the controls are not functioning properly...

Page 23: ...ased if it is removed put in a cool dry place and fully charged about once a month If battery is left in disconnect the negative cable 10 Drain fuel system completely or add a gasoline stabilizer to t...

Page 24: ...er for adjustments 3 Clean and gap or replace Auger does not rotate 1 Auger Control not engaged 2 Foreign matter blocking auger 3 Auger drive clutch rod slack 4 Auger drive belt slipping 5 Broken belt...

Page 25: ...ve clutch rod bent or too tight 1 Loosen rod to remove slack or replace See adjustment procedure Snowthrower does not drive when drive lever is engaged 1 Traction drive clutch rod loose 2 Drive belt l...

Page 26: ...lding rod Tighten just until slack in rod is removed 3 Tighten lower hex nut securely The unit should able to be pushed forward and back freely Figure 19 Traction Drive Clutch Rod Adjustment Traction...

Page 27: ...ghout entire range of motion 5 Lubricate the Chute Ring and Worm Assembly as needed Figure 20 Discharge Chute Worm Adjustment Figure 21 Chute Direction Gear Adjustments CHUTE DIRECTION CONTROL ROD GEA...

Page 28: ...uger drive belt ten sion may require adjustment See Adjusting Auger Drive Belt on next page Figure 23 Drive Belt Paths DRIVE BELT ADJUSTMENT The snowthrower is equipped with two drive belts locat ed j...

Page 29: ...control and measure the expanded length of the spring The spring should expand 19 64 5 16 If the spring deflection is less than 19 64 5 16 the auger idler pulley must be adjusted Proceed to step 5 5 U...

Page 30: ...r the Traction Drive which transmits engine power to the wheels and a second for the Auger Drive which trans mits engine power to the auger mechanism Each of these drive belts are of special construct...

Page 31: ...install the new belt on the auger drive pulley 10 Position belt stop to provide 1 8 clearance between stop and belt and and tighten securely 11 Replace lower cover 12 Return unit to normal upright op...

Page 32: ...ar pin will lead to damaged equipment Figure 30 Roller Chain Master Link Keeper link Must install towards wheel side with open end trailing Master link Direction of travel ROLLER CHAIN REPLACEMENT NOT...

Page 33: ...305 cc Oil Capacity 28 oz 84 L CHASSIS Wheels Inflation Pressure 20 psi 1 37 bar Spout Rotation 192 Depress Impeller 10 25 4 cm 4 Blade Ribbon Flighted Steel Drive System Friction Disc 5 Forward Spee...

Page 34: ...nt assembly notes and and torque values are also included For applicable manuals currently available for your model contact our Customer Publications Department at 262 284 8519 Have the information li...

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