Simplicity 1693426 755E manual

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OPERA T OR’S MANUAL Intermediate Snowthrower Models 555 Models Mfg. No. Description 1693161 555M, 5HP Snowthrower, Manual Start 1693163 555M, 5HP Snowthrower, Manual Start (Export) 1693425 555M, 5HP Snowthrower, Manual Start 755 Models Mfg. No. Description 1693162 755E, 7HP Snowthrower, Electric Start 1693164 755M, 7HP Snowthrower, Manual Start ([...]

MANUFACTURING, INC. 500 N Spring Street / PO Box 997 Port Washington, WI 53074-0997 www.simplicitymfg.com © Copyright 1998, Simplicity Manufacturing, Inc. All Rights Reserved. Printed in USA.[...]

ENGINE REFERENCE DATA 1 T able Of Contents SAFETY RULES General ...................................................................2 Preparation .............................................................2 Operation ................................................................3 Maintenance & Storage ........................................[...]

W ARNING This unit is a “two-stage” snowthrower. The first stage is the auger, which feeds the snow back into the impeller housing. The second stage is the impeller, which throws the snow out the dis- charge chute. If bodily contact is made with the auger or impeller when they are rotating, severe personal injury will occur. To avoid injury, ke[...]

3 Safety Rules OPERA TION • Keep hands and feet away from rotating parts. Keep clear of discharge opening at all times. • Always clear snow up and down the face of slopes, never across the face. Use extreme caution when changing direction on slopes. Do not attempt to clear slopes over 17.7% (10 o ) . • Use extreme caution when operating on or[...]

4 SAFETY DECALS Safety warning decals are placed at strategic locations on the snowthrower as a constant reminder to the opera- tor of the most important safety precautions. All warning, caution and instructional messages on your snowthrow- er should be carefully read and obeyed. If any of these decals are lost or damaged, replace them at once. The[...]

5 ENGINE CONTROLS SNOWTHROWER CONTROLS Figure 1. Snowthrower Controls Figure 2. Engine Controls A Electric Start Button (Optional) Activates electric starter B Fuel Valve Turns fuel supply on or off. C Starter Handle Used to start engine D Primer Button Primes carburetor for faster cold starting. E Throttle Lever Controls engine speed F Engine Key [...]

6 ST ARTING CONTROLS Electric Start Units Only A. Electric Start Button - The Electric Start Button (A, Figure 3) activates an electric starter mounted to the engine, eliminating the need to pull the starter handle. The Electric Start Button operates on 120 Volts AC, which is provided by connection to the extension cord provided with units equipped[...]

GROUND SPEED CONTROLS A. Speed Selector - This lever (A, Figures 4 & 5) is used to set the ground speed of the snowthrower. The snowthrower has five forward speeds, 1–5, and two reverse speeds, 1–2. No neutral position or gate is required, since the traction drive design automati- cally provides "neutral" (no forward or reverse mo[...]

8 GENERAL OPERA TION CHECKS BEFORE EACH ST ART -UP 1. Make sure all safety guards are in place and all nuts, bolts and clips are secure. 2. Check the engine oil level. See your engine Owner’s Manual for procedure and specifications. 3. Check to make sure spark plug wire is attached and spark plug is tightened securely. If necessary, torque spark [...]

9 Operation ST ARTING THE ENGINE 1. Turn the fuel valve (B, Figure 6) to the ON position. 2. Insert the Engine Key (F, Figure 6) into the Engine Key slot and push fully in to the RUN position. 3. Move the Throttle Lever (E, Figure 6) fully up to the FAST position. 4. Turn the Choke Knob (G, Figure 6) fully clockwise if engine is cold. (Do not choke[...]

ENGINE SPEED For overall best performance, run the snowthrower at full engine operating speed. Use the engine Throttle Lever (See Figure 8) to set the engine speed. Slide the Throttle Lever UP to increase engine speed, and DOWN to reduce speed. GROUND SPEED SELECT OR Use the Speed Selector (A, Figure 7) to control the drive speed of the snowthrower[...]

11 Operation FREE-WHEELING AND TRACTION DRIVE LOCK For easy turning when pushing the snowthrower, you can disengage the traction drive at one or both wheels by using the Traction Lock Pins (See Figures 11 & 12.) 1. Turn the unit off, remove the Engine Key, and discon- nect the spark plug wire. 2. To DISENGAGE the traction drive lock, insert the[...]

12 Regular Maintenance NORMAL CARE Check auger gear case lubrication.* Lubricate snowthrower . Check tire pressure. Change engine oil.** ✛ Clean or replace spark plug. ✛ Check drive linkage/belt tension Page 12 Page 13 Page 22 - - Page 16-19 25 Hours 10 Hours Monthly 50 Hours ✛ Y early 4-6 Hours Simplicity Winter Weight Worm Gear Oil 10W Oil [...]

13 Regular Maintenance There are two grease fittings on the auger shaft (Figure 15). Wipe the fittings clean and apply grease, using a grease gun. Also apply grease on other points indicated. Apply medium weight (10W) oil to points shown(See Figures 14 - 16). Generally, all moving metal parts should be oiled where contact is made with other parts. [...]

Service W ARNING Before performing any adjustment or service to snowthrower, stop the engine and wait for moving parts to stop. Remove the key. To prevent accidental starting, disconnect the spark plug wire and fasten away from the plug. 14 PROBLEM POSSIBLE CAUSE REMEDY Engine fails to start. 1. Key is OFF. 2. Failure to Prime cold Engine 3. Fuel v[...]

15 Service PROBLEM POSSIBLE CAUSE REMEDY Auger rotates, but snow is not thrown far enough 1. Chute deflector too low. 2. Engine speed too slow. 3. Ground speed too fast. 4. Snowthrower discharge chute clogged. 5. Auger belt loose or worn. 1. Adjust deflector as necessary. 2. Set speed to full throttle. 3. Use slower Speed Selector setting. 4. STOP [...]

16 SPEED SELECTOR PIVOT ADJUST- MENT The Speed Selector is factory set for optimal perfor- mance at each forward and reverse speed setting. However, if speed position 1 is too slow, the speed can be increased by changing the pivot position one turn. Do not turn pivot more than one turn - increasing forward speed using this method reduces reverse sp[...]

17 Service Figure 19. 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 (Figu[...]

18 Service DRIVE BEL T ADJUSTMENT (Continued) If the auger drive slips (auger slows or doesn't rotate nor- mally while blowing snow), or stays engaged when the control is disengaged — and the auger clutch rod has been properly adjusted — the auger drive belt may be out of adjustment. Checking Auger Belt & Belt Guide Adjustments 1. Inse[...]

19 Service DRIVE BEL T ADJUSTMENT (Continued) Adjusting Auger Belt Guide 1. With the Auger Control still fully depressed, adjust the Auger Belt Guide so that there is a 1/64” gap (1/32” Maximum) between the end of the guide and the belt (Figure 22c), making certain the guide is NOT putting pressure on the belt. 2. Making certain the Auger Belt [...]

20 Service DRIVE BEL T REPLACEMENT (Cont.) Auger Drive Belt Replacement 1. Remove gas from fuel tank and run engine until it stops running from lack of fuel. 2. Disconnect spark plug wire and fasten it away from the spark plug. 3. Remove belt cover (See Figure 21 on page 18). 4. Loosen auger belt guide and slide belt off engine pul- ley and away fr[...]

21 Figure 27. Auger Bearings AUGER SHAFT BEARING REPLACEMENT If auger shaft bearings need replacement, proceed as follows: 1. Pry off the E-ring (Figure 27). 2. Remove the washers, then pull the bearing out of the housing and off the shaft. 3. Apply a coating of grease to inside diameter of bear- ings. 4. Install new bearing by aligning bearing fla[...]

22 Service DISCHARGE CHUTE WORM ASSEMBL Y ADJUSTMENT If the Discharge Chute becomes difficult to rotate or begins to operate erratically, the Worm Assembly may require adjustment: 1. Loosen the adjustment screw under the Worm Assembly mounting area (Figure 28). 2. Slide the Worm Assembly in or out to provide smooth engagement between the worm wire [...]

23 ENGINE Make ................................................................Tecumseh Cylinders ........................................................................1 Cycles .............................................................................4 Crankshaft .......................................................Horizontal 5 HP (555M) - M[...]

24 COMMON REPLACEMENT P ARTS Listed below are part numbers for the more common replacement parts. Use only genuine Simplicity replace- ment parts to assure optimum performance and safety. Simplicity Gas Stabilizer - 8 oz. Bottle ........................................................1685748 - Case of 12 Bottles (8 oz. ea.) ........................[...]