TORQUE REFERENCE #10 -.I /4 20 1/ X X X X X X 55/65 15/30 ENGINE HARDWARE TORQUE J E' - - ASSEMBLY TORQUE NCH POUNDS

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1 _I-.. STANDARD REQUIREMENTS UNLESS LISTED SPECIFICALLY THREAD -32 5/-2 3/8-3/ CHECK THE MOWER BEFORE USE Check all nuts, bolts and fasteners for tightness, especially the blade nut (torque blade nut to ft. lbs.). Disconnect spark plug lead before check. Keep all guards in place at all times. Keep either cover plate or grass catcher chute with bag in place and secure at all times. Check grass or leafbags for wear or deterioration. Replace bag if necessary. HANDLE FUEL PROPERLY Gasoline is extremely flammable and highly explosive under certain conditions. Always stop engine, and do not smoke or allow open flames or spark when mixing fuel or refueling. "D" NUT, Flywheel NUT, Flywheel SCREW, Shroud to armature plate (9) SPARK PLUG SCREW, Flywheel ring TANK TO SHROUD (9) *SCREW, Armature plate to crankcase SCREW, Dust cover BOLT, Shoulder, variable speed lever SCREW, Lamination mounting SCREW, Starter attachment SCREW, Condenser mounting SCREW, Condenser mounting SCREW, Breaker base SCREW, Shut off switch SCREW, Starter pully NUT, Condenser SCREW, Cylinder to crankcase SCREW, Reed plate to carburetor NUT, Reed plate to carburetor SCREW, Reed plate to crankcase SCREW, Filter cup to carburetor SCREW, Throttle shaft disc SCREW, Choke and throttle disc NOZZLE NOZZLE SCREW, Float chamber SCREW, Start cap to base SCREW, Starter to shroud NUT, Starter to shroud SCREW, Connecting rod SCREW, Tank strap TYPE:. NUT, Nylok 2. NUT, Conelok 3. NUT, Standard. SCREW, for nylok nut ENGINE HARDWARE J E' - - 'APPLY 82-NUT &SCREW LOCK ADHESIVE SERVICE BULLETIN S REVISED 983 7/-2( 7/-2( -2 / '-2-2 a-' /- /-28 / #2 72 BRASS #72 BRASS # -.I- PART NUMBER ALL x SCREW, Thread cutting 7. THREAD, Die cast 8. JOINT, Gasketed NCH POUNDS 3/00 3/00 / 50/80 / 2 5 / 2 5 / 2 5 / / / 2 5 / / /8 /9 /3 5/5 /9 5/7 3/5 /9 /9 2/5 / /5 5/

2 ~~~ - CREW, Governor lever CREW, Filter up on C-7 CREW, Air filter C-7 CREW, Filter cup C-72 CREW, Chamber intake SCREW, Scraper bracket NUT, Scraper bracket to 377 shroud C 72 Shut off switch SCREW, Handle bracket SCREW, Handle SCREW, Muffler plate SCREW, Engine mounting TYPE:. NUT, Nylok 2. NUT, Conelok. SCREW, Thread cutting 3. NUT, Standard 7. THREAD, Die cast. SCREW, for nylok nut 8. JOINT, Gasketed SERVICE BULLETIN S REVISED 983

3 , 9" TYPE I INCHPOUNDS SCREW, Handle bracket (Model 5233) SCREW, Handle bracket (Model 523) SCREW, Handle SCREW, Muffler to muffler plate BOLT, Wheel lever (Model 5233) SCREW, Muffler plate to housing SCREW, Crankcase to muffler plate (Model 5233) NUT, Blade BOLT, Shoulder, wheel SCREW, Wing, cover chute (Model 5233) /-28 5/8-8 3/8- / /5 / 58/ /5 5/50 0/20 / 50 2" Deluxe SCREW, Handle bracket SCREW, Handle SCREW, Wing, cover chute opening to housing SCREW, Wing, grass chute to housing (Models 7 and 7WB) SCREW, Wing, grass chute to housing (Models 7 and 7WB) SCREW, Speed nut to housing NUT, Grass chute NUT, Blade BOLT, Shoulder, wheel BOLT, Wheel lever SCREW, Muffler to muffler plate SCREW, Muffler plate to housing SCREW, Crankcase to muffler plate NUT, Mounting bracket screw SCREW, Mounting bracket /-28 5/8-8 3/8- /-28 /-28 / / / /0 /0 /0 5/ 5/50 0/20 /5 58/ 50 TYPE:. NUT, Nylok 2. NUT, Conelok 3. NUT, Standard. SCREW, for nylok nut. SCREW, Thread cutting 7. THREAD, Die cast 8. JOINT, Gasketed SELF-PROPELLED (GEAR DRIVE) PART NO. SCREW, Transmission to housing bracket Aluminum to bearing ass'y. 832 SCREW, Transmission to housing plastic bottom gear cover \ -2...SERVICE BULLETIN S REVISED 983

4 Commercial TYPE INCHPOUNDS INCHPOUNDS SCREW, Handle bracket SCREW, Handle SCREW, Muffler to muffler plate BOLT, Wheel lever SCREW, Muffler plate to housing SCREW, Crankcase to muffler plate SCREW, Fuel tank bracket to housing SCREW, Fuel tank strap BOLT, Shoulder, wheel SCREW, Wing, cover chute SCREW, Housing NUT, Blade NUT, Name plate, thread cutting ,8 / / /8-8 / / 58/ /5 /9 0/20 / /0 5/ SAFETY WARNING SAFETY WARNING when replacement parts are required, use Apply OMC No ULTRA-LOC to all genuine OMC parts or parts with equiva- fasteners within the cutting chamber and lent characteristics including type, MUST be tightened to specified torque to strength, and material. Failure to do so avoidcomingloose, thus becoming a thrown may result in product malfunction and object if hit by the blade. possible injury to the operator and/or passengers. SERVICE BULLETIN S...- REVISED 983

5 I MODEL 923 HARDWARE NUT, Handle bolt NUT, Bracket to handle pivot clamp screw NUT, Bracket to tongue screw NUT, Pin weld head pivot NUT, Foot pedal screw NUT, Mower mounting plate screw NUT, Eye bolt NUT, Wheel, bolt, right NUT, Wheel, left SCREW, Guard to housing NUT, Brace bar screw NUT, Shroud to draw bar brace screw SCREW, Cap disc NUT, Shroud frame to transmission plate screw NUT, Seat support to shroud frame screw SCREW, Oil filler bracket NUT, Seat to cover bolt SCREW, Shroud to cover NUT, Arm, clutch to brace, clutch arm screw NUT, Clutch arm to engine mounting plate screw NUT, Clutch adjusting screw SCREW, Engine mounting plate to armature plate SCREW, Bearing engine mounting to engine mounting plate NUT, Bell crank bolt NUT, Engine mounting screw NUT, Muffler clamp to cylinder screw SCREW, Muffler clamp to cylinder NUT, Muffler clamp screw NUT, Muffler cover to muffler screw SCREW, Roller SCREW, Set drive shaft SCREW, Pinion gear pin SCREW, Transmission plug SCREW, Plug, oil drain SCREW, Axle collar SCREW, Differential lockplate TYPE:. NUT, Nylok 2. NUT, Conelok 3. NUT, Standard. SCREW, for nylok nut TYPE , ,8,7,8 5,7 5, ,7 597, /-28 /-28 5/5-8 /-28 3/8-5/-2 9/-8 3/8-2 # /2-3 /-28 3/8- # /8-27 N.P.T.F 5/-2 5/-2 2/90 50/550 2/2 /50 0/350 0/20 5/ 80/0 /50 /50. SCREW, Thread cutting 7. THREAD, Die cast 8. JOINT, Gasketed SERVICE BULLETIN S REVISED 983

6 HARDWARE MODEL 923 (Continued) TYPE INCH NUT, Draw bar screw POUNDS MODEL Automower NUT, Handle screw SCREW, Handle bracket NUT, Handle bar screw SCREW, Set, roller driveshaft SCREW, Wing, grass chute shaft to housing SCREW, Wing, grass chute to housing SCREW, Speed nut to housing SCREW, Wing, cover, chute opening to housing SCREW, Grass chute BOLT, Wheel lever BOLT, Shoulder wheel NUT, Blade SCREW, Sub base mounting SCREW, Crankcase to sub base NUT, Muffler to muffler plate SCREW, Muffler plate to housing BOLT, Shoulder SCREW, Driveshaft bracket / /8-2 3/8-5/8-8 /-28 /-28 / / /0 /0 /0 / 0/20 5/50 TYPE:. NUT, Nylok 2. NUT, Conelok 3. NUT, Standard. SCREW, for nylok nut. SCREW, Thread cutting 7. THREAD, Die cast 8. JOINT, Gasketed SERVICE BULLETIN S..-27 REVISED 983

7 STANDARD REQUIREMENTS UNLESS LISTED SPECIFICALLY THREAD / / / CHECK THE MOWER BEFORE USE Check all nuts, bolts and fasteners for tightness, especially the blade nut (torque blade but to 50 ft.lbs.). Disconnect spark plug lead before check to prevent accidental restarting of mower. Keep all guards in place at all times. Keep either cover plate or grass catcher chute with bag in place and secure at all times. Check grass or leaf bags for wear or deterioration. Replace bag if necessary. HANDLE FUEL PROPERLY Gasoline is extremely flammable and highly explosive under certain conditions. Always stop engine, and do not smoke or allow open flames or spark when mixing fuel or refueling. SERIES F ECLUDING 983 & LATER BBC MODELS ASEMBLY INCH MA. Nut Flywheel Seat Float Valve **Screw Reed to Crankcase Cover Screw Ignition Bracket to Cyliner Screw Crankcase tu Cyliner Screw Shroud Base to Cyliner Assembly *Nut Blade Screw Set Starter to Crankcase Cover Bolt Wheel Nut Shoulder Bolt Wheel Bracket Screw Connecting Rod Cap *Screw Muffler Plate to Housing Screw Axle Cover Mounting Screw Flywheel Screen *Screw Handle Bracket to Housing **Screw Ignition Pack (C.D.) to Bracket Spark Plug Screw Cylinder to Muffler Plate Screw Roller Guard Mounting Screw Plate and Chute Mounting *Nut Muffler Plate to Housing Screw Float Bowl to Carburetor Body Screw Baffle to Shroud Base Screw Engine Shroud to Base Screw Gearbox to Crankcase Cover *Screw Crankcase Support and Muffler Cover to Muffler Plate Screw Carburetor to Crankcase Screw Switch Box to Shroud Bolt Shoulder Lockout Lever to Crankcase Bolt & Nut Height to Housing Adjustment Screw Transmission to Housing Aluminum Screw Transmission to Housing (Plastic Cover) *Screw Muffler to Muffler Plate *Nozzle Carburetor **Screw Alternator to Bracket SAFETY WARNING When replacement parts are required, use genuine OMC parts or parts with equivalent characteristics including type, strength, and material. Failure to do so may result in product malfunction and possible injury to the operator and/or passengers I SAFETY WARNING Apply OMC No ULTRA-LOC to all fasteners within the cutting chamber and MUST be tightened to specified torque to avoid: coming loose. thus becoming a thrown object if hit by the blade. *Apply OMC Part #38857 ULTRA-LOC (Loctite #27) **Apply 3888 Screw-Loc SERVICE BULLETIN S REVISED 983

8 SAFETY WARNING STANDARD REQUIREMENTS UNLESS LISTED SPECIFICALLY THREAD /-2 3/8-3/ CHECK THE MOWER BEFORE USE Check all nuts, bolts and fasteners for tightness, especially the blade nut (torque blade nut to 50 ft. lbs.). Disconnect spark plug lead before check to prevent accidental restarting of mower. Keep all guards in place at all times. Keep either cover plate or grass catcher chute with bag in place and secure at all times. Check grass or leaf bags for wear or deterioration. Replace bag if necessary. HANDLE FUEL PROPERLY Gasoline is extremely flammable and highly explosive under certain conditions. Always stop engine, and do not smoke or allow open flames or spark when mixing fuel or refueling. SERIES F COMPLIANT MOWERS (BBC) ASEMBLY INCH-j MA. BLY POUNDS MIN. Nut Flywheel Zinc Seat Float Valve **Screw Reed to Crankcase Cover Screw Ignition Bracket to Cyliner Screw Crankcase to Cyliner Screw Shroud Base to Cyliner Assembly *Bolt Blade (2) *Screw Clutch Brake Retaining *Nozzle Carburetor Screw Spring Box Mounting Bolt Shoulder Brake Cable Clevis Screw Set Starter to Crankcase Cover Bolt Wheel Nut Shoulder Bolt Wheel Bracket Screw Connecting Rod Cap *Screw Muffier Plate to Housing Screw Axle Cover Mounting Screw Flywheel Screen *Screw Handle Bracket to Housing **Screw Ignition Pack (C.D.) to Bracket Spark Plug Screw Cylinder to Muffler Plate Screw Roller Guard Mounting Screw Plate and Chute Mounting *Nut Muffler Plate to Housing Screw Float Bowl to Carburetor Body Screw Baffle to Shroud Base Screw Engine Shroud to Base Screw Gearbox to Crankcase Cover Screw Crankcase Support and Muffler Cover to Muffler Plate Screw Carburetor to Crankcase Screw Switch Box to Shroud Bolt Shoulder Lockout Lever to Crankcase Bolt & Nut Height to Housing Adjustment *Screw Transmission to Housing Aluminum *Screw Transmission to Housing (Plastic Cover) **Screw Alternator to Bracket SAFETY WARNING When replacement parts are required, use genuine OMC parts or parts with equivalent characteristics including type, strength, and material. Failure to do so may result in product malfunction and possible injury to the operator and/or passengers. SAFETY WARNING Apply OMC No ULTRA-LOC to all fasteners within the cutting chamber and MUST be tightened to specified torque to avoid coming loose, thus becoming a thrown object if hit by the blade. *Apply OMC Part ULTRA-LOC (Loctite #27). **Apply 3888 Screw-Loc. SERVICE BULLETIN S..-29 REVISED 983