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I Sears I
OWNER'S
._, MODEL NO.
917.253540
OR
917.253551
MANUAL
8oU6HI ;.,Al
APRIL 197';
Assembly
Maintenance
Operation
Repair Parts
.
42 INCH AND 48 INCH
ROTARY
MOWER
ATTACHMENT
FOR SEARS
GARDEN TRACTORS
Sears, Roebuck and Co., Chicago, Ill. 60684, U .S.A. and Simpsons Sears Limited, Toronto, Canada
another free manual from www.searstractormanuals.com
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CONG RATULATIONS on your purchase of a Sears Rotary Please read and ret ain this manual. The instructions will Mower. It has been designed, engineered and manufactured to enable you to assemble, operate and maintain your mower properly. Always observe the " RU LES FOR SAFE OPERA give you the best possible dependability and performance. Should you experience any problem you cannot easi ly reme· TION". d y, please contact your nearest Sears, Roebuck and Co. or Simpsons Sears Limited Store. T
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RULES FOR SAFE OPERATION LOOK FOR THIS SYMBOL TO POINT OUT IMPORTANT SAFETY PRECAUTIONS. IT MEANS·-ATTENTION! BECOME ALERT! YOUR SAFETY IS INVOLVED. 1. Know the controls and how to stop quickly. READ THE 23. Use care when pulling loads or using heavy equipment. OWNER'S MANUAL. a. Use only approved drawbar hitch points. 2. Do not allow children to operate the vehicle. Do not allow b. limit loads to those you can safely control. adults to operate it without proper instruction. c. Do not tur
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------- - - - To assemble your Mower you will need: a 9/16" Wrench and a Hammer When R.H. (Right Hand) or L.H. (Left Hand) is used, it means from a position behind the steering wheel as if you were seated on the tractor seat and facing forward. ASSEMBLY 1.1nstall Lift Lever using: @0 two Flat Washers, two Lockwashers and two Hex Nuts found in bag of parts. a. Place Lift Lever (Fig. 1) over Lever Quadrant and tilt bottom of Lever outward to align Bolts in Lift Shaft Weldment with hol
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18.SJide Idler Shaft Assembly into Tractor Channel (Fig. 4). 17. 1nstall Spring: OFFSET--~~--- LOOP BE LT GUIDE FIGURE 4 one spring found in bag of parts. Hook Offset Loop of Spring into hole in rear of Front Axle Bracket. Hook other loop of Spring in hole in Idler Shaft Assembly (Fig. 5). 18.Remove the two Retainer Springs and Engine Belt Guard, (Fig. 4 - too inset). 19.Remove Nut, Lockwasher and Belt Guide. Place Belt on Idler Sheaves and on Engine Pulley. NOTE: See Fig. 6 for p
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- ------ ---- BELT ADJUSTMENT 1. Adjust belt by turning Adjusting Pin (Fig. 7) counterclock· wise to tighten; clockwise to loosen. Engage Mower Clutch Control Lever (push forward). Belt is properly adjusted when Belt can be squeezed together with thumb and fore finger (without undue pressure) midway between Engine Pulley and Idler Sheaves. After first 2 hours of mowing, re· check Belt for proper tension (Fig. 9). 2. Belt from center to outside mandrels is spring loaded there· fore no ad
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PRE-USE ADJUSTMENT LEVEL MOWER FROM SIDE .$ F.--- ~-~-=======c=~-===----~-~~-F-R_O_N_T~O~F-1 TO SIDE TRACTOR PLACE THE MOWER CLUTCH CONTROL - - - - - - - -~ ~E~E-L '-- LEVER IN THE "OUT" POSITION, LOCK THE PARKING BRAKE, SHIFT INTO SURFACE NEUTRAL, SHUT-OFF THE ENGINE. FIGURE 10 MAKE ABSOLUTELY SURE THE BLADES AND ALL MOVING PARTS HAVE COM· PLETEL Y STOPPED, REMOVE THE IG· NITION KEY, DISCONNECT THE SPARK PLUG WIRE(S) FROM THE SPARK PLUG(S) AND KEEP WIRE(S) AWAY FROM THE PLUG(S)
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~--------------------- ----- OPERATING -LIFT LEVER PLUNGER INSTRUCTIONS READ T HE " RULES FOR SAFE OPERA TION CAREFULLY BEFORE OPERAT· lNG YOUR MOWER. A THE MAIN DRIVE BELT (ENGINE TO CENTER MAN· DREL) MUST BE PROPERLY ADJUSTED BEFORE OPERA TING. A DRIVE BELT NOT PROPERLY ADJUSTED CAN BE RUINED IN JUST A FEW MINUTES OF OPERATION. REFER TO STEP 1, PAGE 4. THE MOWER MUST BE LEVELED FROM SIDE TO SIDE, AND FROM FRONT TO REAR, BEFORE OPERATING. (REFER TO PAGE 5). THIS IS NECESSARY FOR L
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MAINTENANCE INSTRUCTIONS BLADE CARE For best results mower blades must be kept sharp. The blades can be sharpened with a few strokes of a file or on a grinding wheel. Do not attempt to sharpen while on mower. PLACE THE MOWER CLUTCH CONTROL LEVER IN THE "OUT" POSITION, LOCK BLADE THE PARKING BRAKE, SHIFT INTO NEUTRAL AND SHUT-OFF THE EN· GINE. MAKE ABSOLUTELY SURE THE FIGURE 16 BLADES AND ALL MOVING PARTS HAVE COMPLETELY STOPPED. REMOVE THE IGNITION KEY, DISCONNECT THE SPARK PLUG
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ADJUSTMENT OF SNUBBER [BRAKE FOR MANDRELS) After belt has been properly adjusted, adjust Adjusting Pin on Snubber Pull Rod as stated below: Place Mower Clutch Control Lever in "OUT" posit ion (Fig. 7A). Remove Retainer Spring holding Adjusting Pin on Snubber Pull Rod in Idler Shaft Assembly. Remove Adjusting Pin fro m hole. With the Mower Clutch Control Lever in the "OUT" Position. turn Adjusting Pin on Snubber Pull Rod until Adjust ing Pin will fit freely in hole of Idler Shaft Assemb
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• REMOVING MOWER FROM TRACTOR 1. Disengage Mower Clutch Control Lever ("ouT" position). 2.Remove Engine Belt Guard (Fig. 4). 3 .Remove belt from Engine Pulley. 4. (Refer to Fig. 7) . Remove Retainer Spring holding Adjust· ing Pin to Idler Shaft Assembly. Remove Adjusting Pin from Id ler Shaft Assembly. 5. (Refer to Fig. 8). Remove Retainer Spring from Adjusting Pin. Remove Adjusting Pin from Idler Shaft Assembly. Un hook Spring from Idler Frame and Front Axle Bracket. (Fig. 5). Remov
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REPAIR PARTS 42" ROTARY MOWER--MODEL NUMBER 917.253540 48" ROTARY MOWER--MODEL NUMBER 917.253551 ~1A 1 J ABC 0 E F G H J K J , 42' 43,44,45 ~ 46~7 ~ 48v49, 47~ ni 3911 -- 37 50 - 4-35_35_35_ 4 - 37 !IJl 38 8 - 35 3 -35 []) 36 []) 36 []) 36 .,.,.. 35 CDl - 39 - 51 J []) 40 I[]) 38 a:JI 52 ([I) 36 []136 -37 ([JJ 38 . 10 - another free manual from www.searstractormanuals.com
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REPAIR PARTS 42" ROTARY MOWER--MODEL NUMBER 917.253540 48" ROTARY MOWER--MODEL NUMBER 917.253551 KEY 42" 48" PART DESCRIPTION NO. NO. 1A X X 9479R Lever Plungt:r Cap 1 X X 9083R Lever Plunger 2 X X 8540R Dnve Lock Pin 3/ 16 x 1 - 1/2 3 X X 2876H Spring 4 X X STD551037 ·washer 13/32 x 7/8 x 14 Ga. 5 X X 673A61 lift Lever W/Piunger (Inc. Key No's. 1, 2 and 3) 6 X X 2895H Handle Grip 7 X X 280M 1 Bushing 8 X X 634A358 Pitch Adjustment Weldment 9 X X 9426H Pitch Adjustmen
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REPAIR PARTS 33 34 " B G H A B C 0 E F f43 I ·· !43 1 ..... , ., I~~ .. 3 2 - .-2 ~40 -2 Ej ~41
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REPAIR PARTS 42" ROTARY MOWER--MODEL NUMBER 917.253540 48" ROTARY MOWER--MODEL NUMBER 917.253551 42" KEY 48" PART DESCRIPTION NO. NO. 1 X X STD541031 " Hex Nut 5/16- 18 UNC 2 X X STD551 131 * Lockwasher 5/1 6 - Heavy 3 X X STD551031 *Washer 11 /32 x 11 /16 x 16 Ga. 4 X X 2629R Brake Shoe 5 X X 3770R Spring 6 X 634A590 Snubber Weldment 6 X 634A592 Snubber Weldment 7 X X STD560907 *Cotter Pin 3/32 x 3/4 8 X 634A588 Belt Guide Weldment - Center 8 X 634A591 Belt Guide Weld
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REPAIR PARTS 42" ROTARY MOWER--MODEL NUMBER 917.253540 48" ROTARY MOWER--MODEL NUMBER 917.253551 1 2 j ," ~/ 16 13 15 13 5 4 9 DESCRIPTION KEY 42" 48" PART NO. NO. Belt Tightener Link X X 3705R 1 Retainer Spring X X 4939M 2 3707R Adjusting Pin X X 3 4940M Retainer Spring 4 X X Idler Shaft Assembly 634A619 5 X X Spring X 9503H 6 X Washer 9/ 16 x 15/16 x 11 Ga. X X 1569P 7 3766R Snubber Pull Rod X X 8 Inside Idler 9 X X 634A565 Bushing X X 5386H 10 Outsi
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OPTIONAL EQUIPMENT -.g:;-.,.....,,£:~-:Jb:,....CARRIAGE BOLTS 5/16 x 3/4 GAUGE WHEEL KIT FLAT WASHERS 11/32 x 11/16 x 16 GA. LOCKWASHERS 5/16 CATALOG NO. 25383 HEX NUTS 5/16 Your mower is of the full floater type and will closely follow the contours of the ground when using the gauge wheels for height of cut position. They prevent soil gouging on sloping terrain. ASSEMBLY PLACE THE MOWER CLUTCH CONTROL LEVER IN THE "OUT" POSITION, LOCK THE PARKING BRAKE, SHIFT INTO NEUTRAL AND SHU
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REPAIR PARTS OPTIONAL EQUIPMENT ROTARY MOWER GAUGE WHEEL KIT 4 3 CATALOG NO. 25383 5 2 6 9 8 3 4 6 A B c -~ f 11 13 12 t 14 i ® 8 - (Q) 15 14 14 - - fiJJ 15 !OJ 15 KEY PART DESCRIPTION DESCRIPTION KEY PART NO. NO. NO. NO. STD541137 *Hex Nut 3/8- 24 UNF 8 STD551031 *Washer 11 /32 x 11/16 x 16 Ga. 1 2 STD551137 "Lockwasher 3/8 9 7375H Bushing 10 634A480 3 STD551037 *Washer 13/32 x 7/8 x 14 Ga. Gauge Wheel Support Assembly - L.H. 11 4 9536H Gauge Wheel STD533110 *C
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__, IP.4ff NO~ I>£.'\ C'P1 P7'/Dh DA/L ?~IC£ ( ~f?if, B ... qq - 41£),.J_£2 FR<:H'f -rt:)_cp/7"£2_ ~-/0-''j L-/0-'YY /'1\ ('l r.tJEQ nFt-r 7"/? /YYJM/EP ~ - 72J-4.3.77 another free manual from www.searstractormanuals.com
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I Sears I MODEL NO. 917.253540 OR HOW TO ORDER 917.253551 REPAIR PARTS MODEL NUMB A The Model Number will be found on a plate attached to the Rear R.H. side of the Mower Housing. Always mention the Model Number when requesting service or repair parts for your Rotary Mower. E A P ATS All parts listed herein may be ordered from any SEARS, ROE BUCK AND CO. or SIMPSONS-SEARS LIMITED retail or catalo~ store. WH EN ORDERING REPAIR PARTS, ALWAYS GIVE THE FOLLOWING INFORMATION: e THE P
