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CAUTION Never attempt to work on your Jari Mower without first removing the spark plug or wire from spark plug. Never wear loose clothing near the unit when the engine is operating. Before starting the engine, clear the area of adults, children and pets. A sudden gust of wind and/or an unexpected move on somebody’s part can change what was a safe situation. Always exercise caution during the operation, handling, parking or storage of your mower. Shutting off and allowing engine to cool is necessary before refueling. Stop engine before attempting to clean any debris from knife assembly. CHIEF MODEL K REPAIR PARTS LIST AND OWNERS MANUAL Serial No. 13462 and later LUBRICATION (3 Zerks) Use heavy-duty gun grease every 3 hours of operation. 1. Grease zerk on drive shaft housing #4 located in the vicinity of U bolt #5. Grease until grease appears at both ends of drive shaft housing. 2. Grease two wheel zerks #49. Grease until grease appears at retainers #43 and #48. 3. Put a few drops of oil on washer #17. 4. Apply grease to the outside surface of L shaped groove in lever #18. 5. Fill engine crankcase with oil - See engine manual. Jari Serial Number: (located on frame under engine) Date Purchased: Engine (2 numbers located on engine in form of decal and/or stamped into flywheel housing) Make: H.P.: Jari Mowers, LLC 54456 Gadwall Rd. Mankato, MN 56001 Phone: 507-625-3340 Fax: 507-388-3973 Email: [email protected] www.jarimowers.com

Jari Chief Manual 2015

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Current owner's manual for Jari Chief sickle bar mower.

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Page 1: Jari Chief Manual 2015

CAUTIONNever attempt to work on your Jari Mower without first removing the spark plug or wire from spark plug. Never wear loose clothing near the unit when the engine is operating. Before starting the engine, clear the area of adults, children and pets. A sudden gust of wind and/or an unexpected move on somebody’s part can change what was a safe situation. Always exercise caution during the operation, handling, parking or storage of your mower. Shutting off and allowing engine to cool is necessary before refueling. Stop engine before attempting to clean any debris from knife assembly.

CHIEFMODEL K REPAIR PARTS LIST AND OWNERS MANUAL

Serial No. 13462 and later

LUBRICATION (3 Zerks)Use heavy-duty gun grease every 3 hours of operation. 1. Grease zerk on drive shaft housing #4 located in the vicinity of U bolt #5. Grease until grease appears at both ends of drive shaft housing. 2. Grease two wheel zerks #49. Grease until grease appears at retainers #43 and #48. 3. Put a few drops of oil on washer #17. 4. Apply grease to the outside surface of L shaped groove in lever #18.5. Fill engine crankcase with oil - See engine manual.

Jari Serial Number: (located on frame under engine)

Date Purchased:

Engine (2 numbers located on engine in form of decal and/or stamped into flywheel housing)

Make: H.P.:

Jari Mowers, LLC54456 Gadwall Rd.Mankato, MN 56001

Phone: 507-625-3340Fax: 507-388-3973

Email: [email protected]

Page 2: Jari Chief Manual 2015

SERIAL NO. 13462 AND LATER

Page 3: Jari Chief Manual 2015

ITEM PART DESCRIPTION QUAN. ITEM PART DESCRIPTION QUAN.1 317400 Main Frame Assembly, Chief 1 71 900158 5/16"-18 x 3/8" Socket Head Cap Screw 12 309900 Drive Shaft Assembly 1 72 211400 Pulley Key 3/16" Sq. x 1-1/8" 13 114700 Felt Washer 2 73 112200 Allen Wrench Assembly 14 203520 Drive Shaft Housing Subassembly 1 74 102700 Divider Rod 1/4" 15 203590 U-Bolt (Front) 1 102701 Divider Rod 5/16" 16 203540 U-Bolt Assembly (Rear) 1 75 104800 Eccentric Roller 17 900075 5/16" - 24 Lock Nut 4 107 203200 32" Sickle Bar Assembly 18 114620 Felt Retainer 1 108 402800 32" Guard Bar 19 204900 Drive Shaft Pulley 1 109 300200 Ledger Plate 1610 900158 5/16" - 18 x 3/8" Socket Head Cap Screw 2 110 900178 5/32x1-1/4" Countersunk Head Rivet 1611 211400 Pulley Key 3/16" Sq. x 1-1/8" 1 111 201810 Left Guard Assembly 112 301110 Idler Support Assembly 1 112 101810 Right Assembly 126 301300 Idler Pulley 1 113 101710 Center Guard Assembly 127 900175 1/2" Internal Tooth Lock Washer 1 114** 900160 3/8-16 x 15/16" Guard Bolt 828 900172 1/2"-20 Hex Nut 1 115 100800 Skid 229* 205510 Power Unit Shaft 1 116 900161 3/8-16 x 1-1/8" Hex Head Screw 230 205810 Power Unit Pulley Assembly 1 117 900162 3/8" Internal tooth Lock Washer 231 900158 5/16-18 x 3/8" Socket Head Screw 2 118 102900 Wear Plate 432 306101 Bearing and Bracket 2 119 900159 3/8-16 x 1-1/4" Carriage Bolt 833 900043 3/8-16 x 1-1/4" Hex Head Screw 2 120** 900163 3/8-16" Hex Jam Nut 1634 900163 3/8-16" Jam Nut 2 121 102500 Knife Sections (Smooth) 1535 215510 Control Fork Assembly 1 122 302600 Knife Back 32" 136 115600 Control Rod Bracket 1 123 900177 Round Head Rivets 2837 900165 7/16-20" Jam Nut 2 124*** 302510 Knife Assembly Smooth 32" 138 114700 Felt Washer 2 125 300400 Knife Clip 439 114620 Retainer Washer 2 126 900074 5/16-24 x 3/4" Hex Head Screw 440 900175 1/2" Internal Tooth Lock Washer 2 127 900158 5/16-18 x 3/8" Socket Head Screw 441 205900 Drive Pinion 2 128 103000 Head Wear Plate 142 900174 1/2-20 x 3" Hex Head Screw 2 129 900164 3/8-16 x 1 1/4" Attachment Bolts 343 114620 Retainer Washer 2 130 900004 3/8" Split Lock Washer 344 114700 Felt Washer 4 131 900045 3/8-16" Hex Nut 345 110610 Wheel Assembly 2 132 100100 Knife Head Assembly 146 110000 Tire 2 133 900156 10-32 x 11/16" Socket Head Screw 447 110010 Tire and Wheel Assembly 2 134 900157 10-32" Flex Lock Nut 448 114600 Retainer Washer 2 142*** 211301 Engine Pulley 3/4" Bore 149 104610 Cap Screw / Zerk Assembly 2 (Serial No. 11594 & After)50 106900 Control Fork Spring 1 143 203100 Handle Weldment 151 212100 Cog Drive Belt 1 144 204201 (2) Piece Collar 152 307610 Handle Bar Assembly 1 145 203105 Linkage Rod 153 900168 3/8-16 x 2" Curved Head Screw 2 146 203104 Belt Stop 154 900162 3/8" Internal Tooth Lock Washer 2 147 101002 Linkage Ball End 155 900045 3/8-16" Hex Nut 2 148 203103 Spring Bracket 157 119600 Start-Run Decal 1 149 900011 1/4-20 x 1 1/4 Hex Head Screw 158 108200 Handle Bar Grip 2 150 900008 1/4-20 Hex Nut 259 207920 Shift Level Assembly 1 152 9521 #10 Flat Washer 260 900167 3/32 x 3/4" Cotter Pin 4 153 41866 10-32 Hex Nut 361 108100 Knob 1 154 3747 1/4-20 x 3/4 Hex HD Screw 162 215400 Upper Control Rod 1 155 42048 1/4 x 1/8 Shoulder Bolt 263 900166 5/16-24 x 1" Hex Head Screw 1 156 42049 1/4-20 x 5/8 Socket HD Cap Screw 264 900019 5/16" Flat Washer 1 157 203106 Spring 165 900075 5/16" - 24" Hex Nut 1 158 3932 10-32 Hex Nut Nylock 166 107188 Fender Assembly 167 900029 1/4-20 x 3/4" Hex Head Screw 268 217800 Jari Decal 169 317810 Jari Handle Bar Decal 170 211300 Truss Head Sems (Fender) 1/4"-20 x 1/2" 2

Parts and Accessories

** Use 900159, 900004 and 900045 to replace 900160 and 900163*** Item 124 consists of items 121,122 and 123 assembled

* 205510 Do not confuse this solid shaft with hollow lubricated shaft 205500 which was used on early Chiefs and is now obsolete.

Page 4: Jari Chief Manual 2015

PARTS AND ACCESSORIES NOT ILLUSTRATEDPART #2 0 4 6 0 0

2 0 4 7 0 0

2 1 7 0 0 0

Zerk, straight, (drive in), used in cap screw #49 on wheel.Eccentric Pin, used in drive head, shown immediately behind #4.Fence guard and adjustable skid (single), 1 ½” to 4 ½” cutting height, replaces #115 standard skid, order 2 for replacement of standard skid.

309910

104000

210610

Dual wheel and tire assembly, (single), installs the same as single wheel, order two for replacement of the single wheels. Bearing (bushing), located in each end of drive shaft housing #4.Zerk, straight, (threaded) used in drive shaft housing #4.

For Chiefs equipped with sickle bars other than 32” illustrated, contact Jari Mowers for parts breakdown. Part numbers are the same except on guard bars, knife assemblies and knife backs. Quantities will vary depending on length of bar. Maximum size of bar used with Chief is 36”.

ASSEMBLY, OPERATING & SERVICE INSTRUCTIONS FOR THE JARI CHIEF MODEL K

The Jari warranty may be invalid unless these instructions are read and followed. For warranty, service, parts and information on new or used engines, first read engine manual and then, contact engine dealer in your area. All referrals to left and right are from the operator’s position.

ASSEMBLY

1. Put eccentric roller item #75 on eccentric pin at the end of drive shaft. It is not necessary, but grease can be applied to pin. 2. Remove three nuts #131, 3 washers’ #130 underneath sickle bar and insert the three bolts along with bar #107-32 into three holes in the mounting plate provided on #4 while guiding roller into channel of knife head #132. Replace washers and nuts and tighten firmly.3. Remove cotter key from divider rod #74 and insert rod into cylinder provided on knife head #132 with hole in rod going first. When hole in rod appears at the bottom of cylinder, insert cotter key and spread.4. Attach handlebars #52 to upper part of frame #1 where two holes provided with two curved headed cap screws and lock nuts. See front page also. 5. Connect control rod #62 to bracket #36 with 5/16 x 1” cap screw #63, washer #64 and nut #65.6. Install knobs #61 on lever #59 and leave lever in the down or disengaged position.7. Drive pinion #41 is adjusted to tire #46 by 2 nuts #37 located on lower control rod #35 before and after rod goes through bracket #36. With lever #59 still in the down position ground spark plug, engage sickle bar clutch lever #18 (located to left side of engine) by lifting up. Pull starter cord on engine slowly until a drive pinion tooth is at its closest proximity to tire. Turn tire or wheel by hand until one groove of the tire is directly across from pinion tooth. Concentrate only on one tire and pinion –other side will adjust automatically. Pull back and up on lever #59. Pinion tooth should depress rubber in groove of the tire slightly (1/32” is adequate). If further adjustment is required loosen bottom nut #37 clockwise to increase depression in rubber or counterclockwise to decrease depression. When top nut is set, tighten bottom nut against bracket, #36. Maintain this adjustment as mower is used. If traction is doubtful, with the above setting, read the remainder of this manual andthen, start unit on a cement floor, adjust throttle to about ¼ speeds, engage sickle bar clutch lever #18, take hold of handle bar with one hand, pull back and up on lever #59 and attempt to hold unit back with both hands. Be prepared because if above adjustments have been followed, this procedure will remove all doubts about traction. Assembler may notice a degree of flexibility in control rods and the drive pinion mechanism. In use, if pinion tooth contacts top of tire instead of groove the flexibility with accompanying tension allows the pinion tooth to fall in the groove immediately. If one pinion lagsbehind the other in movement to engage tires, squirt penetrating oil in the various pivot points (not sealed bearings #32) of the mechanism to remove paint. Engage and disengage lever #59 several times to help remove paint or stand at the side of the unit and grasp lower control rod #35 with fingers while hooking the thumbs over the handle bar and squeezing the control rod toward handle bar several times. Do this from both sides of machine.

Page 5: Jari Chief Manual 2015

8. Drive shaft housing #4 rotates which in turn, allows sickle bar #107-32 to float from side to side when encountering uneven ground. Four nuts #7 located on U-bolts #5 and #6 control ease of float. To test float, stand beside machine facing forward and push down on handle bar with one hand. Sickle bar should not flop or move by itself. Extend foot forward and tap the top of sickle bar with your foot. It should now move downward and stay in this position until you tap it again or release the handle bar slowly which allows the sickle bar to return to its original position. To loosen float, loosen the four nuts evenly – to tighten float, tighten nuts evenly. When the machine is new, paint may have seized the area around #5 and #6.9. Check all bolts, nuts and setscrews for tightness except as noted for the setscrews #127 located in the knife clips #124 and nut #20. After 2-3 hours of operation recheck all bolts, nuts and setscrews for tightness and thereafter, check periodically as indicated. 10. Check unit over for adequate lubrication. Drive shaft housing #4 filled with grease via zerk on housing near #5. Grease must appear at both ends of housing.

TO START ENGINE

1. Read engine manual and fill oil as instructed.2. Your Jari Chief is equipped with a sickle bar clutch lever #18 for your convenience in starting the engine. By depressing this lever, located to the left of the engine, the belt loosened enabling the engine to start without any operating load. Lever is fully depressed when you feel the cam action of the lever. Put lever #59 in down position.3. Close choke completely and pull starter rope once. Open choke slightly and pull rope again. When engine starts, gradually open choke until completely open.4. With engine running, lift sickle bar clutch lever thus engaging knife assembly. By pulling back and up on lever #59 your unit is self-propelled.

USE OF LEVERS

1. CAUTION: The sickle bar clutch lever designed as an aid to easy starting and possibly an emergency. Do not engage or disengage either of the levers and attempt to remove debris from any part of the unit – STOP THE ENGINE to remove debris.2. When the mower is operating, disengaging either lever will stop forward motion. Disengaging sickle bar lever will stop both the sickle bar and forward motion.3. Never allow engine to operate with sickle bar lever disengaged for long. Engine pulley will build up heat in belt and destroy it.4. When operating mower, set throttle where required (see mowing tips), leave sickle bar lever engaged and use self-propelled lever to start, stop and turn or maneuver. You can, but it is not necessary to adjust throttle.

ADJUSTING BELT SHOCK ABSORBER

1. Sickle bar lever #18 with spring #15 and bolt #14 acts as a shock absorber to prevent belt breakage. See lubrication requirements on front page.2. To test shock absorber, push down on idler pulley #26 several times with sickle bar lever in up position. There should be a dragging or slightly binding action for proper adjustment. To adjust, remove left wheel and loosen nut on bolt. Turn bolt clockwise to increase binding or counterclockwise to decrease binding. Hold bolt in final position, retighten nut and replace wheel. If the shock absorber is, too tight belt will break when a hard object such as a stone lodges in sickle bar. If too loose, beltwill slip when cutting.

BELT REPLACEMENT

1. Cog Belt has automatic spring tension and requires no tightening.2. To install belt, stand at left side of unit facing forward, form loop in belt and place cogs in groove at the bottom of drive pulley #9. With left hand, twist the belt ¼ turn toward you and place backside of belt in the flat groove on top of the power unit pulley #30. With the right hand, place the cogs of the belt in the V groove on top of the idler pulley #26. If necessary, push down on idler pulley with the right hand to obtain sufficient slack and slide remaining end of belt over engine pulley #70.3. The belt will make an X immediately in front of engine pulley with cogs facing the operator on the left side and the back of the cog belt facing the operator on the right side. The clearance between those portions of the belt on the X should be in the proximity of 1/16” when the sickle bar lever is up. To obtain proper clearance in X when sickle bar lever is up, loosen setscrews in engine pulley and slide pulley left or right, check belt alignment with pulleys and retighten setscrews. If the belt touches in the down position of the sickle bar lever, disregard.4. An L shaped hook welded to the sickle bar lever near engine pulley, which hovers over the belt. The hook should clear the belt in either position of the lever; however when the lever is down, hook should be close to belt to prevent belt hop.5. If belt should ride on its side or walk, off pulley, reverse belt so it runs in the opposite direction.

MOWING TIPS1. The secret to good cutting lies in sickle bar adjustment. A well-adjusted sickle bar sounds similar to a sewing machine. One that is too loose or too tight clatters. When machine is new, paint may cause binding in the area where knife clips #125 contact knife assembly #124. Put oil in this area before starting machine. After a few minutes of operation, recheck adjustments as shown in sickle bar diagram

Page 6: Jari Chief Manual 2015

2. It is not necessary to use the full throttle setting provided on your Jari. Generally, ¼ to ¾ speeds is adequate to cut whatever is at hand. Start with ¼ speed and if engine lugs, gradually, increase speed to point where engine does not lug. Over the years as the engine wears, it will take more throttle setting to accomplish ¼ to ¾ speeds.3. When mowing in rough terrain, handle bars will gyrate. Do not fight handlebars-allow them to gyrate. Guide the mower with one hand. Some operators prefer to walk to the rear and one side of the mower instead of directly behind mower. 4. Always take a full cut with your sickle bar. Otherwise, you will plug it material, which has cut and is now laying in a horizontal attitude. Recognize the same horizontal situation if you decide to make a second pass over an area just cut. Also, watch shafts and pulleys for wrapping under these conditions. After area grows back, the situation resolves itself as horizontal material settles to the bottom.5. When mowing under objects such as branches and fence rails, use outside perimeter of sickle bar. If you use the center, you may snap the divider rod #104 off. If divider rod should disappear when cutting heavy material, place a rubber washer or piece of wiper hose on the divider rod between the cotter pin and the bottom of the cylinder on the knife head.6. Sometimes when mowing, the point of a guard #111, 112 or 113 will contact the center of a thick piece of brush and mower will hesitate. To counteract, jiggle handle bar from side to side and mower will continue.7. In the interest of your SAFETY and engine requirements, follow this dual-purpose tip when mowing slopes, be sure crankcase filled with oil to assure lubrication as you mow across the face of the slope. Make 2-minute passes and when turning around, carefully walk above your mower. At the top of your turn, push down on handles bars to level up crankcase.8. If you encounter hard wood saplings up to 1 3/8” in size, release self-propelled lever and gradually push mower into sapling. Knife assembly will saw its way through.9. If sickle bar lodged under a rock or heavy object, do not push down on handlebars. Pull unit straight back. Failure to do so will force knife head away from drive head and lead to repairs.

WINTER STORAGE

1. Add gas additive and run mower for 30 minutes.

SICKLE BAR ADJUSTMENTS1. Knife clips #125 controls up and down movement of knife assembly #124. To adjust, do not loosen bolt #126 – turn set screw #127 clockwise to tighten, counterclockwise to loosen. Tighten clips so they are tight without binding. Clips that bind will overheat damage and groove knife assembly. To test for binding, ground spark plug, place sickle bar lever in start position and turn twin pulley #23 by hand or after 2 minutes running, stop engine and carefully feel clips for heat. Clips should be warm tothe touch-not hot. Each knife section #121 in knife assembly #124 should contact a ledger plate #109, located in each guard such as #111, similar to a well-adjusted pair of scissors. Socket head screws 133, nuts #134 and knife assembly #124, although specially hardened, will break and cause poor cutting if the socket screws are not tight and knife clips are not properly adjusted.2. Wear plates #118, located around each knife clip, control front to back movement of knife assembly. To correct front to back play, slightly loosen nuts on two bolts #119 in each wear plate and tap wear plate forward with hammer. Adjust and tighten inner wearing plate’s first, then outer wearing plates.

Page 7: Jari Chief Manual 2015

Jari Mowers, LLC54456 Gadwall Rd.Mankato, MN 56001

Phone: 507-625-3340Fax: 507-388-3973

Email: [email protected]