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Husqvarna SC18, Workshop Manual

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Husqvarna SC18 Workshop Manual Download Page 18

CHAIN ROUTING

The chain can be replaced by disconnecting the master link on the old chain and hooking
up the new chain to the old one. Pull the free end of the old chain until the new chain is
pulled through.

Re-connect the chain with the new master link.

To replace a broken chain the skid pan will have to be removed and the unit turned
upside down. Refer to the routing guide below for assistance.

ADJUSTING CHAIN TENSION

•

 

The chain adjuster is in front of the left rear tire.

Using a stubby 1/2” wrench tighten the

 

lock nut on the chain idler until the #40 chain

flexes approximately 1/2” ( 12mm) at mid span.

ENGINE REMOVAL

1.

 

Disconnect the throttle cable at the
handle; remove the spring that
connects the two throttle cables
from the upright.

2.

 

Do not disconnect the cable at the
engine.

3.

 

Undo the engine bolts and tilt the
engine rearward to remove the
chain and belt.

Front Axle

Idler Sprocket

Transmission
Sprocket

Rear Axle

SC18 Sod Cutter

Power Train

17

Summary of Contents for SC18

Page 1: ...Workshop Manual SC18 Sod Cutter Removing Turf Has Never Been Easier ...

Page 2: ...Husqvarna Turf Care 700 Park Street Beatrice NE 68310 FX 1 800 254 2473 Husqvarna Sod Cutter Workshop Manual P N 109869 Rev 1 10 01 03 ...

Page 3: ...xle Sprocket Location 16 2 Belt Keeper 16 3 Chain Idler 16 4 Chain Routing Adjustment 17 5 Engine Removal 17 6 Upper Pulley Location 18 7 Sprocket Location 18 8 Transmission Adjustment Replacement 19 Blade Drive 1 Blade Drive Assembly 20 2 Belt Tension 20 3 Blade Arm Replacement 21 4 Lower Pulley 21 5 Bearing Lock Collar 22 6 T Drive Replacement 23 Depth Control 1 Depth Control 30 Illustrated Part...

Page 4: ...of the handle into the tube located in front of the large black rubber handle mount Make sure to keep the rubber sleeve on the standoff located on the handle Spread the handle apart so that you can insert the other side of the handle in the same manner as stated in step number one Using the four 8 mm x 18 mm Grd 8 bolts lockwashers and flat washers flat washers against the handle and lockwasher on...

Page 5: ...ual Both take lOw 30 oil Place shift lever in neutral and raise blade before starting engine Mark sprinkler heads and remove unwanted debris before using LOADING THE SOD CUTTER DO NOT ATTEMPT TO LIFT THE SOD CUTTER 320 pounds The rental rate includes 2 ramps to load the unit into a truck or trailer The unit can be driven on and off the truck by use of the low gears forward and reverse Secure unit ...

Page 6: ... the skidpan The chain must be lubricated with a dry chain lubricant to increase life The depth adjustment knob and threaded screw must be lubricated frequently to prevent rust and locking Lubricate at all threads every 20 hours Prevent direct water pressure in to the depth adjustment assembly The chain tension should be set with 1 4 3 8 inch deflection between axle sprockets Throttle cable and cl...

Page 7: ...6 ...

Page 8: ...tenance and service instructions before attempting work Follow engine manufacturer operating and maintenance instructions Inspect area to be cut and remove rocks wire string and other objects that might present hazard before starting Identify and mark all in ground objects to be avoided such as sprinkler heads stakes water valves clothesline anchors etc This machine was designed for sod cutting on...

Page 9: ...ground 2 to 3 inches with little effort If you are unable to do so then watering may be advisable Watering the day before should give sufficient time for the soil to absorb the moisture Use your hand tool to gauge the effectiveness of your watering Allow the grass to dry before cutting to provide adequate traction for sod cutting OPERATING ON HILLS WARNING DO NOT operate on hills exceeding 35 grad...

Page 10: ...your starting point with the blade out of the ground 2 Pull the blade engagement lever toward you with one hand while lifting the handlebar with the other hand 3 Place the shift lever in slow gear turtle icon 4 Pull the throttle while maintaining a slight down pressure on the handlebar and cut a short distance then stop Put shift lever in neutral 5 Lift the edge of the sod to check the cut depth 6...

Page 11: ...TE WARNING Sod Cutters may be tipped on their engine guard for cleaning and access for no more than 2 minutes Engine damage may result from gasoline draining into the crankcase if prolonged See engine manufacturer s operating and maintenance instructions ENGINE SERVICE AND WARRANTY Contact your nearest engine manufacturers authorized servicing dealer for engine service and warranty questions Follo...

Page 12: ...de condition and wear Frame condition rust cracks etc Clutch and cable Excessive vibration Engine air cleaner see engine manual Depth adjuster B LUBRICATION SCHEDULE Item Lubricant Every 20 hours Every 60 hours As Required Storage Engine Oil Oil See Owners Manual Chain 30 W Motor oil or Chain Lubricant Linkage 30W oil Grease depth adjust screw SC18 Sod Cutter Operating Instructions Safety Maintena...

Page 13: ...FOR CLEANING ADJUSTING CHAIN TENSION UPPER CHAIN No adjustment is required LOWER CHAIN Remove chain guard Tilt the Sod Cutter forward onto the front weight Tighten the lock nut on the chain idler until the 40 chain flexes approximately 6mm at mid span Install chain guard Set Sod Cutter back to level STORAGE 1 Refer to engine manufacturer s instructions for engine storage information 2 Clean machin...

Page 14: ... Sockets plus Extensions 3 8 7 16 1 2 9 16 5 8 3 4 1 1 8 Hex head Wrenches Metric Sockets 10mm through 15mm for engine cover removal Long Nose Pliers Penetrating Oil Grease or Anti Seize Compound 5 32 Hex head in a 3 8 Socket ADVISED TOOLS The following tools are very helpful Air Ratchet with Sockets Impact Wrench 1 1 8 Socket SC18 Sod Cutter Specifications Tools 13 ...

Page 15: ...number one 3 Using the four 8 mm x 18 mm gr 8 bolts lockwashers and flat washers flat washers against the handle and lockwashers on top bolt the handle into the large black rubber handle mount and tighten securely with loctite DO NOT CROSS THREAD THE BOLTS 4 Place the depth handle into the U brackets on the main handle and secure with the 5 16 clevis pins and C clips 5 Attach the throttle cable to...

Page 16: ...ld handle in position 5 Rotate throttle lever until tab on throttle lever contacts idle speed screw remove slack from throttle cable and tighten cable screw 6 Release throttle clutch handle and check that idle speed screw contacts tab on throttle lever when throttle clutch is engaged at operator handle 7 Readjust throttle cable in necessary 8 Re install air cleaner element wing nut air filter cove...

Page 17: ... correct position touches the belt on the right side from the operator s position during blade disengagement but does not touch during blade engagement CHAIN IDLER REMOVAL Remove spring and remove the bolt holding idler with 9 16 wrench Please note the location of the two spacers for re installation later CHAIN IDLER INSTALLATION When installing the idler arm the sprocket faces rear and is inside ...

Page 18: ...e below for assistance ADJUSTING CHAIN TENSION The chain adjuster is in front of the left rear tire Using a stubby 1 2 wrench tighten the lock nut on the chain idler until the 40 chain flexes approximately 1 2 12mm at mid span ENGINE REMOVAL 1 Disconnect the throttle cable at the handle remove the spring that connects the two throttle cables from the upright 2 Do not disconnect the cable at the en...

Page 19: ...ing a 3 16 spacer and two washers will hold the pulley tight to the shaft SPROCKET LOCATIONS The top sprocket p n 3109 on the engine is located 1 2 inch from the engine case This measurement is with the chain off The sprocket has the hub facing outward away from the engine The sprocket on the lower drive transmission is up against the snap ring SC18 Sod Cutter Power Train 18 ...

Page 20: ...e engine should be removed to facilitate the operation Engine removal is covered in the T drive replacement section The front weight has to be removed With the engine and weight removed turn unit upside down to access the transmission Remove the skidpan Access the input sprocket which has to be removed The sprocket has a C clip and set screws Remove the four bolts from the transmission The front a...

Page 21: ...is established when the belt disengages completely and engages without slipping After installing a new belt it is essential to check tension after the belt has been used at least hour The preliminary setting should be about in the middle of the threads of the adjusting cable The belt may engage slightly when new and cause the blade to move but this condition will disappear after a few feet of cutt...

Page 22: ...Put nut and washer on rod end of lower blade arm and tighten 5 Tighten bolts on upper blade arm 6 Align blade with holes and attach blade with fine thread bolts and locknuts LOWER PULLEY The lower pulley is centered on the shaft of the T drive There will be about inch of shaft on each side of the pulley The pulley requires two setscrews in each hole The first needs to be tightened and the other on...

Page 23: ...n which can lock to the shaft if properly installed This is critical to a vibration free assembly Locate the bearing at the proper spacing and rotate the locking collar until it is tight Drive with punch an additional 1 8 turn The bearing is now locked in place Tighten set screw with Loctite to secure SC18 Sod Cutter Blade Drive 22 ...

Page 24: ...ngine to remove chain and belt IDLER REMOVAL Remove spring and chain idler paying attention to spacer location Remove spring and belt idler PULLEY REMOVAL Loosen the four bolts about inch holding the chain driven transmission in place 3 are shown by the arrows at right SC18 Sod Cutter Blade Drive 23 ...

Page 25: ...ve forward This will provide clearance to allow the pulley to come off shaft BLADE ARM REMOVAL Remove bolts holding blade to blade arm Remove top bolts holding blade arm and remove nuts holding blade arm to rod Shown by arrows A B Remove blade arms Unlock locking collars to loosen bearings on shaft Shown by arrow C After sanding the exposed part of rod hammer rod out of bearings A C B C B B A SC18...

Page 26: ...VE DISASSEMBLY Remove T drive to bench and remove the 1 4 inch retaining bolts on each side of unit A Remove bearing B from eccentric a bearing puller may be necessary Loosen bolt on eccentric B Use a screwdriver to spread the eccentric apart to remove A A A B B A B SC18 Sod Cutter Blade Drive 25 ...

Page 27: ...w T drive requires the collars on the bearings to face inward A Install bearings on eccentrics and tighten bolts on eccentric end of plate arm make sure the plate arms are parallel Leave the others hand tight Install washers and 1 4 inch bolt with Loctite to secure bearing B A A B B SC18 Sod Cutter Blade Drive 26 ...

Page 28: ...de and bearing A Use collar as spacer Do not use set screw B Start nut but do not tighten yet C INSTALL ROD BLADE Install rod through bearings and attach blade arms Put nut and washer on rod end and tighten Tighten bolts on upper blade arm Align blade with holes and attach with fine thread bolts and locknuts Tighten lock collars see bearing section for instructions A B C SC18 Sod Cutter Blade Driv...

Page 29: ...NSMISSION The four bolts holding the transmission should be tightened at this time use of an extension through the back will facilitate the process CHAIN IDLER INSTALLATION Install chain idler with the two spacers together and behind the idler arm to the operators side A Tighten and back off a little to provide freedom of movement B A B SC18 Sod Cutter Blade Drive A B A 28 ...

Page 30: ... the inside of chain Put chain on engine sprocket and idler and walk chain on bottom sprocket Put belt on bottom pulley and walk on top pulley FINAL ASSEMBLY Attach clutch cable to idler arm Install idler pulley leaving loose enough for movement Attach all springs to idler arms Attach throttle cable Reattach cover SC18 Sod Cutter Blade Drive 29 ...

Page 31: ...h control housing 5 Thread the rod into the housing until approximately 3 76mm of threads are exposed at the top of the housing 6 Thread the red locking nut first then the jam nut and black depth knob onto the upper part of the adjustment screw 7 Once the black knob is all the way on tighten the jam nut against the black knob 8 Hold onto the black depth knob and rotate the depth control housing do...

Page 32: ...lade engagement lever 7 540003143 Bumpers handle complete 8 540003145 Stand off kit 9 540003172 Decal kit SC18 10 540003155 Shield cover kit upper housing with hardware 11 540002154 Weight weldment with hardware 12 540003159 Skid pan complete w brackets and mounting hardware deflector 13 540003144 Handle attachment hardware kit complete 14 540003161 Throttle cable carb 15 540003162 Deflector with ...

Page 33: ...t kit 11 540003147 Linkage shift 12 540003135 Arm transmission shift with hardware 13 540003136 Bell crank shift kit 14 540003137 Rod end linkage bell crank 15 540003133 Tensioner assembly drive train 16 540003134 Sprocket drive train tensioner 17 540003123 Wheel 10 with hardware 18 540000317 Bearing 1 with locking collar 19 540005786 Stamping kit with fasteners 1 bearing 20 540003153 Axle wheel w...

Page 34: ...167 Blade with hardware 12 540030219 Blade arms and shaft 13 540000315 Bearing with locking collar with fasteners 14 540003122 Stamping kit for bearing 15 540003125 Plate rod 16 540000317 Bearing 1 with locking collar 17 540003124 Stamping kit with fasteners 1 bearing 18 540003129 Crank eccentric kit 19 540003132 Hardware kit gear box 20 540003131 Gear box right angle T drive 21 540003130 Pulley 5...

Page 35: ...d coupler depth control 5 540003115 Spring blade lift 6 540003116 Spacer bearing 7 540000317 Bearing 1 with locking collar 8 540003118 Trunnion assembly 9 540000318 Stamping kit for 1 bearing 10 540003163 Depth adjust screw 11 540003164 Knob three prong depth lock 12 540003166 Knob depth 13 540003174 Nut hex jam 1 2 13 14 540003117 Bushing polyurethane SC18 Sod Cutter Depth Control Assembly Parts ...

Page 36: ... 540003108 is wet oily or damaged clean or replace 7 Belt tension can be increased by tightening the Cable Tension nut 540003113 Blade doesn t move or stops cutting 1 If the operator tries to cut deeper than 2 Pivoting the machine back on its rear wheels while cutting can cause machine to cut too deeply 2 Make sure the blade is sharp 3 Moisture oil or grease on the belt will cause it to slip Repla...

Page 37: ... the machine may cause bolts to come loose Check and tighten all bolts periodically 2 Use Grade 8 bolts with lock nuts to bolt wheels to axle Bushing ooze out when installed 1 This is normal Trim with knife if desired Bushing on depth control assembly are wearing quickly 1 The bushings are wearable items 2 Grease polyurethane compatible ID and OD of bushing before installing 3 Be sure the maximum ...

Page 38: ...n all sprockets 540003109 540003148 540003127 3 Ensure the Chain Idler Spring 540007195 is attached 4 Check for side play in the Transmission Output Drive Sprocket 540003149 If there is side play the transmission could be damaged 5 Verify the Shift Linkage 540003147 is attached at the Shift Lever 540003146 and at the Bell Crank 540003136 and Rod End 540003137 is attached at Bell Crank 540003136 an...

Page 39: ...rifugal clutch and may creep if left in gear Some creeping is normal because of the lubricant resistance between the clutch plates Also too heavy a lubricant in Gear Reducer can cause creeping 1 Put in neutral unit will not creep 2 PRM at idle should be 1 400 200 150 Clutch will engage at 1 800 RPM s a high idle RPM may cause creeping 3 If unit continues to creep contact your local Honda dealer Ye...

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