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20

SERVICE AND ADJUSTMENTS

"D"

"D"

MANDREL

FIG. 18

FIG. 19

BOTH FRONT LINKS MUST BE EQUAL IN LENGTH

SUSPENSION ARM

LIFT LINK ADJUSTMENT NUT

FIG. 17

NUT "E"

NUT "F"

FRONT LINKS

TRUN NION

FIG. 16

“A”

“A”

BOTTOM EDGE OF 
MOWER
TO GROUND

BOTTOM EDGE 
OF MOWER
TO GROUND

GROUND LINE

FRONT-TO-BACK ADJUSTMENT (See Figs. 18 and 19) 

IMPORTANT:  DECK MUST BE LEVEL SIDE-TO-SIDE. IF THE 
FOLLOWING FRONT-TO-BACK ADJUSTMENT IS NECESSARY, 
BE SURE TO AD JUST BOTH FRONT LINKS  EQUAL LY  SO  
MOWER  WILL STAY LEVEL SIDE-TO-SIDE.      

To obtain the best cutting results, the mower housing 
should be adjusted so that the front is approximately 1/8" 
to 1/2" lower than the rear when the mower is in its high-
est position.

Check adjustment on right side of tractor.  Measure dis tance 
“D” directly in front and behind the mandrel at bottom edge 
of mower housing as shown.
• 

Before making any necessary adjustments, check that 
both front links are equal in length.  

• 

If links are not equal in length, adjust one link to same 
length as other link.

• 

To lower front of mower loosen nut “E” on both front 
links an equal number of turns.

• When 

distance 

“D” is 1/8" to 1/2" lower at front than 

rear, tighten nuts “F” against trunnion on both front 
links.

• 

To raise front of mower, loosen nut “F” from trunnion 
on both front links. Tighten nut “E” on both front links 
an equal number of turns.  The two front links must 
remain equal in length.

• When 

distance 

“D” is 1/8" to 1/2" lower at front than rear, 

tighten nut “F” against trunnion on both front links.

• Recheck 

side-to-side 

adjustment.

TO LEVEL MOWER HOUSING

Adjust the mower while tractor is parked on level ground 
or driveway.  Make sure tires are properly inflated (See 
“PROD UCT SPECIFICATIONS” section of this manual).   If 
tires are over or underinflated, you will not properly adjust 
your mower.

SIDE-TO-SIDE ADJUSTMENT (See Figs. 16 and 17)
• 

Raise mower to its highest position.

• 

At the midpoint of both sides of mower, measure height 
from bot tom edge of mower to ground.   Distance “A” 
on both sides of mower should be the same or within 
1/4" of each other.

• 

If adjustment is necessary, make adjustment on one 
side of mower only.

• 

To raise one side of mower, tighten lift link ad just ment 
nut on that side.

• 

To lower one side of mower, loosen lift link ad just ment 
nut on that side.

NOTE:  Three full turns of adjustment nut will change mower 
height about 1/8".
• 

Recheck measurements after adjusting.

TO REPLACE MOWER BLADE DRIVE BELT 
(See Fig. 20)

The mower blade drive belt may be replaced without tools.  
Park the tractor on level surface.  Engage parking brake.  

BELT REMOVAL -
• 

Place attachment clutch in “DISENGAGED” po si tion.

• Move 

at 

tach ment lift lever forward to lower mower to 

its lowest position.

• 

Roll belt off engine pulley.

• 

Work belt off both mandrel pulleys and idler pulleys.

• 

Pull belt away from mower. 

BELT INSTALLATION -
• 

Work new belt around both mandrel pulleys and idler 
pulleys.

• 

Install new belt into engine pulley groove.

• 

Make sure belt is inside the belt keeper at the idler and 
on both sides of the wire belt keeper as shown.

IMPORTANT: CHECK BELT FOR PROPER ROUTING IN ALL 
MOWER PULLEY GROOVES.

Summary of Contents for 96011024900

Page 1: ...532 40 88 72 09 12 06 CL PRINTED IN U S A MODEL NO MC16H38ST 96011024900 16 0 HP 38 Inch Lawn Tractor www mcculloch biz...

Page 2: ...s catcher or unclogging the discharge guard Operate machine only in daylight or good artificial light Do not operate the machine while under the influence of alcohol or drugs Watch for traffic when op...

Page 3: ...ch towed equipment except at the hitch point Follow the manufacturer s recommendation for weight limits for towed equipment and towing on slopes Never allow children or others in or on towed equip men...

Page 4: ...est covered brush coveredorgrass covered land unless the engine s exhaust system is equipped with a spark arrester meeting applicable local or state laws if any If a spark arrester is used it should b...

Page 5: ...oot Steering Wheel Adapter 1 Washer 17 32 x 1 3 16 x 12 Gauge Seat 2 Keys Slope Sheet Keys 1 Large Flat Washer 1 Oil Drain Tube For Future Use 1 Knob 1 Hex Bolt 5 16 18 x 4 1 5 16 Lock Washer Steering...

Page 6: ...ed holes in pan Push down on seat to engage shoulder bolts in slots and pull seat towards rear of tractor Pivot seat and pan forward and assemble adjustment knob and flat washer loosely Do not tighten...

Page 7: ...gine oil level and fill fuel tank with gasoline FIG 2 ADJUSTMENT KNOB FLAT WASHER 02615 02617 SEAT PAN SHOULDER BOLTS SEAT 02602 CONNECT BATTERY See Figs 3 and 4 CAUTION Do not short battery termi nal...

Page 8: ...o STOP position Continue with the instructions that follow CHECKLIST BEFORE YOU OPERATE YOUR NEW TRACTOR WE WISH TO ASSURE THAT YOU RECEIVE THE BEST PERFORMANCE AND SATISFACTION FROM THIS QUALITY PROD...

Page 9: ...ngine FREEWHEEL CONTROL Disengages transmission for pushing or slowly towing the tractor with the engine off IGNITION SWITCH Used for starting and stopping the engine MOTION CONTROL LEVER FIG 5 LIFT L...

Page 10: ...ENGINE Move throttle control between half and full speed fast position NOTE Failure to move throttle control between half and fullspeed fast position beforestoppingmaycauseengine to backfire Turn ign...

Page 11: ...ld result in serious injury or death The safety alert symbol is used to identify safety inform ation about hazards which can result in death serious injury and or property damage DANGER indicates a ha...

Page 12: ...D FIG 7 TO OPERATE MOWER See Fig 7 Your tractor is equipped with an operator presence sens ing switch Any attempt by the operator to leave the seat withtheenginerunningandtheattachmentclutchengaged wi...

Page 13: ...temperature AUTOMATIC TRANSMISSION WARM UP Beforedrivingtheunitincoldweather thetransmission should be warmed up as follows Be sure the tractor is on level ground Place the motion control lever in ne...

Page 14: ...gine is running move throttle control to slow position With motion control lever in neutral N position slowly disengage clutch brake pedal Move motion control lever to full forward position and hold f...

Page 15: ...ilter 1 2 IMPORTANT DO NOT OIL OR GREASE THE PIVOT POINTS WHICH HAVE SPECIAL NYLON BEARINGS VISCOUS LUBRICANTS WILL ATTRACT DUST AND DIRT THAT WILL SHORTEN THE LIFE OF THE SELF LUBRICATING BEARINGS IF...

Page 16: ...ROS ON position and the attachment clutch en gaged any attempt by the operator to shift into reverse should NOT shut off the engine CAUTION Useonlyareplacementblade approved by the manufacturer of you...

Page 17: ...ne and after each eight 8 hours of operation Tighten oil fill cap dipstick securely each time you check the oil level FIG 12 FIG 11 BATTERY Yourtractorhasabatterychargingsystemwhichissufficient for no...

Page 18: ...urfaces as necessary Make sure the cooling shrouds are reinstalled NOTE Operating the engine with a blocked grass screen dirtyorpluggedcoolingfins and orcoolingshroudsremoved will cause engine damage...

Page 19: ...se suspension arms Slide mower out from under tractor IMPORTANT IFANATTACHMENTOTHERTHANTHEMOWER DECK IS TO BE MOUNTED ON THE TRACTOR REMOVE THE FRONT LINKS AND HOOK THE CLUTCH SPRING INTO SQUARE HOLE...

Page 20: ...F against trunnion on both front links Recheck side to side adjustment TO LEVEL MOWER HOUSING Adjust the mower while tractor is parked on level ground or driveway Make sure tires are properly inflate...

Page 21: ...BRAKE See Fig 21 Your tractor is equipped with an adjustable brake system which is mounted on the right side of the transaxle If tractor requires more than five 5 feet to stop at highest speed in high...

Page 22: ...moval for service or replacement it should be purged after reinstallation and beforeoperatingthetractor See PURGETRANSMISSION in the Operation section of this manual ADJUSTMENT BOLT FIG 23 NEUTRAL LOC...

Page 23: ...ANT YOURTRACTORISEQUIPPEDWITHA12VOLT SYSTEM THE OTHER VEHICLE MUST ALSO BE A 12 VOLT SYSTEM DONOTUSEYOURTRACTORBATTERYTOSTART OTHER VEHICLES TO ATTACH JUMPER CABLES Connect one end of the RED cable to...

Page 24: ...UELSYSTEMPARTSSUCH AS CARBURETOR FUEL FILTER FUEL HOSE OR TANK DURING STORAGE ALSO EXPERIENCE INDICATES THAT ALCOHOL BLENDED FUELS CALLED GASOHOL OR USING ETHANOLORMETHANOL CANATTRACTMOISTUREWHICH LEA...

Page 25: ...gnition switch 7 Check replace ignition switch 8 Faulty solenoid or starter 8 Check replace solenoid or starter 9 Faulty operator presence switch es 9 Contact an authorized service center department E...

Page 26: ...Tighten blade bolt 7 Buildup of grass leaves and trash under mower 7 Clean underside of mower housing 8 Mower drive belt worn 8 Replace mower drive belt 9 Blades improperly installed 9 Reinstall blad...

Page 27: ...never across the face Do not mow slopes greater than 15 degrees Make turns gradually to prevent tipping or loss of control Exercise extreme caution when changing direction on slopes 1 Fold this page a...

Page 28: ...www mcculloch biz...

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