Page 1
PR20H42STC LAWN TRACTOR ALWAYS WEAR EYE PROTECTION DURING OPERATION Do Not Throw Away WARNING: Read this Owner's Manual and follow all Warnings and Safety Instructions. Failure to do so can result in serious injury. 178112 1.12.01 TR Printed in U.S.A.
Safe Operation Practices for Ride-On Mowers IMPORTANT: THIS CUTTING MACHINE IS CAPABLE OF AMPUTATING HANDS AND FEET AND THROWING OBJECTS. FAILURE TO OBSERVE THE FOLLOWING SAFETY INSTRUCTIONS COULD RESULT IN SERIOUS INJURY OR DEATH. I. GENERAL OPERATION • Read, understand, and follow all instructions in the manual and on the machine before starting.
Page 3
Safe Operation Practices for Ride-On Mowers • Be sure the area is clear of other people before mowing. Stop machine if anyone enters the area. • Never carry passengers or children even with the blades off. • Do not mow in reverse unless absolutely necessary. Always look down and behind before and while backing.
Your new tractor has been assembled at the factory with exception of those parts left unassembled for shipping purposes. To ensure safe and proper operation of your tractor all parts and hardware you assemble must be tightened securely. Use the correct tools as necessary to insure proper tightness.
Page 7
SEAT PAN BATTERY BOX DOOR TERMINAL FIG. 2 INSTALL SEAT (See Fig. 3) Adjust seat before tightening adjustment knob. • Remove adjustment knob and flat washer securing seat to cardboard packing and set aside for assembly of seat to tractor. •...
TO INSTALL MULCHER PLATE (See Fig. 4) NOTE: If you installed the mulching blades you will need to install the mulcher plate. • Raise and hold deflector shield in upright position. • Place front of mulcher plate over front of mower deck opening and slide into place, as shown.
These symbols may appear on your tractor or in literature supplied with the product. Learn and understand their meaning. BATTERY CAUTION OR WARNING ENGINE ON ENGINE OFF FUEL CHOKE ATTACHMENT REVERSE CLUTCH ENGAGED ATTACHMENT CLUTCH DISENGAGED IGNITION DANGER, KEEP HANDS AND FEET AWAY OPERATION REVERSE FORWARD...
Page 10
KNOW YOUR TRACTOR READ THIS OWNER'S MANUAL AND SAFETY RULES BEFORE OPERATING YOUR TRACTOR Compare the illustrations with your tractor to familiarize yourself with the locations of various controls and adjustments. Save this manual for future reference. CHOKE CONTROL THROTTLE CONTROL CLUTCH/BRAKE PEDAL...
The operation of any tractor can result in foreign objects thrown into the eyes, which can result in severe eye damage. Always wear safety glasses or eye shields while operating your tractor or performing any adjustments or repairs. We recommend a wide vision safety mask over spectacles or standard safety glasses.
• For best cutting performance, grass over 6 inches in height should be mowed twice. Make the first cut relatively high; the second to desired height. TO ADJUST GAUGE WHEELS (See Fig. 7) Gauge wheels are properly adjusted when they are slightly off the ground when mower is at the desired cutting height in operating position.
FIG. 9 TOWING CARTS AND OTHER ATTACH- MENTS Tow only the attachments that are recommended by and comply with specifications of the manufacturer of your tractor. Use common sense when towing. Too heavy of a load, while on a slope, is dangerous. Tires can lose traction with the ground and cause you to lose control of your tractor.
NOTE: If at a high altitude (above 3000 feet) or in cold temperatures (below 32 F) the carburetor fuel mixture may need to be adjusted for best engine performance. See “TO ADJUST CARBURETOR” in the Service and Adjustments section of this manual. PURGE TRANSMISSION CAUTION: Never engage or disengage freewheel lever while the engine is run-...
Page 15
MULCHING MOWING TIPS IMPORTANT: FOR BEST PERFORMANCE, KEEP MOWER HOUSING FREE OF BUILT-UP GRASS AND TRASH. CLEAN AFTER EACH USE. • The special mulching blade will recut the grass clippings many times and reduce them in size so that as they fall onto the lawn they will disperse into the grass and not be noticed.
CUSTOMER RESPONSIBILITIES TRACTOR Always observe safety rules when performing any mainte- nance. BRAKE OPERATION If tractor requires more than six (6) feet stopping distance at high speed in highest gear, then brake must be adjusted. (See “TO ADJUST BRAKE” in the Service and Adjustments section of this manual).
CUSTOMER RESPONSIBILITIES NOTE: The original equipment battery on your tractor is maintenance free. Do not attempt to open or remove caps or covers. Adding or checking level of electrolyte is not necessary. TO CLEAN BATTERY AND TERMINALS Corrosion and dirt on the battery and terminals can cause the battery to “leak”...
Page 19
CUSTOMER RESPONSIBILITIES CLEAN AIR INTAKE/COOLING AREAS To insure proper cooling, make sure the grass screen, cooling fins, and other external surfaces of the engine are kept clean at all times. Every 100 hours of operation (more often under extremely dusty, dirty conditions), remove the blower housing and other cooling shrouds.
SERVICE AND ADJUSTMENTS CAUTION: BEFORE PERFORMING ANY SERVICE OR ADJUSTMENTS: • Depress clutch/brake pedal fully and set parking brake. • Place motion control lever in neutral (N) position. • Place attachment clutch in “DISENGAGED” position. • Turn ignition key “OFF” and remove key. •...
Page 21
SERVICE AND ADJUSTMENTS SIDE-TO-SIDE ADJUSTMENT (See Figs. 19 and 20) • Raise mower to its highest position. • At the midpoint of both sides of mower, measure height from bottom edge of mower to ground. Distance “A” on both sides of mower should be the same or within 1/4" of each other.
Page 22
SERVICE AND ADJUSTMENTS TO REPLACE MOWER BLADE DRIVE BELT (See Fig. 23) The mower blade drive belt may be replaced without tools. Park the tractor on level surface. Engage parking brake. BELT REMOVAL - • Remove mower from tractor (See “TO REMOVE MOWER”...
Page 23
SERVICE AND ADJUSTMENTS TRANSMISSION REMOVAL/REPLACEMENT Should your transmission require removal for service or replacement, it should be purged after reinstallation and before operating the tractor. See “PURGE TRANSMIS- SION” in the Operation section of this manual. TRANSAXLE MOTION CONTROL LEVER NEUTRAL ADJUSTMENT (See Fig.
Page 24
SERVICE AND ADJUSTMENTS TO START ENGINE WITH A WEAK BATTERY (See Fig. 28) CAUTION: Lead-acid batteries generate explosive gases. Keep sparks, flame and smoking materials away from bat- teries. Always wear eye protection when around batteries. If your battery is too weak to start the engine, it should be recharged.
Page 25
SERVICE AND ADJUSTMENTS INTERLOCKS AND RELAYS Loose or damaged wiring may cause your tractor to run poorly, stop running, or prevent it from starting. • Check wiring. See electrical wiring diagram in the Repair Parts section. TO REPLACE FUSE Replace with 20 amp automotive-type plug-in fuse. The fuse holder is located behind the dash.
Immediately prepare your tractor for storage at the end of the season or if the tractor will not be used for 30 days or more. CAUTION: Never store the tractor with gasoline in the tank inside a building where fumes may reach an open flame or spark.
TROUBLESHOOTING POINTS PROBLEM CAUSE Will not start Out of fuel. Engine not “CHOKED” properly. Engine flooded. Bad spark plug. Dirty air filter. Dirty fuel filter. Water in fuel. Loose or damaged wiring. Carburetor out of adjustment. Engine valves out of adjustment. Hard to start Dirty air filter.
Page 28
TROUBLESHOOTING POINTS PROBLEM CAUSE Engine continues to run Faulty operator-safety presence control system. when operator leaves seat with attachment clutch engaged Poor cut - uneven Worn, bent or loose blade. Mower deck not level. Buildup of grass, leaves, and trash under mower. Bent blade mandrel.
Page 29
TRACTOR - - MODEL NUMBER PR20H42STC SCHEMATIC AMMETER (OPTIONAL) WHITE IGNITION SWITCH IGNITION SWITCH POSITION CIRCUIT “MAKE” M+G+A1 NONE RUN/LIGHT B+A1 A2+L B+A1 NONE START B + S + A1 NONE BATTERY FUSE CLUTCH / BRAKE (PEDAL UP) WHITE BLACK BLACK ATT'MENT CLUTCH BLACK...
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC ELECTRICAL PART DESCRIPTION 163465 Battery 74760412 Bolt Hex Hd 1/4-20unc X 3/4 156417 Case Battery Mech Hinge 153664 Switch Interlock Push-In 166181 Harness Socket Light 4152J Bulb, Light # 1156 4799J Cable Battery 146147 Cable Battery 6 Ga Red w/16 wire 175158...
Page 32
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC CHASSIS...
Page 33
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC CHASSIS PART DESCRIPTION 169830 Chassis 176554 Drawbar 17060612 Screw 3/8-16 X .75 155272 Bumper Hood/Dash 168337X012 Dash P/L 72140608 Bolt Carriage 3/8-16 x 1 155927 Panel Dash Lh 145660 Clip Tinnerman 172107X010 Panel Dash Rh 17490608 Screw Thdrol 3/8 x 16 x 1/2 159639X428 Hood LT/PL...
Page 34
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC DRIVE...
Page 35
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC DRIVE PART DESCRIPTION - - - - - - Transaxle Hydro Gear 314-0510 (Order Parts From Transaxle Manufacturer) 165619 Rod Shift Hydro LT 76020416 Pin Cotter 1/8 x 1 CAD 10040400 Washer Lock Hvy Helical 74490544 Bolt, Hex FLGHD 5/16-18 Gr.
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC STEERING ASSEMBLY...
Page 37
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC STEERING ASSEMBLY PART DESCRIPTION 159944X428 Wheel Steering 172393 Axle Asm Cast Iron LT 169840 Spindle Asm LH 169839 Spindle Asm RH 6266H Bearing Race Thrust Harden 121748X Washer 25/32 X 1-5/8 X 16 Ga 12000029 Ring Klip #t5304-75 175121...
Page 38
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC SEAT ASSEMBLY PART DESCRIPTION 171683 Seat 140551 Bracket Pivot Seat 8 720 71110616 Bolt Fin Hex 3/8-16unc X 1 19131610 Washer 13/32 X 1 X 10 Ga 145006 Clip Push-In 73800600 Nut Hex w/Ins. 3/8-16 Unc 124181X Spring Seat Cprsn 2 250 Blk Zi 17000616...
Page 39
157140 Decal Fender Danger E/F WHEELS AND TIRES 4,10 PART 172743 160396 176307 145005 133671 138311 173587 173589 178112 178113 PART 59192 65139 170455 59904 106732X421 Rim Asm 6"front Service 278H 9040H 106108X421 Rim Asm 8"rear Service 170456 7152J 104757X428 Cap Axle Blk 1 50 X 1 00 144334 NOTE: All component dimensions given in U.S.
Page 40
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC ENGINE OPTIONAL EQUIPMENT Spark Arrester...
Page 41
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC ENGINE NOTE: All component dimensions given in U. S. inches 1 inch = 25.4 mm PART DESCRIPTION 170771 Control Throt 17720410 Screw Hex Thd Cut 1/4-20x5/8 T - - - - - - - - Engine B&S Model No.
Page 42
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC MOWER DECK 153 154 90 91...
Page 43
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC MOWER DECK PART DESCRIPTION 165892X421 Mower Deck Assembly, 42" 72140506 Bolt 138017 Bracket Asm Fr. Sway Bar 3/42 165460X421 Bracket Asm Deck 42" Sway Bar 4939M Retainer Spring 130832 Arm, Suspension, Rear 850857 Bolt 3/8-24 x 25 Gr.
Page 44
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC MOWER LIFT 17 18...
Page 45
REPAIR PARTS TRACTOR - - MODEL NUMBER PR20H42STC MOWER LIFT PART DESCRIPTION 159460 Wire Asm Inner/Sprg W/plunger LT 159471 Shaft Asm Lift RH w/Inf 105767X Pin Groove 1 500 Zinc 12000002 E Ring #5133-62 19211621 Washer 21/32 X 1 X 21 Ga 120183X Bearing Nylon Blk 629 Id 125631X...
The Manufacturer warrants to the original consumer purchaser that this product as manufactured is free from defects in materials and workmanship. For a period of two (2) years from date of purchase by the original consumer purchaser, we will repair or replace, at our option, without charge for parts or labor incurred in replacing parts, any part which we find to be defective due to materials or workmanship.
Page 47
SUGGESTED GUIDE FOR SIGHTING SLOPES FOR SAFE OPERATION SIGHTING GUIDE Operate your Tractor up and down the face of slopes (not greater than 15°), never across the face. Make turns gradu- ally to prevent tipping or loss of control. Exercise extreme caution when changing direction on slopes.
PARTS AND SERVICE Your POULAN PRO product has been expertly engineered and carefully manufactured to rigid quality standards. As with all mechanical products, some adjustments or part replacement may be necessary during the life of your unit. FOR SERVICE OR REPLACEMENT PARTS: 1.