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OPERATOR'S MANUAL
Model
53AA1A3G401
IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY
Warning:
This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest-
covered, brush-covered or grass-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 be maintained in effective working order by the operator.
In the State of California the above is required by law (Section 4442 of the California Public Resources Code). Other states may have
similar laws. Federal laws apply on federal lands. A spark arrester for the muffler is available through your nearest engine authorized
service dealer or contact the service department, P.O. Box 368022 Cleveland, Ohio 44136-9722.
MTD PRODUCTS INC. P.O. BOX 368022 CLEVELAND, OHIO 44136-9722
770-10326A.fm
PRINTED IN U.S.A.
FORM NO.
(4/00)
ECO No. 952
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Related Manuals for Yard-Man 53AA1A3G401
Summary of Contents for Yard-Man 53AA1A3G401
- Page 1 OPERATOR’S MANUAL Model 53AA1A3G401 IMPORTANT: READ SAFETY RULES AND INSTRUCTIONS CAREFULLY Warning: This unit is equipped with an internal combustion engine and should not be used on or near any unimproved forest- covered, brush-covered or grass-covered land unless the engine’s exhaust system is equipped with a spark arrester meeting applicable local or state laws (if any).
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Page 2: Table Of Contents
Content Maintaining Safety ... 3 Slope Gauge... 6 Know Your Z-Series... 7 Operating Your Z-Series ... 10 Making Adjustments ... 12 Maintaining Your Z-Series ... 14 Maintaining Mower Deck... 18 Troubleshooting ... 21 Parts List... 22 This Operator’s Manual is an important part of your new Z-Series. It will help you assemble, prepare and maintain the unit for best performance. -
Page 3: Maintaining Safety
SECTION 1: MAINTAINING SAFETY WARNING: This symbol points out important safety instructions which, if not followed, could endanger the personal safety and/or property of yourself and others. Read and follow all instructions in this manual before attempting to operate this machine. Failure to comply with these instructions may result in personal injury. -
Page 4: Slope Operation
SLOPE OPERATION 1. Slopes are a major factor related to loss of control and tip-over accidents which can result in severe injury or death. All slopes require extra caution. If you cannot back up the slope or if you feel uneasy on it, do not mow it. - Page 5 14. After striking a foreign object, stop the engine, remove the wire from the spark plug and thoroughly inspect the mower for any damage. Repair the damage before restarting and operating the mower. 15. Grass catcher components are subject to wear, damage and deterioration, which could expose moving parts or allow objects to be thrown.
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Page 6: Slope Gauge
SECTION 2: SLOPE GAUGE Use this page as a guide to determine slopes where you may not operate safely. Do not operate your lawn mower on such slopes. -
Page 7: Know Your Z-Series
SECTION 3: KNOW YOUR Z-SERIES NOTE: Reference to right or left hand side of the mower is observed from the operating position. WARNING: Be familiar with all controls and their proper operation. Know how to stop the machine and disengage them quickly. -
Page 8: Lift Handle
Electric PTO (Power Take-Off) Switch The PTO switch is located on the right control panel and it is used to control the engagement of the cutting blades. When the knob is up, the cutting blades are engaged. When the knob is down, the cutting blades are disengaged. -
Page 9: Parking Brake Pedal
Fuel Engine Oil Figure 6 Brake Pedal and Parking Brake Pedal The brake pedal is located on the lower left side of the control tower and it is used to engage the brake in order to slow down or stop the unit. It also is used to engage the parking brake. -
Page 10: Operating Your Z-Series
The speed control bar also aids the drive handles in making “perfect U-turns”. To move forward grasp both drive handles and the speed control bar at the same time, then release the left drive handle to turn left and SECTION 4: OPERATING YOUR Z-SERIES WARNING: Read, understand, and follow all instructions and warnings on the machine and in this manual before... -
Page 11: Driving On Slopes
NOTE: The Z-Series speed is based on the position of the drive handles. Push the handles forward to increase speed and back toward neutral for slower speeds. Driving On Slopes Before operating the Z-Series on any slope: • Use the SLOPE GAUGE to determine if the slope is safe for operation. -
Page 12: Making Adjustments
Release Handles = Neutral / Stop Full Right Forward And Full Left Back = Zero Turn Left Right Forward And Left Neutral = Left Turn SECTION 5: MAKING ADJUSTMENTS Adjusting the Mower Deck Height • To push or pull the lift lever, depress and hold the button. -
Page 13: Steering Adjustment
Checking the Brake Adjustment • Position the Z-Series on a level surface and move the throttle lever to the slowest position (turtle). • Stop the engine, remove the key from the ignition, and engage the parking brake. • Release both hydraulic relief levers. •... -
Page 14: Maintaining Your Z-Series
• Remove bolts that secure linkage to upper control handles and lower control arms. The shock absorbers should remain connected to linkage. See Figure 12. Hex Bolt Jam Nuts Hex Bolt Figure 12 • Insert quarter inch by seven inch pin or equivalent through the top and bottom alignment holes of the control arms to secure arms at positive neutral. -
Page 15: Fuel Tank
Deck Lift Pivot Grease Fittings Lift Handle Grease Fitting Control Tower Grease Fittings Engine Refer to the separate engine manual for engine maintenance instructions. Service air cleaner every 25 hours under normal conditions. Clean every few hours under extremely dusty conditions. To service the air cleaner, refer to the separate engine manual. - Page 16 • Flip seat up and clean the area around the hydraulic oil dipstick to prevent debris from entering the crankcase. See Figure 15. • Remove the hydraulic fill plug/dipstick and read the level: If hydraulic oil level is inside operating range, then do nothing.
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Page 17: Removing The Drive Belt
Headlight Mounting Bracket Connector Light Bulb Figure 17 Changing The Fuse • The fuse can be located on a wiring harness in a protective cover between the engine and the battery. • Remove the old fuse and replace with same rated fuse. -
Page 18: Maintaining Mower Deck
SECTION 7: MAINTAINING MOWER DECK Checking The Level Of The Mower Deck Side to Side • Position the Z-Series on a hard and level surface and place the PTO switch in the OFF position. • Engage the parking brake and turn the ignition switch to the OFF position and remove key. -
Page 19: Removing The Mower Deck
Removing The Mower Deck WARNING: Do not remove deck immedi- ately after operating the tractor. Allow the engine and other moving parts ample time to cool down. • Position the Z-Series on a hard flat surface and engage the parking brake. •... -
Page 20: Mower Blades
To Clutch Pulley Figure 26 Installing The Mower Deck • Slide the mower deck under the Z-Series, making sure belt covers are removed. • From the rear, reach under the muffler cover and grasp the belt from the mower deck and bring it between the hydraulic units. -
Page 21: Troubleshooting
SECTION 8: TROUBLESHOOTING Trouble Possible Cause(s) Engine fails to start PTO switch engaged. Brake pedal not engaged. Spark plug wire disconnected. Throttle control lever not in correct starting position. Fuel tank empty, or stale fuel. Blocked fuel line. Faulty spark plug. Engine flooded. -
Page 22: Parts List
Model 53AA1A3G401... - Page 23 Model 53AA1A3G401 REF. PART DESCRIPTION 731-3326 Engine Cover 731-3263 Control Handle 710-0451 Carriage Bolt 5/16-18 x .750 735-0251 Foot Pad 731-3185 Bellow 712-0431 Flange Lock Nut 3/8-16 703-2807B Mounting Bracket 710-3168 Carriage Bolt 3/8-16 749-3081 Cruise Control Handle 731-3128A Lens 710-0642 Hex Washer Screw 1/4-20 x .750...
- Page 24 Model 53AA1A3G401 13 14...
- Page 25 Model 53AA1A3G401 REF. PART DESCRIPTION 603-0649 Parking Brake Shift Ass’y 714-3004 Cotter Pin 710-3178 Carriage Bolt 3/8-16 x .75 741-0324 Hex Flange Bearing .506 ID x .590 703-3400 Brake Mounting Bracket 747-3404 Connecting Brake Rod 714-0104 Cotter Pin 710-0134 Carriage Screw 1/4-20 x .62...
- Page 26 Model 53AA1A3G401...
- Page 27 Model 53AA1A3G401 REF. PART 603-0340 Bellcrank Ass’y Upper LH 603-0341 Bellcrank Ass’y Upper RH 603-0342 Bellcrank Ass’y Lower LH 603-0343 Bellcrank Ass’y Lower RH 603-0647 Support Ass’y Tower 603-0410 Rod Ass’y Control RH 603-0411 Rod Ass’y Control LH 710-0216 Hex Cap Screw 3/8-16 x .75 710-3005 Hex Cap Screw 3/8-16 x 1.25...
- Page 28 Model 53AA1A3G401...
- Page 29 Model 53AA1A3G401 REF. PART DESCRIPTION 737-3069 Pipe Plug 737-3070A Pipe Dipstick 603-0639 Hydraulic Tank Assembly 727-3116 Connection Fitting 721-0223 Seal 738-0940 Drain Plug 727-3120 Inlet Tube LH 727-3155 Tee Fitting 727-3154 Outlet Hose RH 727-3121 Inlet Tube RH 727-3153 Outlet Hose LH 710-0216 Hex Cap Screw 3/8-16 x .75...
- Page 30 Model 53AA1A3G401 REF. PART DESCRIPTION 618-3110A Drive Ass’y Complete 712-3004A Hex Flange Lock Nut 5/16-18 715-0136 Spiral Pin 3/16 x 1.25 717-3396 Spur Gear 14T 717-3455 Hydro Transmission 718-3053 Parking Brake Lever 721-0343 O-Ring 2.0 Dia. 727-3125 Cap Nut 3/8...
- Page 31 Model 53AA1A3G401 REF. PART DESCRIPTION 618-3110A Drive Ass’y Complete 611-3012 Axle Assembly 710-0852 Ribbed Neck Stud 618-3106 Carrier Assembly, Output 618-3107 Gear Assembly, 51T Internal & 20T 618-3109 Housing Ass’y 710-1342 Hex Washer Screw 1/4-20 x 1-1/8 711-1048 Brake Shaft...
- Page 32 Model 53AA1A3G401 To Starter...
- Page 33 Model 53AA1A3G401 REF. PART 710-1314 Socket Screw 5/16-18 x .625 736-0119 Lock Washer 5/16 721-0208 Gasket 751-0619 Exhaust Pipe 710-0642 Hex Washer Screw 1/4-20 x .750 710-3178 Carriage Bolt 3/8-16 x .75 751B213146 Casing Clamp 710-1237 Hex Washer screw #10-32 x .625...
- Page 34 Model 53AA1A3G401...
- Page 35 Model 53AA1A3G401 REF. PART DESCRIPTION 629-3033 Main Wire Harness - Not Shown 723-0455 Foam Protector 710-3013 Hex Cap Screw 1/4-20 x .50 703-2809 Indicator Mounting Bracket 726-0349 Ratchet Retainer 725-1718 Relay 712-3027 Hex Flange Nut 1/4-20 710-0134 Carriage Screw 1/4-20 x .62...
- Page 36 Model 53AA1A3G401...
- Page 37 Model 53AA1A3G401 REF. PART DESCRIPTION 757-3014 Seat 731-3154 Seat Slide 712-3004A Flange Lock Nut 5/16-18 732-3098 Spring Index 720-0190 Height Adjustment Knob 603-0294 Seat Base Bracket Assembly 712-3005 Flange Lock Nut 3/8-16 732-3080 Spring Compression 738-0372 Shoulder Spacer 710-1260A Hex Washer Screw 5/16-18 x .750...
- Page 38 Model 53AA1A3G401...
- Page 39 Model 53AA1A3G401 REF. PART DESCRIPTION 711-0642A Handle Button 731-3158 Handle Deck Lift Grip 732-3097 Compression Spring 747-3405 Front Lift Rod 738-0507B Shoulder Screw .500 Dia x .434 710-0216 Hex Cap Screw 3/8-16 x .75 603-0422 Shaft Mounting Bracket - LH 603-0370 Pivot Link Bearing Ass’y...
- Page 40 Model 53AA1A3G401 REF. PART 712-3075 Hex Lock Nut, 1.0-14 736-0274 Flat Washer 603-0389A Pin Ass’y, Pivot 737-3090 Adapter, 1/8 NPTF x 1/8 NPTF 737-3072 Grease Fitting, 65° w/Extension 712-0431 Hex Flange Lock Nut, 3/8-16 712-0229 Push Nut, 3/8 ID 710-3178 Carriage Bolt, 3/8-16 x .75...
- Page 41 Model 53AA1A3G401 REF. PART DESCRIPTION 712-0455 Retaining Nut 3/8-16 603-0720B Frame Assembly 712-0251 Retaining Nut 3/8-16 710-0216 Hex Cap Screw 3/8-16 x .75 712-0431 Lock Nut 3/8-16 710-3144 Hex Cap Screw 3/8-16 x 2.0 749-3061 Lower Bumper Tube 712-3004 Lock Nut 5/16-18...
- Page 42 Model 53AA1A3G401...
- Page 43 Model 53AA1A3G401 REF. PART DESCRIPTION 732-0556 Spring Extension .94 OD x 7.57 LG 712-3006 Hex Nut 1/4-20 710-0597 Hex Cap Screw 1/4-20 x 1.0 703-2559 Stop Bracket 703-2945 Pulley Shield LH 703-3237 Pulley Shield RH 712-3004A Flange Lock Nut 5/16-18...
- Page 44 Model 53AA1A3G401 REF. PART DESCRIPTION 751-3124B Fuel Cap 751-3143 Fuel Tank 736-0227 Flat Washer.390 ID x 1.5 OD 736-0169 Lock Washer 3/8 703-2783 Fuel Tank Mounting Bracket 710-0870 Hex Washer Screw 3/8-16 x .625 710-1260A Hex Washer Screw 5/16-18 x .75...
- Page 45 NOTES...
- Page 48 MANUFACTURER’S LIMITED WARRANTY FOR: The limited warranty set forth below is given by MTD PRODUCTS INC (“MTD”) with respect to new merchandise purchased and used in the United States, its possessions and territories. MTD warrants this product against defects in material and workmanship for a period of two (2) years commencing on the date of original purchase and will, at its option, repair or replace, free of charge, any part found to be defective in...