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Husqvarna TC 138 M Troubleshooting
The
Husqvarna TC138M lawn tractor was manufactured from 2018 to 2022. The Husqvarna
TC 138 M tractor can be equipped with the following models of gasoline engines:
25 cubic inches (725 cc) Briggs and Stratton 21R707 Intek 4-cycle single
cylinder OHV vertical shaft air-cooled engine with a rated power of 10.5 Hp (7.8
kW), and 21.5 cubic inches (352 cc) Loncin LC1P85FA 4-cycle vertical-shaft
single cylinder air-cooled engine with a max power of 13 Hp (9.6 kW).
The tractor is fitted with a Peerless 206-578 gear transmission with 6
forward and 1 reverse gears. The maximum forward speed - 4.7 mph (7.5
km/h), maximum reverse speed - 1.4 mph (2.3 km/h). The Husqvarna TC 138
M is equipped with a manual steering system, pneumatic wheels, 15x6.00-6
front tires, and 18x8.50-8 rear tires.
The tractor is compatible with a 38" mid-mount 2-blade side discharge
mower deck with cutting height of 1.5-4.0 in (38-101 mm), manual blade
engagement, six cut positions, and mechanical lift system with hand
operated.
| Engine Troubleshooting |
| Engine won't start or hard to start |
| No gasoline in tank - Fill it up |
| Wrong grade of gasoline - Change gasoline |
| Air or water in fuel system - Remove water or air from fuel system |
| Defective spark plug wire connection - Inspect spark plug wiring connection, change or repair |
| Damaged spark plug - Change spark plug |
| Plugged fuel filter - Install new filter |
| Brake pedal not depressed - Press the brake pedal |
| Carburetor components worn out - Repair or replace parts |
| Engine has low compression - Check cylinder block and replace defective parts |
| Worn or improperly adjusted choke cable - Replace cable or adjust properly |
| Engine runs intermittently |
| Cooling fins are plugged - Need to wash or clean |
| Defective ignition system - Test ignition and replace failed parts |
| Faulty or stuck throttle cable - Service or replace the cable |
| Air filter is dirty - Change or clean air filter |
| Dirty or defective fuel pump - Check fuel pump and change if required |
| Engine starts and stalls immediately |
| Spark plug is faulty - Replace spark plug |
| Carburetor is defective or clogged - Clean or install new carburetor |
| Defective ignition coil - Ignition coil should be replaced |
| Valve springs are bad or broken - New valve springs need to be installed |
| Valves are stuck - Clean the valves |
| Engine oil level low - Fill up the engine oil |
| Excessive engine load - Reduce engine load |
| Air intake screen is plugged - Need to clean or wash |
| Too lean fuel mixture in carburetor - Set the carburetor properly |
| Bad ignition timing - Ignition timing needs to be adjusted correctly |
| Valve setting is wrong - Valves needs to be set correctly |
| Low octane fuel - Use proper gasoline |
| Excessive engine load - Reduce load |
| Engine oil level is low - Fill up the engine oil |
| Incorrect low idle setting - Adjustment required |
| Fuel pump is damaged or dirty - Clean or change fuel pump |
| Main bearings or crankshaft are worn out - Repair or replace defective parts |
| Incorrect valve clearance - Adjustment procedure required |
| Piston rings or cylinder bore are worn - Replace defective parts |
| Improperly or clogged carburetor - Adjust carburetor properly or service it |
| Air filter is blocked - Service or change air filter |
| Dirty or faulty fuel pump - Clean or replace fuel pump |
| Ignition system failure - Check ignition system and replace faulty parts |
| Defective cylinder head gasket - Replace the head gasket |
| Valves are burned or stuck - Replace or service valves |
| Push rod is bent or worn - Push rod should be replaced |
| Faulty cylinder block components - Replace defective components |
| Choke didn't open fully - Adjust or change choke cable |
| Carburetor main jet is improperly adjusted - Adjust main jet as required |
| Loose or faulty spark plug - Re-tighten or replace spark plug |
| Stuck, worn, or burned valves - Service or change valves |
| Sleeve, rings, or piston are damaged - Replace defective parts as required |
| Incorrect valve clearance - Check and adjust |
| Engine oil consumption is too high |
| Worn seals or gaskets - Replace worn parts to avoid leaks |
| Damaged valve guides or valve stems - Valves replacement required |
| Seized or wear piston rings - Change the piston rings as required |
| Scuffed piston or cylinder liner - Check liner and piston, change as required |
| Breather pipe or hose is blocked - Replace or clean |
| Transmission Troubleshooting |
| Hard to shift gears |
| Gear shift linkage is worn or rusty - Replace or lubricate the shift linkage |
| Worn or damaged shift forks - Shift forks need to be replaced |
| Worn gear shifting mechanism - Repair or change worn components if necessary |
| Fluid level is low - Check and refill the transmission fluid |
| Dirty transmission oil - The oil must be changed |
| Bearings are damaged or gears are worn - Change defective parts |
| Transmission pops out of gear |
| Improperly installed or damaged shifting lever - Replace or install shift lever correctly |
| Gear teeth are worn or damaged - Install new gears |
| Shift forks or shift rods are faulty - Replace damaged rods or forks |
| Drive shaft/belt is incorrectly adjusted or worn - Install a new shaft/belt or adjust it |
| Clutch/brake is improperly adjusted or worn - Adjust clutch/brake or install a new one |
| Drive sheave is worn or faulty - Install a new sheave |
| Mower Deck Troubleshooting |
| Mower vibrates too much |
| Worn or dirty mower drive pulley - Clean or replace pulley |
| Loose or defective drive belt - Belt needs to be adjusted or replaced |
| Warped or not balanced mower blades - Replace or balance blades |
| Blade mounting bolts are loose - Tighten bolts as required |
| Discharge chute regular clogging |
| Fast mowing speed - Select a lower speed |
| Grass is too long - Must be set to low cutting height |
| Low engine speeds - Adjust throttle to full opening |
| Mower cuts too low - Change cutting height adjustment |
| Mower drive belt installation is improper - Check drive belt for correct installation |
| Mower leaving random uncut of grass |
| Deck is plugged with grass - Check cutting deck and clean as necessary |
| Blades are not sharp - Blades need to be sharpened |
| Defective or worn blades - Install new blades |
| Fast ground speed - Select a lower speed |
| Cutting level is too low - Must be set to high cutting height |
| Full grass bag - Clean grass bag |
| Bumpy or unleveled lawn - Lawn needs to be leveled |
| Cutting level is too low - Must be set to high cutting height |
| High mowing speed - Operate at slower speed |
| Deck is not leveled correctly - Level the deck properly |
| Worn or bent blades - Change the blades |
| Incorrect tire pressure - Check and inflate the tires |
| Low tire pressure - Inflate tires correctly |
| Mower deck is not leveled properly - Deck should be adjusted correctly |
| Blades are excessively dull - Need a blade sharpening |
| Worn or bent blades - Install new blades |
| Deck is plugged with grass - Need to clean the mower deck |
| Broken mower deck housing - Rebuild or change mower deck |
| Loose or faulty mower spindle - Replace or repair the spindle |
| Electrical Troubleshooting |
| Battery does not charge |
| Corroded or loose cable connections - Tighten or clean electrical wiring connections |
| Defective battery terminal connectors - Terminal connectors need to be changed |
| Battery is defective - Battery replacement required |
| Battery voltage is low - Battery is drained, charge it |
| Battery drains quickly - Service charging system or change battery |
| Bad battery terminals or disconnected wiring - Connect wires correctly or change terminals |
| Battery is discharged or defective - Need to charge or replace the battery |
| Wiring is improperly connected or disconnected - Check wiring and connect properly |
| Battery capacity is low - Charge the battery |
| Spark plug gapped improperly or faulty - Replace or clean and gap |
| Damaged starter motor or solenoid - Repair starter or change solenoid |
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| Lawn and Garden Tractors Technical Specs |
