Cub Cadet 8404 Operator's Manual

Cub cadet compact tractor operator's manual 8000 series.
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Operator's Manual
MODEL 8404
CUB CADET LLC P.O. BOX 361131 CLEVELAND, OHIO 44136-0019 []
FORM NO. 769-00707


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   Summary of Contents for Cub Cadet 8404

  • Page 1


  • Page 2: Table Of Contents

    The dealer has trained service personnel familiar with the latest servicing information, is equipped with the latest tools, and has a complete line of genuine Cub Cadet service parts which assure proper fit and high quality.

  • Page 3: Recording Model And Serial Number Information

    RECORDING MODEL AND SERIAL NUMBER INFORMATION Product identification plates are provided for major components of your tractor. The numbers on these plates are important if your tractor should require dealer service, or if you need additional information on your tractor. Prior to using your tractor for the first time, record the numbers from the identification plates in the appropriate spaces provided below.

  • Page 4: Important Safe Operation Practices


  • Page 5

    • Never operate the machine while under the influence of alcohol or drugs, or while fatigued. • When working in cooperation with others, let them know in advance what you are doing. • Always sit in the tractor seat when starting the engine or operating controls.

  • Page 6

    • Never try to get on or off a moving tractor. • Never park the tractor on a steep incline. • Do not run the engine in an enclosed building without adequate ventilation. Exhaust fumes can cause death. • Pull only from the drawbar. Make certain the drawbar pin is locked in place.

  • Page 7

    • Always slow the tractor down before turning. Turning at high speed may tip the tractor over. • To avoid upsets, drive the tractor with care and at a safe speed. Use extra caution when operating over rough ground, when crossing ditches or slopes, and when turning corners.

  • Page 8: Operating The Pto

    4. OPERATING THE PTO • Disengage the PTO, stop the engine, and wait until all moving components have completely stopped before dismounting the tractor and connecting, disconnecting, adjusting, cleaning, or servicing any PTO driven equipment. • Do not wear loose fitting clothing when operating the PTO or when near rotating equipment.

  • Page 9

    • Engine components become operation and can cause a burn. Allow to cool down before touching. • Before "jump starting" a dead battery, read and follow all of the instructions. • Do not attempt to mount a tire on the rim. This should be done by a qualified person with proper equipment.

  • Page 10: Safety Labels

    SAFETY LABELS 1. DD-T2325-50512 2. DD-T2325-50743 3. DD-T2325-50724 4. DD-T2241-50702...

  • Page 11

    SAFETY LABELS (Cont.) 5. DD-T4625-52361 7. DD-T4625-53191 6. DD-T4625-52351...

  • Page 12: Section 1: Controls And Features

    SECTION 1: CONTROLS AND FEATURES SWITCHES AND DASH MOUNTED CONTROLS A. Ignition Switch NOTE: To prevent accidental starting and/or battery discharge, remove the key from the ignition switch when the tractor is not in use. The ignition switch has four positions turning clockwise as follows (Refer to Figure 2): OFF - The engine and electrical system is turned off.

  • Page 13

    B. Light Switch Turn the light switch one click clockwise to illuminate the low beam headlights and the taillights. Turn the light switch one more click clockwise to illuminate the high beam headlights. See Figure 3. High Beam Beam TURN SIGNAL SWITCH Figure 3 C.

  • Page 14

    To set the parking brake proceed as follows: • Lock the right and left brake pedals together using the brake lock. Refer to Brake Lock in Floorboard and Fender Mounted Controls later in this section. • Fully depress and hold the brake pedals. •...

  • Page 15

    If the light remains on, stop the engine immediately and inspect for the cause or contact your Cub Cadet dealer. 10. Battery Charge Warning Lamp - Illuminates when the ignition switch is turned on and should go off as the engine starts.

  • Page 16

    FLOOR BOARD AND FENDER MOUNTED CONTROLS A. Clutch Pedal When the clutch pedal is fully depressed, the tractor’s drive clutch is disengaged. Fully and rapidly depress the clutch pedal before shifting the main shift lever, the Hi-Lo Range lever, or the forward/reverse shift lever.

  • Page 17

    C. Foot Throttle The foot throttle is interlocked with the hand throttle. Depressing the foot throttle increases the engine speed. Full engine speed control can be obtained with the foot throttle if the hand throttle is in the full rearward (slow) position. The foot throttle may also be used to temporarily increase the engine speed above the hand throttle setting.

  • Page 18

    Differential Lock Pedal Located at the rear of the right floor board, the differ- ential lock is used to gain additional traction when operating the tractor on wet or loose soil. When the pedal is depressed the rear wheels of the tractor are prevented from rotating independently of one another.

  • Page 19

    Seat Adjustment Lever The seat adjustment lever is located beneath the left side of the seat. This lever is used to adjust the seat forward or backward to the desired operating position. See Figure 19. SEAT ADJUSTMENT LEVER Figure 19 PTO Safety Switch Located on the right fender.

  • Page 20: Section 2: Operation

    Use ONLY the tractor drawbar for pulling. • In the event of an accident, have the ROPS carefully inspected and, if necessary, replaced by your Cub Cadet dealer. Do not attempt to repair the ROPS. PRE-STARTING CHECKS Perform the following checks every day before start- ing and operating the tractor.

  • Page 21

    • Tighten the fuel cap securely, and immediately wipe up any spilled fuel. • To minimize condensation, keep the fuel tank as full as possible without filling to capacity. It is a good practice to fill the fuel tank at the end of the day to reduce overnight condensation.

  • Page 22

    IMPORTANT: The engine oil pressure and battery charge lights should turn off. If they do not, stop the engine immediately and check for the cause or contact your Cub Cadet dealer. STOPPING THE ENGINE • Reduce the engine speed to idle using the hand throttle lever and apply even foot pressure on both brake pedals.

  • Page 23

    • Fully depress the clutch pedal and proceed as follows: - Shift the Forward/Reverse Shift Lever to desired direction. See Figure 27. Forward Reverse Figure 27 - Shift the Main Shift Lever to desired gear speed. See Figure 28. - Shift the Hi-Lo Range Shift Lever to desired range.

  • Page 24

    • If leaving the tractor, turn the ignition key to the OFF position and remove the key. • If parking on an incline, chock the wheels to prevent accidental rolling of the tractor. TURNING THE TRACTOR WARNING: Turning the tractor while traveling at a fast speed may cause the tractor to overturn.

  • Page 25

    Check the engine oil level. • If the oil level within the operating range, contact your Cub Cadet dealer. NOTE: If the engine is left running at idle speed for a prolonged period, the oil pressure lamp may light. This does not indicate a problem with the engine, but this situation should be avoided.

  • Page 26

    USING THE DIFFERENTIAL LOCK Depressing the differential lock pedal engages a mechanism in the transmission that locks the differential. This prevents the rear wheels from rotating independently of each other and provides constant power to both rear wheels when additional traction is needed.

  • Page 27

    Contact your Cub Cadet dealer. USING THE MID PTO Use the Mid PTO to power implements, such as a mower deck, that are connected to the mid PTO shaft.

  • Page 28

    USING THE THREE POINT HITCH WARNING: Always disengage the PTO, stop the engine, and set the parking brake before dismounting the tractor to connect, disconnect, or adjust three point hitch mounted implements. Never stand between the rear wheels and the implement when attaching and adjusting the implement.

  • Page 29

    40% of the machine weight is on the front wheels. If necessary, contact your Cub Cadet dealer for help in determining how much weight is needed for your particular application.

  • Page 30: Section 3: Adjustments

    SECTION 3: ADJUSTMENTS ADJUSTING THE SEAT For the comfort of the operator, a single lever adjustable seat is provided to set the fore to aft position of the seat. Adjust the seat to the most comfortable position that allows you to operate all controls and pedals.

  • Page 31

    • Tighten the adjusting bolt as necessary to remove the play from the front axle, then retighten the jam nut. • Lower the front of the tractor to the ground. ADJUSTING THE FAN BELT TENSION If the fan belt becomes loose, the engine may overheat and/or the battery may not charge.

  • Page 32

    ADJUSTING THE MICRO SWITCH HEIGHT The PTO micro switch, located inside the right fender adjacent the position control lever, is initially set so that the PTO will disengage when the 3-point hitch lower links are raised to prescribed height. Lift Arm Lower Link Figure 46 If your application requires the PTO to run with the...

  • Page 33

    • Raise and support the rear of the tractor. • Adjust the tread widths as shown by changing the mounting relationship of the wheel disc to the rim mounting brackets and/or the relationship of the dish of the wheel disc to the axle. See Figure Rim Mtg.

  • Page 34: Lubrication Table

    Distilled Water 50% : Antifreeze 50% Description Cub Cadet 737-3039 (1Qt.) Alternate Oils Shown Below Shell — Donax-TD Donax-TM Mobil — Mobil Fluid 423 Exxon — Torque Fluid 56 SAE80 or SAE90 Gear Oil Use Cub Cadet 251H EP Grease...

  • Page 35: Lubrication And Maintenance Chart

    LUBRICATION AND MAINTENANCE CHART Operation to be Performed Check Engine Oil Level Check and Clean Air Cleaner Check Engine Coolant Level Check Transmission Oil Level Check and Clean Radiator Screen Check Oil Level of Front Axle and Final Drive Gear Cases Check and Clean Fuel Filter Change Engine Oil and Replace Oil Filter...

  • Page 36

    WARNING: Use care when servicing any component in the engine area. If the engine has recently been operated, components will be hot and could cause burns. Allow the engine to cool before servicing. WARNING: Before servicing the engine, place the tractor on a level surface, stop the engine, engage the parking brake, and remove the key from the ignition switch.

  • Page 37

    • Use No. 2 diesel fuel. Use No. 1 diesel fuel if the temperature is below 15° F (-10°C). • The fuel tank capacity is approximately 10.6 gal. Do not overfill. Bleeding the Fuel System WARNING: Do not bleed the fuel system when the engine is hot.

  • Page 38

    • Stop the engine before checking the fuel line hoses and clamps. • Check that the fuel line hose clamps are snugly securing the hoses to their respective fittings. Replace any damaged clamps. • Check the fuel hoses for wear or deterioration, and any damaged hoses should be replace immediately.

  • Page 39

    Changing Engine Oil and Filter The engine oil and oil filter (located on the right/front of the engine) should be changed after the first 50 hours of operation, then at 100 hours and every 100 hours thereafter. Refer to the LUBRICATION TABLE for the quantity and type of oil needed.

  • Page 40

    TRANSMISSION OIL AND OIL FILTER Checking the Transmission Oil Level Check the hydro transmission/hydraulic system oil level before each use. Check the oil level only while the engine is stopped and the tractor is standing on a level surface. • Locate the transmission dipstick on the top/rear of the transmission at the back of the tractor.

  • Page 41

    • Move the drain pan beneath the filter, then remove the filter by turning it counterclockwise using a filter wrench to loosen. See Figure 62. Transmission Oil Filter (DD-T4620-38031) Figure 62 • Use a clean rag to clean the metal surface of the filter base where the filter gasket makes contact.

  • Page 42

    SERVICING THE AIR CLEANER Check the air cleaner dust cup and element before each use. Clean the dust out of the cup and blow off the element weekly. Replace the element after every 100 hours of operation. NOTE: The air cleaner uses a dry element, never apply oil.

  • Page 43

    SERVICING THE COOLING SYSTEM Before each use, the engine coolant level in the overflow reservoir should be checked to ensure it is within the operating range. Engine coolant absorbs heat from the engine and transfers the heat to the air flowing through the radiator.

  • Page 44

    Radiator Drain Cock LUBRICATING THE TRACTOR After every 50 hours of operation apply Cub Cadet 251HEP grease (or equivalent) to all lube fittings. Wipe away all old grease and dirt from the lube fittings to prevent foreign materials from entering as the new grease is applied.

  • Page 45

    • Steering cylinders (inner and outer - both sides). See Figure 71. • Top of front axle final drive (each side). See Figure 71. Final Drive Lube Fitting Steering Cylinder LH Outer Lube Fitting Figure 71 • Brake pedal shaft (both sides). See Figure 72. Brake Pedal Shaft Lube Fitting Figure 72...

  • Page 46

    SERVICING THE BATTERY General Battery Information WARNING: • Battery posts, terminals and related accessories contain lead and lead compounds. Wash hands after handling. • Battery acid must be handled with great care, as contact with it can burn and blister the skin. It is advisable to wear protective clothing (goggles, rubber gloves and apron) when working with acid.

  • Page 47

    • Maintain the battery electrolyte level in each cell. Keep each cell filled to the bottom of the ring in each vent hole. Fill with distilled water if necessary. See Figure 76. Deficient Correct Ring Battery Electrolyte Level Figure 76 Re-charging the Battery •...

  • Page 48

    • If a fuse continually fails, have the electrical harnesses check by your Cub Cadet dealer or a qualified electrician. See Figure 79. Main Slow Blow Fuse • Locate the slow blow fuse in the wire harness behind the left side panel. See Figure 80.

  • Page 49

    TRACTOR STORAGE If the tractor will not be operated for two or three months or longer, perform the following measures before storing. • Repair or replace worn or broken parts and tighten all fasteners. • Change the engine oil and run the engine about five minutes to circulate oil throughout the engine block.

  • Page 50: Section 5: Troubleshooting

    SECTION 5: TROUBLESHOOTING ENGINE TROUBLESHOOTING When Engine is Difficult To Start Cause Fuel is thick and doesn’t flow Air or water mixed in fuel system Thick carbon deposits on orifice of injection nozzle Valve clearance is wrong Leaking valves Fuel injection timing is wrong Engine oil becomes thick in cold weather and engine cranks slowly.

  • Page 51

    Valve out of adjustment Air cleaner is dirty Fuel injection pressure is wrong Injection pump wear When Color of Exhaust Is Especially Bad See your Cub Cadet dealer. Cause Fuel governing device is bad Fuel is of extremely poor quality Nozzle is bad...

  • Page 52

    When Engine Suddenly Stops Cause Fuel Leakage Bad Nozzle Moving parts are overheated due to shortage of lubricating oil or improper lubrication IMPORTANT: When the engine has suddenly stopped, allow the engine to decompress; then try to turn the engine over by lightly pulling on the fan belt. If the engine turns easily without any abnormal resistance, the cause of the trouble is usually lack of fuel or a bad nozzle.

  • Page 53

    BATTERY TROUBLESHOOTING Condition of Battery Starter does not function - Key is not "ON". - Battery is over-used until light becomes dim. - Defective alternator or rectifier preventing charging of the battery. - Dirty or corroded terminal contacts. - Bad brushes, armature or field in alternator.

  • Page 54: Section 6: Specifications

    Hydraulic lift control system Pump capacity system Three point hitch Maximum lifting capacity (at hitch lift point) Model 8404 Indirect injection, water cooled, 4-cycle diesel 121.9 cu. in (1,999 cc) Pressurized radiator, forced circulation with water pump Front Rear Hydrostatic steering system...

  • Page 55: Specifications

    Forward Speed (@2700 rpm Reverse w/Std. tires) Tires Industrial Model 8404 SAE 1-3/8 in., 6 splines Mid PTO Rear PTO Low range 1.1 - 3.4 mph (1.8 - 5.5 kph) High range 4.8 - 15.0 mph (7.7 - 24.3 kph) Low range 1.0 - 3.2 mph (1.6 - 5.1 kph)

  • Page 56: Warranty

    This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state. Cub Cadet LLC reserves the right to make changes in the design and other changes in its products at any time without notice and without incurring any obligation to product previously manufactured or purchased.

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