Cub Cadet 7360SS Service Manual

SERVICE MANUAL
SERIES 7000
COMPACT TRACTOR
Model Number
7360SS
CUB CADET • P.O. BOX 368023 • CLEVELAND, OHIO 44136-9723
INDEX
1. SAFETY 4
2. LOCATION OF ENGINE MODEL, ENGINE SERIAL NO. AND TRACTOR SERIAL NO. IDENTIFICATIONS 6
3. SPECIFICATION AND DATA 7
4. TRANSMISSION DIAGRAM 8
5. TIGHTENING TORQUES 9
6. PRECAUTIONS FOR DISASSEMBLY 10
7. GENERAL INFORMATION 11
2. ASSEMBLY REMOVAL AND REINSTALLATION 12
1. FRONT AXLE ASSY REMOVAL AND REINSTALLATION 13
1-1 FRONT AXLE ASSY REMO VAL 13 1-2 FRONT AXLE ASSY REINSTALLA TION 14
2. ENGINE ASSY REMOVAL AND REINSTALLATION 15
2-1 ENGINE ASSY REMOVAL 15 2-2 ENGINE ASSY REINSTALLA TION 19
3. CLUTCH HOUSING, TRANSMISSION CASE, REAR AXLE CASE AND HYDRAULIC LIFT CASE REMOVAL AND REINSTALLATION 21
3-1 HOUSING REMOVAL 21 3-2 HOUSING REINSTALLATION 23
4. ENGINE 25
4-1 DETERMINING WHEN TO OVERHAUL THE ENGINE 25 4-2 TROUBLE SHOOTING 28 4-3 DISASSEMBLING 34 4-4 REASSEMBLING 44 4-5 INSPECTION 79 4-6 ADJUSTMENT 100 4-7 SPECIAL TOOLS 107
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5. CLUTCH 108
5-1 DISASSEMBLING 108 5-2 REASSEMBLING 108 5-3 ADJUSTMENT 109
6. TRANSMISSION 111
6-1 CLUTCH HOUSING DISASSEMBLING 1 11 6-2 CENTER CASE DISASSEMBLING 11 3 6-3 TRANSMISSION CASE DISASSEMBLING 11 5 6-4 CLUTCH HOUSING REASSEMBLING 11 7 6-5 CENTER CASE REASSEMBLING 11 8 6-6 TRANSMISSION CASE REASSEMBLING 121 6-7 CHECK AND MAINTENANCE 123
7. REAR AXLE 126
7-1 DIFFERENTIAL CASE ASSY DISASSEMBLING 126 7-2 REAR AXLE DISASSEMBLING 126 7-3 BRAKE CONTROL DISASSEMBLING 127 7-4 DIFFERENTIAL CASE ASSY REASSEMBLING 128 7-5 REAR AXLE REASSEMBLING 129 7-6 BRAKE CONTROL REASSEMBLING 130 7-7 CHECK AND MAINTENANCE 131
8. FRONT AXLE 132
8-1 FRONT AXLE DISASSEMBLING 132 8-2 FRONT AXLE REASSEMBLING 135 8-3 FRONT AXLE CHECK AND MAINTENANCE 139
9. STEERING 141
9-1 OPERATOR CONTROL AREA DISASSEMBLING 141 9-2 STEERING UNIT DISASSEMBLING 142 9-3 HYDRAULIC CYLINDER DISASSEMBLING 144 9-4 OPERATOR CONTROL AREA REASSEMBLING 146 9-5 STEERING UNIT REASSEMBLING 147 9-6 HYDRAULIC CYLINDER REASSEMBLING 150 9-7 CHECK AND MAINTENANCE 152
10. HYDRAULICS 153
10-1 MAIN HYDRAULICS DISASSEMBLING 153 10-2 HYDRAULIC LIFT DISASSEMBLING 155 10-3 MAIN HYDRAULICS REASSEMBLING 158 10-4 HYDRAULIC LIFT REASSEMBLING 159 10-5 HYDRAULIC LINE CHECKING 164 10-6 HYDRAULIC CHECK AND MAINTENANCE 166
11. ELECTRICAL 167
11-1 ELECTRICAL DIAGRAM 168 11-2 SPECIFICA TION 170
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I. GENERAL
3
1. SAFETY
4
5
2. LOCATION OF ENGINE MODEL, ENGINE SERIAL NO. AND TRACTOR SERIAL NO. IDENTIFICATIONS
(1) ENGINE MODEL Engine model is relieved on right side of cylinder block . Enter this model and engine serial number (See next paragraph) for ordering parts.
(2) ENGINE SERIAL NO. Engine serial No. is punched on right side of engine block by the injection pump.
(3) TRACTOR SERIAL NO. Tractor Serial No. is punched on right side of transmission center case.
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3. SPECIFICATION AND DATA
Capacities
Engine oil capacity with filter change ———————————————— 4.5 liters 4.8 QTS
NOTE : Oil filter capacity is 0.5 liters (0.13 US Galls)
Cooling capacity ————————————————————————— 7.1 liters 7.9 QTS Transmission & Hydraulic oil———————————————————— 43 liters 45.9 QTS MFD Axle ———————————————————————————— 6.5 liters 6.9 QTS Fuel Tank ———————————————————————————— 35 liters 9.2 Gallons
NOTE : Use the capacities listed above only as a guide. Always use the dipstick or level plug to make
sure the units are filled to the correct level.
Fuel Specifications
A.P.I Gravity (Min) ————————————————————————— 34 Flash Point (Min) ————————————————————————— 60 C 140 F Cloud Point (Wax Appearance Point) (Max)—————————————— 21 C 5.8 F Pour Point (Max)————————————————————————— 26 C 14.8 F Distillation Temperature, 90% Point ————————————————282 to 338flC 539 to 640flF Viscosity at 38flC Centistokes ——————————————————————————— 2.0 to 4.3 Saybolt second Universal ————————————————————— 32 to 40 Cetane Number (Min) —————————————————— 43 (45 to 55 for winter or high altitude) Water and Sediment by Volume (Max) ———————————————— 0.05 of 1 % Sulfer, by weight (Max) —————————————————————— 0.50 of 1 % Copper Strip Corrosion (Max) ———————————————————— No. 2 Ash, by weight (Max) ——————————————————————— 0.01 of 1 % Fuel Filter Cup Service Interval ——————————————————— Every 10 Hours Fuel Filter Element Change ———————————————————— Replace yearly or as needed
Fuel injectors
Valve Leakage Rate ——— No Leakage Permissible, Slight Moistening of the Nozzle Tips is allowed
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4. POWER TRANSMISSION DIAGRAM
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5. TIGHTENING TORQUES
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6. PRECAUTIONS FOR DISASSEMBLY
Shaft movement
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Place snap ring that square side face to force
Slit
Shaft
Slit
movement
7. GENERAL INFORMATION
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II. ASSY REMO VAL AND REINSTALLATION
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1. FRONT AXLE ASSY REMOVAL AND REINSTALLATION
1-1 FRONT AXLE ASSY REMOVAL
(1) 4WD SHAFT REMOVAL
1. Remove cov er A
2. Remove the snap ring at joint (rear side) from the shaft groove.
3. Move the joint to front side and remove the 4WD shaft.
(2)STEERING HOSE REMOVAL
1.Remove the two hoses from steering cylinder
(3) BATTERY CODE DISCONNECTION
1. Disconnect Battery Code (Negative) and loosen fixing bolts of bracket.
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(4) FRONT & REAR HOLDER REMOVAL
1. Remove mounting bolts of front holder.
1-2 FRONT AXLE ASSY REINSTALLATION
*Install the front axle assy with reversed procedure of removal. Use following adjustment and service standards for the reinstallation.
1. When reinstall the front axle assy to chassis, tighten the mounting bolts of the rear holder first. Tightening Torque : 86.8~97.6lbf.ft (12 ~13.5 kgf-m)
2. Remove mounting bolts of rear holder.
(5) FRONT AXLE ASSY REMO VAL
1. Lift up the chassis by jack and remove the front axle assy from chassis.
2. Measure the clearance between front holder and chassis. Put the shims of which thickness is half of the measured clearance. Tighten the mounting bolts of Front Holder. Tightening Torque : 61.5~68.7lbf.ft (8.5~9.5 kgf-m)
3. When reinstall the hoses to the cylinder, install the hose with red tape to lower side of the port.
4. After install the hoses, turn the steering wheel to left and make sure the front axle is steered to left.
5. When reinstall the 4WD shaft, apply the
grease to the spline.
6. Make sure the snap ring is in the groove.
7. After reinstall the front axle assy, check the
toe-in and readjust it if necessary.
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2. ENGINE ASSY REMOVAL AND REINSTALLATION
2-1 ENGINE ASSY REMOVAL
(1) HARNESSES REMOVAL
1. Remove front grille, bonnet, side covers and panel cover.
2. Disconnect battery cable (Disconnect negative cable first and then disconnect positive cable.)
5. Disconnect the harnesses at oil pressure
sensor, fuel cut solenoid, electric fuel feed pump and fuel gauge.
3. Disconnect the harnesses at alternator and starter motor. Disconnect the tachometer cable.
4. Disconnect the harnesses at water temperature gauge, water temperature sensor and glow plug.
6. Disconnect the engine control wires (2 wires)
at governor side. Disconnect the engine control wire for foot accel pedal from step. Remove the power steering hoses (2 hoses) from steering cylinder.
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(2) PANEL REMOVAL
1. Disconnect the clutch rod and brake rods (Left and right brake rods).
(Lever side)
2. Disconnect the shuttle wire. (Transmission side)
3. Disassemble the operator seat area.
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4. Disconnect the connectors of harness B.
5. Remove the steering hoses from the flow divider and transmission case.
(Flow divider)
6. Remove the fixing bolts at column cover . Lift up the panel assy .
Column cover
(Transmission case)
Bolt
Bolts
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(3) ENGINE REMOVAL
1. Drain the coolant from radiator and drain the transmission oil.
2. Remove the 4WD Shaft. (See Page 13)
3. Remove the panel Assy. (See Page 17)
4. Remove the fuel hose at fuel filter and drain the fuel.
5. Remove the air cleaner hose, radiator hoses (2 hoses) and coolant drain hose from engine.
8. Remove the suction and pressure pipe from
pump I and II.
9. Put the jack under the transmission case to
support and remove the chassis mounting bolts.
6. Remove the fuel tank bracket and fuel tank.
7. Remove the muffler from engine
10. Pull the chassis together with front axle assy
to front and remove it from engine.
11. Lift the engine by hoist and remove the
engine mounting bolts between engine rear plate and clutch housing.
12. Remove the engine from clutch housing.
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2-2 ENGINE REINSTALLATION
*Install the engine with reversed procedure of removal Use following adjustment and service standards for the reinstallation.
1. When reinstall the engine to clutch housing,
apply the liquid packing (Threebond #1208D) to the mating surface of engine rear plate and clutch housing.
2. When installing the engine, make sure that
main shaft and clutch center is aligned
3. Tightening torque of engine mounting bolts
61.5~68.7 lbf.ft (8.5~9.5 kgf-m)
4. Tightening torque of chassis mounting bolts
68.7~83.2 lbf.ft (9.5~11.5 kgf-m)
5. Tightening torque of power steering hose at
transmission side.
36.2~43.4 lbf.ft (5~6 kgf-m)
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6. Shuttle wire installation.
1) Set the length of wire at transmission side to
5.8 in (147 mm).
2) Set the length of wire at shuttle lever side to 6.5in (164 mm). *Amount of screw into the ball joint must be
0.32 in (8 mm)
8. Clutch pedal free play
[0.787~1.181 in.]
9. After reinstall the harnesses and tachometer
cable, clamp them not to touch the muffler, manifold and fan belt.
3) After set of the wire lengths, adjust the wire length by nut to obtain the shuttle shift lever neutral position at lever guide. In the neutral position, shuttle shift lever can be move side to side.
7. Brake pedal adjustment (See page 127) Free play : 0.99~1.39in (25 ~35 mm) Adjust the left and right brake pedal height difference to be less than 0.12in (3 mm).
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3. CLUTCH HOUSING, TRANSMISSION CASE, REAR AXLE CASE AND HYDRAULIC LIFT CASE REMOVAL AND REINSTALLATION
3-1. HOUSINGS REMOVAL
(1) CLUTCH HOUSING REMOVAL
1. Remove the fixing bolts between clutch housing and center case.
2. Lift the clutch housing and remove it from center case.
2. Remove the main shift lever linkages.
3. Lift the center case and remove it from
transmission case.
(2) CENTER CASE REMOVAL
1. Remove the fixing bolts between center case and transmission case.
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(3) HYDRAULIC LIFT CASE REMOVAL
1. Remove the seat and seat bracket.
2. Remove the lever grip from position control lever and remove the lever guide by removing the fixing bolts.
3. Remove the top link bracket . Top link bracket
(8) REAR AXLE CASE REMOVAL
1. Remove the ROPS.
1) Remove hinge pin and position pin. Remove ROPS upper flame.
2) Remove fixing bolts of ROPS lower flame and remove ROPS lower flame.
4. Remove the fixing bolts of hydraulic lift case
and lift up the hydraulic lift case to remove.
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3) Remove mounting bolts of ROPS lower
bracket and remove the bracket.
2. Disconnect the brake rod at brake lever on
the rear axle case.
3-2. HOUSING REINSTALLATION
*Reinstall the housings with reverse procedure of the removal. Use following values as adjustment and service standard for the installation.
3. Lift the rear axle case and remove the
mounting bolts.
(1) Rear axle case reinstallation
1. Apply the liquid packing (Threebond #1280D) to the mating surface of the rear axle case and transmission case.
2. Tightening torque of rear axle case mounting bolts.
61.5~68.7lbf.ft (8.5 ~ 9.5 kgf-m)
(2) Hydraulic lift case reinstallation
1. Apply the liquid packing (Threebond #1280D) to the mating surface of the hydraulic lift case and transmission case.
2. Tighten the top link bracket mounting bolts before tightening the hydraulic lift case fixing bolts.
4. Remove the rear axle assy.
3. Tightening torque of hydraulic case fixing bolts.
61.5~68.7 lbf.ft (8.5 ~ 9.5 kgf-m)
4. Tightening torque of the top link bracket mounting bolts.
86.8~97.6 lbf.ft (12 ~ 13.5 kgf-m)
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5. In case of equipping the draft control and
disassembling the top link bracket, adjust the dimension of stopper bolt to 29 mm(1.14in) and lock it by jam nut.
(3) Center case reinstallation
1. Apply the liquid packing (Threebond #1208D)
to the mating surface of the center case and transmission case.
2. Tightening torque of center case fixing bolts.
86.8~97.6 lbf.ft (12 ~13.5 kgf-m)
(4) Clutch housing reinstallation
1. Apply the liquid packing (Threebond #1208D)
to the mating surface of the clutch housing and center case.
2. Tightening torque of the clutch housing fixing
bolts.
86.8~97.6 lbf.ft (12 ~13.5 kgf-m)
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4. ENGINE
4-1. DETERMINING WHEN TO OVERHAUL THE ENGINE
The trouble to be taken into account as the most valid reason for overhauling the engine is(4): in actually determining when to overhaul the engine, it is reasonable to take this trouble into account in conjunction with the other ones
(1)DETERMINING WHEN TO OVERHAUL THE ENGINE
Generally, when to overhaul the engine is to be determined by taking into account a drop in compression pressure as well as an increase in lube oil consumption and excessive blowby gases. Lower power or loss of pow er, an increase in fuel consumption, a drop in lube oil pressure, hard starting and excessive abnormal noise are also troubles. These troubles,however,are not always the result of low compression pressure and give no valid reason for overhauling the engine. the engine develops troubles of widely different varieties when the compression pressure drops in it. Following are the typical troubles caused by the compression pressure failure:
(1)Low power or loss of power (2)Increase in fuel consumption (3)Increase in lube oil consumption (4)Excessive blowby through breather due to worn cylinders, pistons, etc. (5)Excessive blowby due to poor seating of worn inlet and exhaust valves (6)Hard starting or failure to start (7)Excessive engine noise
In most cases, these troubles occur concurrently. Some of them are directly caused by low compression pressure, but others are not. Among the troubles listed above, (2)and(6) are caused by a fuel injection pump improperly adjusted with respect to injection quantity or injection timing, worn injection pump plungers, faulty injection nozzles, or poor care of the battery , starter and alternator.
(2) COMPRESSION PRESSURE MEASUREMENT
1. Inspection
-Check to make sure­(1)The crankcase oil level is correct, and the air cleaner, starter and battery are all in normal condition. (2)The engine is at the normal operating temperature.
2. Measurement
(1)Move the control lever to a position for shutting off fuel supply. (2)Remove all glow plugs from the engine. Install the compression gauge and adaptor (ST332270)combination to a cylinder on which the compression pressure is to be measured. (3)Turn the engine with the starter and read the gauge pressure at the instant the gauge pointer comes to stop. (4)If the gauge reading is below the limit, overhaul the engine.
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1. Be sure to measure the compression
pressure on all cylinder.
2. The compression pressure varies with
change of engine r.p.m.. This makes it necessary to check engine r.p.m.. at the time of measuring the compression pressure.
3. It is important to measure the compression
pressure at regular intervals to obtain the data on the gradual change of the compression pressure.
4. The compression pressure would be slightly
higher than the standard in a new or overhauled engine owing to breaking-in of the piston rings, valve seats, etc. It drops as the engine components wear down.
(3) BASIC PRECAUTION FOR DISASSEMBLY AND ASSEMBLY This section outlines basic precautions recommended by Mitsubishi that should always be observed.
1. Disassembly
(1)Always use tools that are in good condition and be sure you understand how to use them before performing any job. (2)Use an overhaul stand or a work bench, if necessary . Also, use bins to keep engine parts in order of removal. (3)Parts must be restored to their respective components from which they were removed at disassembly. This means that all parts must be set aside separately in groups,each marked for its component, so that the same combination or set can be reproduced at assembly. (4)Pay attention to marks on assemblies, components and parts for their positions or directions. Put on marks, if necessary,
(5)Carefully check each part or component for any sign of faulty condition during removal or cleaning. The part will tell you how it acted or what was abnormal about it more accurately during removal or cleaning. (6)When lifting or carrying a part too heavy or too awkward for one parson to handle, get another person’s help and, if neces­ sary, use a jack or a hoist.
2. Assembly
(1)Wash all parts, except for oil seals, O-rings, rubber sheets, etc., with cleaning solvent and dry them with pressure air. (2)Always use tools that are in good condi­ tion and be sure you understand how to use them before performing any job. (3)Use only good-quality lubricants. Be sure to apply a coat of oil, grease or sealant to parts as specified. (4)Be sure to use a torque wrench to tighten parts for which torques are specified. (5)Any time the engine is assembled, new gaskets and O-rings must be installed.
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(6)PREPARATION FOR DISASSEMBLY
1. Engine oil draining
Remove the drain plug from the bottom of the oil pan and allow the oil to drain.
Refil capacity ——— 1.19 gal (4.5 L)
Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin.
2. Coolant draining
Loosen the drain plug on the right side of the cylinder block and allow the coolant to drain.
Refill capacitiy ——— 6.6 gal (2.5 L)
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4-2. TROUBLE SHOOTING
Problem 1 : Fuel knock
More or less knock occurs in diesel engines. This may be caused either by an excessively large delay period or by a too fast rate of fuel injection. (1)Items to be checked for ahead
• Clogged air cleaner
• Poor quality fuel
(2)Inspection procedure
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Problem 2 : Overheating
(1) Items to be checked for ahead
Overheating might also be caused by abnormal operating conditions. If the engine is over­heating but its cooling system is not cont­ributing to this trouble, it is necessary to check the difference between the ambient temper­ature when the engine is in normal operation (with the thermostat fully open). If the ambient temperature is higher than the normal coolant temperature by more than 140 F(108 C), investigate other items than those related to the engine cooling system.
• Insufficient coolant and exterior coolant leaks
• Loose fan belt
• Radiator core openings plugged with dirt
(2)Inspection procedure
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