Kohler Courage SV710 Manuel utilisateur
Service Manual
SV710-SV740
SV810-SV840
2 Safety
3 Maintenance
5 Specications
13 Tools and Aids
16 Troubleshooting
20 Air Cleaner/Intake
21 Fuel System
28 Governor System
29 Lubrication System
31 Electrical System
43 Starter System
49 Emission Compliant Systems
52 Disassembly/Inspection and Service
64 Reassembly
132 690 01 Rev. D KohlerEngines.com
IMPORTANT: Read all safety precautions and instructions carefully before operating equipment. Refer to operating
instruction of equipment that this engine powers.
Ensure engine is stopped and level before performing any maintenance or service.
2
Safety
SAFETY PRECAUTIONS
WARNING: A hazard that could result in death, serious injury, or substantial property damage.
CAUTION: A hazard that could result in minor personal injury or property damage.
NOTE: is used to notify people of important installation, operation, or maintenance information.
WARNING
Explosive Fuel can cause
res and severe burns.
Do not ll fuel tank while
engine is hot or running.
Gasoline is extremely ammable
and its vapors can explode if
ignited. Store gasoline only in
approved containers, in well
ventilated, unoccupied buildings,
away from sparks or ames.
Spilled fuel could ignite if it comes
in contact with hot parts or sparks
from ignition. Never use gasoline
as a cleaning agent.
WARNING
Rotating Parts can cause
severe injury.
Stay away while engine
is in operation.
Keep hands, feet, hair, and
clothing away from all moving
parts to prevent injury. Never
operate engine with covers,
shrouds, or guards removed.
WARNING
Carbon Monoxide can
cause severe nausea,
fainting or death.
Avoid inhaling exhaust
fumes.
Engine exhaust gases contain
poisonous carbon monoxide.
Carbon monoxide is odorless,
colorless, and can cause death if
inhaled.
WARNING
Accidental Starts can
cause severe injury or
death.
Disconnect and ground
spark plug lead(s) before
servicing.
Before working on engine or
equipment, disable engine as
follows: 1) Disconnect spark plug
lead(s). 2) Disconnect negative (–)
battery cable from battery.
WARNING
Hot Parts can cause
severe burns.
Do not touch engine
while operating or just
after stopping.
Never operate engine with heat
shields or guards removed.
WARNING
Cleaning Solvents can
cause severe injury or
death.
Use only in well
ventilated areas away
from ignition sources.
Carburetor cleaners and solvents
are extremely ammable. Follow
cleaner manufacturer’s warnings
and instructions on its proper and
safe use. Never use gasoline as a
cleaning agent.
CAUTION
Electrical Shock can
cause injury.
Do not touch wires while
engine is running.
CAUTION
Damaging Crankshaft
and Flywheel can cause
personal injury.
Using improper procedures can
lead to broken fragments. Broken
fragments could be thrown from
engine. Always observe and use
precautions and procedures when
installing ywheel.
KohlerEngines.com 32 690 01 Rev. D
3
Maintenance
32 690 01 Rev. D KohlerEngines.com
MAINTENANCE INSTRUCTIONS
WARNING
Before working on engine or equipment, disable engine as
follows: 1) Disconnect spark plug lead(s). 2) Disconnect
negative (–) battery cable from battery.
Accidental Starts can cause severe injury or
death.
Disconnect and ground spark plug lead(s)
before servicing.
Normal maintenance, replacement or repair of emission control devices and systems may be performed by any repair
establishment or individual; however, warranty repairs must be performed by a Kohler authorized dealer.
MAINTENANCE SCHEDULE
Every 25 Hours¹
● Service/replace precleaner. Air Cleaner/Intake
● Replace air cleaner element (if not equipped with precleaner). Air Cleaner/Intake
Every 100 Hours¹
● Replace air cleaner element (if equipped with precleaner). Air Cleaner/Intake
● Change oil and lter. Lubrication System
● Remove cooling shrouds and clean cooling areas. Air Cleaner/Intake
Every 100 Hours
● Check that all fasteners are in place and components are properly secured. Reassembly
● Replace fuel lter.
Every 200 Hours²
● Have valve lash checked/adjusted. Reassembly
Every 500 Hours
● Replace spark plugs and set gap. Electrical System
¹ Perform these procedures more frequently under severe, dusty, dirty conditions.
² Have a Kohler authorized dealer perform this service.
REPAIRS/SERVICE PARTS
Kohler genuine service parts can be purchased from Kohler authorized dealers. To nd a local Kohler authorized
dealer visit KohlerEngines.com or call 1-800-544-2444 (U.S. and Canada).
4
Maintenance
KohlerEngines.com 32 690 01 Rev. D
OIL RECOMMENDATIONS
We recommend use of Kohler oils for best performance.
Other high-quality detergent oils (including synthetic)
of API (American Petroleum Institute) service class SJ
or higher are acceptable. Select viscosity based on
air temperature at time of operation as shown in table
below.
FUEL RECOMMENDATIONS
WARNING
Explosive Fuel can cause res and severe
burns.
Do not ll fuel tank while engine is hot or
running.
Gasoline is extremely ammable and its vapors can
explode if ignited. Store gasoline only in approved
containers, in well ventilated, unoccupied buildings,
away from sparks or ames. Spilled fuel could ignite
if it comes in contact with hot parts or sparks from
ignition. Never use gasoline as a cleaning agent.
NOTE: E15, E20 and E85 are NOT approved and
should NOT be used; effects of old, stale or
contaminated fuel are not warrantable.
Fuel must meet these requirements:
● Clean, fresh, unleaded gasoline.
● Octane rating of 87 (R+M)/2 or higher.
● Research Octane Number (RON) 90 octane minimum.
● Gasoline up to 10% ethyl alcohol, 90% unleaded is
acceptable.
● Methyl Tertiary Butyl Ether (MTBE) and unleaded
gasoline blend (max 15% MTBE by volume) are
approved.
● Do not add oil to gasoline.
● Do not overll fuel tank.
● Do not use gasoline older than 30 days.
STORAGE
If engine will be out of service for 2 months or more
follow procedure below.
1. Add Kohler PRO Series fuel treatment or equivalent
to fuel tank. Run engine 2-3 minutes to get stabilized
fuel into fuel system (failures due to untreated fuel
are not warrantable).
2. Change oil while engine is still warm from operation.
Remove spark plug(s) and pour about 1 oz. of
engine oil into cylinder(s). Replace spark plug(s) and
crank engine slowly to distribute oil.
3. Disconnect negative (-) battery cable.
4. Store engine in a clean, dry place.
5
Specications
32 690 01 Rev. D KohlerEngines.com
Dimensions in millimeters.
Inch equivalents shown in [ ].
Engine Dimensions
6
Specications
KohlerEngines.com 32 690 01 Rev. D
Dimensions in millimeters.
Inch equivalents shown in [ ].
Engine Dimensions
7
Specications
32 690 01 Rev. D KohlerEngines.com
GENERAL SPECIFICATIONS3.6 SV710
SV810
SV715 SV720
SV820
SV725 SV730
SV830
SV735 SV740
SV840
Bore 83 mm (3.27 in.)
Stroke 67 mm (2.64 in.)
Displacement 725 cc (44 cu. in.)
Oil Capacity (rell) 1.6-1.8 L (1.7-1.9 qt.)
Maximum Angle of Operation (@ full oil level)425°
TORQUE SPECIFICATIONS3,5 SV710
SV810
SV715 SV720
SV820
SV725 SV730
SV830
SV735 SV740
SV840
Blower Housing and Sheet Metal
M4 HI-LO Screw 2.8 N·m (25 in. lb.)
M5 Fasteners 6.2 N·m (55 in. lb.) into new hole
4.0 N·m (35 in. lb.) into used hole
M6 Fasteners 10.7 N·m (95 in. lb.) into new hole
7.3 N·m (65 in. lb.) into used hole
Carburetor
Mounting Nut 6.2-7.3 N·m (55-65 in. lb.)
Connecting Rod
Cap Fastener (torque in increments) 11.3 N·m (100 in. lb.)
Crankcase
Breather Assembly
Inner Cover Fastener
Outer Cover Stud
Outer Cover Hex Nut
10.7 N·m (95 in. lb.) into new hole
7.3 N·m (65 in. lb.) into used hole
6.2 N·m (55 in. lb.) into new hole
4.0 N·m (35 in. lb.) into used hole
1.3 N·m (11.5 in. lb.)
Oil Drain Plug 13.6 N·m (10 ft. lb.)
ENGINE IDENTIFICATION NUMBERS
Kohler engine identication numbers (model, specication and serial) should be referenced for efcient repair,
ordering correct parts, and engine replacement.
Model .....................SV710
Courage Engine
Vertical Shaft
Numerical Designation
Specication . . . . . . . . . . . . . . . SV710-0001
Serial .....................3923500328
Year Manufactured Code Factory Code
Code Year
39 2009
40 2010
41 2011
3 Values are in Metric units. Values in parentheses are English equivalents.
4 Exceeding maximum angle of operation may cause engine damage from insufcient lubrication.
5 Lubricate threads with engine oil prior to assembly.
6 Any and all horsepower (hp) references by Kohler are Certied Power Ratings and per SAE J1940 & J1995 hp
standards. Details on Certied Power Ratings can be found at KohlerEngines.com.
8
Specications
KohlerEngines.com 32 690 01 Rev. D
TORQUE SPECIFICATIONS3,5 SV710
SV810
SV715 SV720
SV820
SV725 SV730
SV830
SV735 SV740
SV840
Cylinder Head
Head Bolt Fastener (torque in 2 increments) rst to 22.6 N·m (200 in. lb.)
nally to 41.8 N·m (370 in. lb.)
Rocker Arm Screw 11.3 N·m (100 in. lb.)
Rocker Arm Stud (AVT) 11.3 N·m (100 in. lb.)
Rocker Arm/Valve Adjustment Jam Nut 7.3 N·m (65 in. lb.)
Rocker Arm/Valve Adjustment Setscrew (AVT) 7.9 N·m (70 in. lb.)
Flywheel
Retaining Screw 74.5 N·m (55 ft. lb.)
Fuel Pump
Screw 2.3 N·m (20 in. lb.)
Governor
Lever Nut 6.8 N·m (60 in. lb.)
Ignition
Spark Plug 27 N·m (20 ft. lb.)
Module Fastener 4.0-6.2 N·m (35-55 in. lb.)
Rectier-Regulator Fastener 4.0 N·m (35 in. lb.)
Intake Manifold
Mounting Fastener (torque in 2 increments) rst to 7.4 N·m (66 in. lb.)
nally to 9.9 N·m (88 in. lb.)
Mufer
M8 Hex Nuts 24.4 N·m (216 in. lb.)
5/16-18 Capscrew 16.9 N·m (150 in. lb.)
Bracket Screw 9.9 N·m (88 in. lb.)
Oil Filter
Nipple 33.9 N·m (300 in. lb.)
Oil Pan
Fastener 24.4 N·m (216 in. lb.)
Oil Sentry™
Pressure Switch 4.5 N·m (40 in. lb.)
Solenoid (Starter)
Mounting Hardware 4.0-6.0 N·m (35-53 in. lb.)
Nut, Positive (+) Brush Lead 8.0-11.0 N·m (71-97 in. lb.)
Speed Control Bracket
Fastener 10.7 N·m (95 in. lb.) into new holes
7.3 N·m (65 in. lb.) into used holes
3 Values are in Metric units. Values in parentheses are English equivalents.
5 Lubricate threads with engine oil prior to assembly.
9
Specications
32 690 01 Rev. D KohlerEngines.com
TORQUE SPECIFICATIONS3,5 SV710
SV810
SV715 SV720
SV820
SV725 SV730
SV830
SV735 SV740
SV840
Starter Assembly
Thru Bolt
Inertia Drive
Solenoid Shift
4.5-5.7 N·m (40-50 in. lb.)
5.6-9.0 N·m (49-79 in. lb.)
Mounting Screw 15.3 N·m (135 in. lb.)
Brush Holder Mounting Screw 2.5-3.3 N·m (22-29 in. lb.)
Stator
Mounting Screw 6.2 N·m (55 in. lb.)
Valve Cover
Fastener 6.2 N·m (55 in. lb.)
CLEARANCE SPECIFICATIONS3SV710
SV810
SV715 SV720
SV820
SV725 SV730
SV830
SV735 SV740
SV840
Camshaft
End Play (with shim) 0.076/0.127 mm (0.0030/0.0050 in.)
Running Clearance 0.025/0.063 mm (0.0010/0.0025 in.)
Bore I.D.
New
Max. Wear Limit
20.000/20.025 mm (0.7874/0.7884 in.)
20.038 mm (0.7889 in.)
Bearing Surface O.D.
New
Max. Wear Limit
19.962/19.975 mm (0.7859/0.7864 in.)
19.959 mm (0.7858 in.)
Connecting Rod
Connecting Rod-to-Crankpin Running Clearance
New
Max. Wear Limit
0.030/0.055 mm (0.0012/0.0022 in.)
0.070 mm (0.0028 in.)
Connecting Rod-to-Crankpin Side Clearance 0.26/0.63 mm (0.0102/0.0248 in.)
Connecting Rod-to-Piston Pin Running Clearance 0.015/0.028 mm (0.0006/0.0011 in.)
Piston Pin End I.D.
New
Max. Wear Limit
17.015/17.023 mm (0.6699/0.6702 in.)
17.036 mm (0.6707 in.)
Crankcase
Governor Cross Shaft Bore I.D.
New
Max. Wear Limit
8.025/8.075 mm (0.3159/0.3179 in.)
8.088 mm (0.3184 in.)
3 Values are in Metric units. Values in parentheses are English equivalents.
10
Specications
KohlerEngines.com 32 690 01 Rev. D
CLEARANCE SPECIFICATIONS3SV710
SV810
SV715 SV720
SV820
SV725 SV730
SV830
SV735 SV740
SV840
Crankshaft
End Play (free) 0.070/0.590 mm (0.0028/0.0230 in.)
Bore (in crankcase)
New
Max. Wear Limit
40.965/41.003 mm (1.6128/1.6143 in.)
41.016 mm (1.6148 in.)
Bore (in oil pan)
New 40.974/40.987 mm (1.6131/1.6136 in.)
Crankshaft Bore (in oil pan)-to-Crankshaft Running
Clearance
New
0.039/0.074 mm (0.0015/0.0029 in.)
Flywheel End Main Bearing Journal
O.D. - New
O.D. - Max. Wear Limit
Max. Taper
Max. Out-of-Round
40.913/40.935 mm (1.6107/1.6116 in.)
40.84 mm (1.608 in.)
0.022 mm (0.0009 in.)
0.025 mm (0.0010 in.)
Oil Pan End Main Bearing Journal
O.D. - New
O.D. - Max. Wear Limit
Max. Taper
Max. Out-of-Round
40.913/40.935 mm (1.6107/1.6116 in.)
40.84 mm (1.608 in.)
0.022 mm (0.0009 in.)
0.025 mm (0.0010 in.)
Connecting Rod Journal
O.D. - New
O.D. - Max. Wear Limit
Max. Taper
Max. Out-of-Round
35.955/35.973 mm (1.4156/1.4163 in.)
35.94 mm (1.415 in.)
0.018 mm (0.0007 in.)
0.025 mm (0.0010 in.)
T.I.R.
PTO End, Crank in Engine
Entire Crank, in V-Blocks
0.279 mm (0.0110 in.)
0.10 mm (0.0039 in.)
Cylinder Bore
Bore I.D.
New
Max. Wear Limit
Max. Out-of-Round
Max. Taper
83.031/83.006 mm (3.2689/3.2679 in.)
83.069 mm (3.2704 in.)
0.12 mm (0.0047 in.)
0.05 mm (0.0020 in.)
Cylinder Head
Max. Out-of-Flatness 0.076 mm (0.003 in.)
Governor
Governor Cross Shaft-to-Crankcase Running Clearance 0.025/0.126 mm (0.0009/0.0049 in.)
Cross Shaft O.D.
New
Max. Wear Limit
7.949/8.000 mm (0.3129/0.3149 in.)
7.936 mm (0.3124 in.)
Governor Gear Shaft-to-Governor Running Clearance 0.015/0.140 mm (0.0006/0.0055 in.)
Gear Shaft O.D.
New
Max. Wear Limit
5.990/6.000 mm (0.2358/0.2362 in.)
5.977 mm (0.2353 in.)
3 Values are in Metric units. Values in parentheses are English equivalents.
7 Measure 6 mm (0.236 in.) above bottom of piston skirt at right angles to piston pin.
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2
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