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Tecumseh Products OVH180 Operator Manual

Tecumseh Products OVH180 Manual

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Tecumseh Products OVH180 | Operator Manual - Page 1
OV490EA (OHV140-180) Four-Cycle Engine • Vertical Crankshaft • Air-Cooled Table of Contents IMPORTANT NOTICE! Safety Definitions ii I. General Safety Precautions 1 II. How to Get Service 3 III. Oil and Fuel Specifications 4 IV. Before Starting Your Engine 4 V. Starting Your Engine 6 VI.
Tecumseh Products OVH180 | Operator Manual - Page 2
and (TWC) Three-way Catalyst (if so equipped). TecumsehPower Contact Information For engine adjustments, repairs or warranty service NOT covered in this manual, contact your nearest Authorized TecumsehPower Servicing Dealer. Find them on our website at www.TecumsehPower.com or call TecumsehPower
Tecumseh Products OVH180 | Operator Manual - Page 3
are highly flammable and can explode. Fuel vapors can spread and be ignited by a spark or flame many feet away from engine. To prevent injury or death from fuel fires, follow these instructions: • NEVER store engine with fuel in fuel tank inside a building with potential sources of ignition such as
Tecumseh Products OVH180 | Operator Manual - Page 4
• Keep the disconnected spark plug wire securely away from metal parts where arcing could occur. • Carefully attach the spark plug wire to the grounding post, if provided. • Disconnect battery at negative terminal first, if engine is equipped with a DC electric starter. • Turn all engine switches to
Tecumseh Products OVH180 | Operator Manual - Page 5
should be clearly understood and practiced when servicing TecumsehPower engines. • Order as part #695244A or #740043 for OV models. TecumsehPower Company manufactures and is responsible only for the engine used on this power equipment. If repair or service is needed for anything other than the
Tecumseh Products OVH180 | Operator Manual - Page 6
. NOTE Damage and/or performance problems that occur from use of fuels other than those listed in the Operator's Manuals will not be considered warranty. IV. Before Starting Your Engine A. Checking Oil Level To avoid engine damage, it is important to: • Check oil level before each use and every
Tecumseh Products OVH180 | Operator Manual - Page 7
spillage. Avoid creating any source of ignition until fuel vapors are gone. 4 5 3 2 1 1. Spark Plug 2. Spark Plug Cap 3. Spark Plug Wire 4. Air Intake Screen 5. Oil Fill Plug and Dipstick 6. Oil Filter (Optional) 7. Carburetor 76 Figure 7. Engine with Oil Fill Dipstick 181-887-14 Four-Cycle
Tecumseh Products OVH180 | Operator Manual - Page 8
or troubleshoot this engine in any other way. For example: • DO NOT use starting fluid. • DO NOT spray flammable vapors into carburetor or onto air cleaner. • DO NOT put flammable liquids into carburetor or onto air cleaner. • DO NOT operate engine or pull on starter rope with spark plug removed
Tecumseh Products OVH180 | Operator Manual - Page 9
3. Push starter button or turn ignition switch key (see equipment manufacturer's instructions) to start engine. Choke engine. 8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine
Tecumseh Products OVH180 | Operator Manual - Page 10
and pull the starter rope again. 7. If engine does NOT start after following steps 1 thru 6, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way. Page 8 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled 181-887-14
Tecumseh Products OVH180 | Operator Manual - Page 11
Figure 18. Engine Mounted Choke Lever 8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way. 181-887-14 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled Page 9
Tecumseh Products OVH180 | Operator Manual - Page 12
See Figure 20. Afterward, continue reading instructions below. 9. Wipe away any spilled oil. 10. Carefully disconnect spark plug wire from grounding post, if provided. 11. Connect spark plug wire to spark plug before attempting to start engine. NOTES The oil filter if so equipped, should be changed
Tecumseh Products OVH180 | Operator Manual - Page 13
II. Servicing Paper Filters" instructions on page 12. Afterward, continue reading instructions below. 4. Replace air cleaner cover and filters. C. Spark Plug Check spark plug yearly or every 100 operating hours. 1. Clean area around spark plug. 2. Remove and inspect spark plug. 3. Replace spark plug
Tecumseh Products OVH180 | Operator Manual - Page 14
engine without complete air cleaner installed on engine. Your air cleaner periodically needs to be cleaned or replaced. NOTES ALWAYS inspect filter(s) for discoloration or dirt accumulation. If either is present, see "I. Servicing Foam Pre-Filter" and/or "II. Servicing Paper Filters" instructions
Tecumseh Products OVH180 | Operator Manual - Page 15
-Term/Seasonal Storage I. Clean Engine Before servicing the engine remove the air cleaner cover and/or blower housing. Remove grass clippings, dirt and debris from the following areas: • Cooling Fins • Air Intake Screen • Levers • Linkage • Guards • Carburetor • Head Removing debris will insure
Tecumseh Products OVH180 | Operator Manual - Page 16
death or serious injury. 3. Begin servicing the cylinder bore. See "II. Oil Cylinder Bore" instructions on page 15. NOTE If you operate the engine during all four seasons, it is NOT necessary to lubricate the cylinder bore. Page 14 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled 181-887-14
Tecumseh Products OVH180 | Operator Manual - Page 17
spark plug. 7. Carefully disconnect spark plug wire from grounding post, if provided. 8. Connect spark plug wire to spark plug before attempting to start engine. See Figures 25 and 26. III. Oil Change oil if NOT changed within the last 3 months. See "A. Checking and Changing Oil" instructions
Tecumseh Products OVH180 | Operator Manual - Page 18
and Oil Filter Every 100 Hours or Seasonally Check Spark Plug Every 100 Hours or Seasonally Replace Spark Plug Every 200 Hours or Seasonally Scheduled Maintenance After First 2 Hours When Engine is Warm 1. Change Oil Date Owner/Dealer Page 16 Four-Cycle Engine • Vertical Crankshaft • Air
Tecumseh Products OVH180 | Operator Manual - Page 19
Hours or Before Each Use 1. Check Oil Level 2. Clean Cooling Fins Date Dealer Date Owner/Dealer Every 25 Hours or 3 Months 1. Clean Foam Pre-Filter Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date -14 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled Page 17
Tecumseh Products OVH180 | Operator Manual - Page 20
Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Every 100 Hours or Seasonally 1. Replace Paper Filter 2. Replace Oil Filter 3. Check Spark Plug Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner/Dealer Date Owner
Tecumseh Products OVH180 | Operator Manual - Page 21
NOTES 181-887-14 Four-Cycle Engine • Vertical Crankshaft • Air-Cooled Page 19
Tecumseh Products OVH180 | Operator Manual - Page 22
on your small off-road engine for the periods of time listed below, provided there has been no abuse, neglect, unapproved modification, or improper maintenance of your small off-road engine. Your emission control system may include parts such as the carburetor, air cleaner assembly, ignition system
Tecumseh Products OVH180 | Operator Manual - Page 23
-on or modified part. EMISSION-RELATED PARTS INCLUDE THE FOLLOWING: 1. Carburetor Assembly including internal components: a) Carburetor gaskets b) Intake pipe 2. Air Cleaner Assembly including components: a) Air filter element 3. Ignition System including components: a) Spark plug b) Ignition module
Tecumseh Products OVH180 | Operator Manual - Page 24
, improper maintenance, improper use or abuse of the product, or failure to follow the instructions contained in an Instruction Manual for the operation of the new TecumsehPower engine or part. The cost of normal maintenance or replacement of service items which are not defective shall be paid for

Section	Page
OV490EA (OHV140-180)	1
Four-Cycle Engine . Vertical Crankshaft . Air-Cooled	1
181-887-14	1
(English) 6/01/08	1
IMPORTANT NOTICE!	2
Safety Definitions	2
Notice Regarding Emissions	2
I. General Safety Precautions	3
A. Avoid Carbon Monoxide Poisoning	3
B. Avoid Gasoline Fires	3
C. Adult Supervision of Operation, Refueling and Maintenance	3
D. Stay Away from Rotating Parts	3
E. DO NOT Modify Engine	4
F. Avoid Burns and Fire from Hot Surfaces	4
G. Avoid Accidental Starts	4
H. Use Hearing Protection	4
Figure 1. Typical Flywheel Guard Location	4
Figure 2. Typical Spark Plug Connection	4
Figure 3. Disconnecting/Connecting Spark Plug	4
II. How to Get Service	5
A. Engine Identification Decal	5
B. Technician’s Handbook	5
ENGINE MODEL:	5
SPEC:	5
DOM:	5
Figure 4. Engine Identification Decal	5
Figure 5. Technician’s Handbook	5
III. Oil and Fuel Specifications	6
A. Oil	6
B. Fuel	6
IV. Before Starting Your Engine	6
A. Checking Oil Level	6
Table 1. Recommended Oil	6
Table 2. Recommended Fuel	6
Ethanol	6
10%	6
Grain Alcohol (“Gasohol”)	6
10%	6
MTBE (Methyl Tertiary Butyl Ether)	6
15%	6
ETBE (Ethyl Tertiary Butyl Ether)	6
15%	6
Figure 6. Engine Oil Level	6
B. Filling Oil Sump	7
1. Be sure engine is upright and level.	7
2. Unscrew oil fill cap from oil filler tube and wipe dipstick clean. See Figure 7.	7
3. Screw oil fill cap back into oil filler tube. Tighten securely.	7
4. Unscrew and remove oil fill cap from oil filler tube. Note oil level. If oil reading on dipstick is below “ADD” mark, slowly add oil to reach “FULL” level. See Figure 6 on page 4. Afterward, continue reading instructions below.	7
5. Screw oil fill cap back into oil filler tube. Tighten securely.	7
6. Wipe away any spilled oil.	7
C. Filling Fuel Tank	7
1. Stop engine and allow it to cool before refueling.	7
2. Be sure engine is outdoors and in a well-ventilated area.	7
3. Clean area around fuel fill cap and remove fuel fill cap.	7
4. Using an approved red GASOLINE container, add fuel slowly, being careful to avoid spilling. DO NOT overfill fuel tank. Leave space in the tank to allow fuel to expand without overflowing.	7
5. Replace fuel fill cap securely and wipe up spilled fuel before starting engine. If fuel is spilled DO NOT start engine. Move machine away from area of spillage. Avoid creating any source of ignition until fuel vapors are gone.	7
1. Spark Plug	7
2. Spark Plug Cap	7
3. Spark Plug Wire	7
4. Air Intake Screen	7
5. Oil Fill Plug and Dipstick	7
6. Oil Filter (Optional)	7
7. Carburetor	7
Figure 7. Engine with Oil Fill Dipstick	7
V. Starting Your Engine	8
A. Engines with Electric Starters	8
I. Combined Speed and Choke Control	8
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	8
2. Move combined control to “CHOKE” or “START” position (see equipment manufacturer’s instructions). See Figures 8 and 9.	8
3. Push starter button or turn ignition switch key (see equipment manufacturer’s instructions) to start engine.	8
4. When engine starts:	8
a. Release starter button or ignition switch key.	8
b. Next, move combined control to “FAST” position.	8
c. Finally, move combined control to desired speed in “RUN” range.	8
Figure 8. Combined Speed and Choke Control	8
Figure 9. Typical Engine Symbols	8
Table 3. Engines with Electric Starters	8
Combined	8
Speed and Choke Control	8
Section A.I	8
Independent	8
Speed and Choke Controls	8
Section A.II	8
a. Momentarily move combined control back to “CHOKE” position.	8
b. Next, move combined control to “FAST” position.	8
c. Finally, move combined control to desired speed in “RUN” range.	8
5. If engine fires but does NOT continue to run, move combined control lever to “FAST” position and then start engine.	8
6. If engine fails to start after 3 attempts with combined control in “FAST” position, move combined control to “CHOKE” position and push button or turn key to start engine again.	8
7. If engine does NOT start after following steps 1 thru 6, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.	8
II. Independent Speed and Choke Controls	9
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	9
2. Move independent speed control to “FAST” position and set independent choke control to “FULL CHOKE” position (see equipment manufacturer’s instructions). See Figures 9 thru 11.	9
3. Push starter button or turn ignition switch key (see equipment manufacturer’s instructions) to start engine.	9
4. When engine starts:	9
a. Release starter button or ignition switch key.	9
b. Next, move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	9
c. Next, move independent choke control to “NO CHOKE” position.	9
5. Finally, move independent speed control to desired speed in “RUN” range.	9
a. Momentarily move independent choke control back to “FULL CHOKE” position.	9
b. Next, move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	9
c. Finally, move independent choke control to “NO CHOKE” position.	9
6. If engine fires but does NOT continue to run, move independent choke control lever to “NO CHOKE” position and start engine.	9
7. If engine fails to start after 3 attempts in the “NO CHOKE” position, move independent choke control to “FULL CHOKE” position and start engine.	9
8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way	9
Figure 10. Independent Speed and Choke Controls	9
1. “NO CHOKE” Position	9
2. “1/2 CHOKE” Position	9
3. “FULL CHOKE” Position	9
Figure 11. Choke Control Positions	9
1. “NO CHOKE” Position	9
2. “1/2 CHOKE” Position	9
3. “FULL CHOKE” Position	9
Figure 12. Engine Mounted Choke Lever	9
B. Engines with Recoil Starters	10
Table 4. Engines with Recoil Starters	10
Combined	10
Speed and Choke Control	10
Section B.I	10
Independent	10
Speed and Choke Controls	10
Section B.II	10
I. Combined Speed and Choke Control	10
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	10
2. Move combined control to “CHOKE” or “START” position, if present (see equipment manufacturer’s instructions). See Figures 13 and 14.	10
3. Grasp starter cord handle. See Figure 15.	10
a. Pull rope out slowly until you feel drag.	10
b. Without allowing the rope to retract, continue pulling rope with one rapid full arm stroke.	10
c. Return rope slowly to original position.	10
4. When engine starts:	10
a. Move combined control to “FAST” position.	10
b. Next, move combined control to desired speed in “RUN” range.	10
a. Momentarily move combined control back to “CHOKE” position	10
b. Next, move combined control to “FAST” position.	10
c. Finally, move combined control to desired speed in “RUN” range.	10
Figure 13. Combined Speed and Choke Control	10
Figure 14. Typical Engine Symbols	10
Figure 15. Recoil Starter	10
5. If engine fires but does NOT continue to run, move combined control lever to “FAST” position and pull the starter rope.	10
6. If engine fails to start after 3 attempts with combined control in the “FAST” position, move combined control to “FULL CHOKE” position and pull the starter rope again.	10
7. If engine does NOT start after following steps 1 thru 6, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.	10
II. Independent Speed and Choke Controls	11
1. To avoid carbon monoxide poisoning, be sure engine is outdoors in a well-ventilated area.	11
2. Move independent speed control to “FAST” position and set independent choke control to “FULL CHOKE” position (see equipment manufacturer’s instructions). See Figures 14, 16, and 17.	11
3. Grasp starter cord handle. See Figure 15.	11
a. Pull rope out slowly until you feel drag.	11
b. Without allowing the rope to retract, continue pulling rope with one rapid full arm stroke.	11
c. Return rope slowly to original position.	11
4. When engine starts:	11
a. Move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	11
b. Next, move independent choke control to “NO CHOKE” position.	11
5. Finally, move independent speed control to desired speed in “RUN” range.	11
a. Momentarily move independent choke control back to “FULL CHOKE” position.	11
b. Next, move independent choke control to “1/2 CHOKE” position until engine runs smoothly.	11
c. Finally, move independent choke control to “NO CHOKE “position.	11
6. If engine fires but does NOT continue to run, move independent choke control to “NO CHOKE” position and pull starter rope again.	11
7. If engine fails to start after 3 attempts in the “NO CHOKE” position, move independent choke control to “FULL CHOKE” position and pull starter rope again.	11
Figure 16. Independent Speed and Choke Controls	11
1. “NO CHOKE” Position	11
2. “1/2 CHOKE” Position	11
3. “FULL CHOKE” Position	11
Figure 17. Choke Control Positions	11
1. “NO CHOKE” Position	11
2. “1/2 CHOKE” Position	11
3. “FULL CHOKE” Position	11
Figure 18. Engine Mounted Choke Lever	11
8. If engine does NOT start after following steps 1 thru 7, contact your Authorized TecumsehPower Servicing Dealer. DO NOT attempt to start or troubleshoot this engine in any other way.	11
VI. Stopping Your Engine and Short-Term Storage	12
VII. Maintenance	12
A. Checking and Changing Oil	12
1. Be sure you find the correct drain plug location, if present. (See equipment manufacturer’s instructions). See Figure 19.	12
2. Carefully disconnect spark plug wire and keep it away from spark plug. See \	12
3. Be sure the fuel fill cap is on and is tightened securely.	12
4. Clean area around oil drain plug. See Figure 19.	12
Figure 19. Oil Drain Plug Location	12
Figure 20. Oil Filler Locations	12
5. Place approved recyclable oil container under oil drain plug. (See equipment manufacturer’s instructions).	12
6. Remove oil drain plug and drain oil into an approved container. See Figure 19.	12
7. Install oil drain plug and tighten securely.	12
8. Fill with recommended oil. See \	12
9. Wipe away any spilled oil.	12
10. Carefully disconnect spark plug wire from grounding post, if provided.	12
11. Connect spark plug wire to spark plug before attempting to start engine.	12
B. Removing Debris from Engine	13
1. Remove air cleaner cover and filters. See Figure 21.	13
2. Remove debris from air inlet, air cleaner cover and air intake screen.	13
3. Inspect filter(s) for discoloration or dirt accumulation. If either is present, see \	13
4. Replace air cleaner cover and filters.	13
C. Spark Plug	13
1. Clean area around spark plug.	13
2. Remove and inspect spark plug.	13
3. Replace spark plug if porcelain is cracked or if electrodes are:	13
4. Check electrode gap with wire feeler gauge and set gap to-.030 in. (0.76 mm) if necessary. See Figure 23.	13
5. Install spark plug and tighten securely.	13
1. Cooling Fins	13
2. Levers and Linkage	13
3. Air Inlet	13
4. Air Cleaner Cover	13
5. Air Intake Screen	13
Figure 21. Debris Locations	13
Figure 22. Linkage and Lever Bending	13
1. .030 in. (0.76 mm) Gap	13
2. Electrodes	13
3. Porcelain	13
Figure 23. Spark Plug	13
D. Cleaning/Replacing Air Cleaner	14
I. Servicing Foam Pre-Filter	14
1. Wash in warm water and detergent solution then press (DO NOT twist) until all dirt is removed.	14
2. Rinse thoroughly until water is clear.	14
3. Wrap in a clean cloth and press (DO NOT twist) until completely dry.	14
4. Replace foam pre-filter onto paper filter.	14
II. Servicing Paper Filters	14
III. Filter Removal/Installation	14
1. Remove wing nuts from air cleaner cover. See Figure 24.	14
2. Remove air cleaner cover while lifting upward then outward.	14
3. Remove fasteners.	14
4. Remove and inspect filter(s) for discoloration or dirt accumulation. If either is present, see \	14
5. Clean inside of cover and body thoroughly.	14
6. Install paper filter (see equipment manufacturer’s instructions).	14
7. Install fasteners.	14
8. Install foam pre-filter (see equipment manufacturer’s instructions).	14
1. Body	14
2. Paper Filter	14
3. Fasteners	14
4. Foam Pre-Filter	14
5. Air Cleaner Cover	14
6. Wing Nuts	14
Figure 24. Air Cleaner Components	14
9. Install cover by pushing down onto body securely.	14
10. Install wings nuts and tighten securely.	14
E. Carburetor	14
F. Engine Speed	14
G. Adjustments	14
VIII. Transporting Your Engine	15
1. Empty fuel tank by using a commercially available suction device designed for use with gasoline.	15
2. Drain fuel into an approved red GASOLINE container, being careful to avoid spilling.	15
3. Run the engine until remaining fuel is consumed.	15
IX. Storing Your Engine	15
A. Short-Term/Seasonal Storage	15
I. Clean Engine	15
II. Fuel Storage	15
III. Fuel System	16
IV. Fuel Treatment	16
1. Add fuel stabilizer according to manufacturer’s instructions.	16
2. Run engine at least 10 minutes after adding stabilizer to allow it to reach carburetor.	16
B. Extended Storage	16
I. Draining Fuel	16
1. To prevent serious injury from fuel fires, empty fuel tank by running engine until it stops from lack of fuel. DO NOT attempt to pour fuel from engine.	16
2. Run the engine while waiting until the remaining fuel is consumed.	16
3. Begin servicing the cylinder bore. See \	16
II. Oil Cylinder Bore	17
1. Carefully disconnect spark plug wire and keep it away from spark plug. See Figures 25 and 26.	17
2. Remove spark plug.	17
3. Squirt 1oz. (30 ml) of clean engine oil into spark plug hole.	17
4. Cover spark plug hole with rag to prevent fuel from spraying from spark plug hole when starter rope is pulled.	17
5. Grasp starter cord handle:	17
a. Pull out slowly using a full arm stroke.	17
b. Repeat once. (This will distribute oil throughout the cylinder to prevent corrosion during storage.)	17
6. Install spark plug.	17
7. Carefully disconnect spark plug wire from grounding post, if provided.	17
8. Connect spark plug wire to spark plug before attempting to start engine. See Figures 25 and 26.	17
III. Oil	17
IV. Battery	17
Figure 25. Typical Spark Plug Connection	17
Figure 26. Disconnecting/Connecting Spark Plug	17
X. Preventing Forest, Brush and Grass Fires	17
XI. Maintenance Intervals	18
Table 5. Maintenance Intervals	18
Change Oil	18
Check Oil Level	18
Clean Cooling Fins	18
Clean Foam	18
Pre-Filter	18
Change Oil	18
Replace Paper and Oil Filter	18
Check Spark Plug	18
Replace Spark	18
Plug	18
1. Clean Foam Pre-Filter	19
1. Replace Paper Filter	20
1. Replace Spark Plug	20
XII. Warranty Information	24
181-887-14	24