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Summary of Contents for john deer 100 Series
- Page 1 JOHN DEERE WORLDWIDE COMMERCIAL & CONSUMER EQUIPMENT DIVISION GX23171 John Deere Tractors 100 Series OMGX23171 K8 OMGX23171 K8 OPERATOR’S MANUAL North American Version Litho in U.S.A.
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Page 2: Table Of Contents
INTRODUCTION c WARNING: The Engine Exhaust Introduction from this product contains chemicals known Thank You for Purchasing a John Deere Product to the State of California to cause cancer, We appreciate having you as a customer and wish you many years of safe birth defects or other reproductive harm. -
Page 3: Product Identification
PRODUCT IDENTIFICATION Engine Serial Number Location Product Identification Record Identification Numbers Lawn Tractors LA105, LA115, LA125, LA135, LA145, LA155, LA165, LA175 PIN (200001-) If you need to contact an Authorized Service Center for information on servicing, always provide the product model and identification numbers. You will need to locate the product identification number (PIN) for the machine and engine serial number. - Page 4 SAFETY LABELS MX41156 WARNING, and CAUTION are used with this safety-alert symbol. DANGER identifies the most serious hazards. Picture Note: Use label number listed in table below to locate complete text of safety label message following this illustration. The operator’s manual also explains any potential safety hazards whenever necessary in special safety messages that are identified with A- WARNING GX22477 the word, CAUTION, and the safety-alert symbol.
- Page 5 SAFETY LABELS Warning AVOID SERIOUS INJURY OR DEATH • Drive up and down slopes, not across. • Avoid sudden turns. • If machine stops going uphill, stop blades and back down slowly. • Keep safety devices (guards, shields, and switches) in place and working.
- Page 6 SAFETY LABELS Warning M159705 Canadian Electromagnetic Compatibility (EMC) Compliance This spark ignition system complies with Canadian ICES-002. M159705 Picture Note: This label is required and installed on machines sold in California. This label may also be installed on machines sold in other locations.
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Page 7: Safety
SAFETY and the mower assembly are not worn and damaged. Replace worn and damaged blades and bolts in sets to preserve balance. Safety • Make sure spark plug, muffler, fuel cap and air cleaner are in place Operating Safely before starting the engine. This cutting machine is capable of amputating hands and •... - Page 8 SAFETY 6. Remove the key. • Stay alert to the presence of children. Never assume that children will remain where you last saw them. Turn the machine off if a child enters the 7. Wait for engine and all moving parts to stop before you leave the work area.
- Page 9 SAFETY • Use only approved hitches. Tow only with a machine that has a hitch • On multi-bladed machines, take care as rotating one blade can cause designed for towing. Do not attach towed equipment except at the other blades to rotate. approved hitch point.
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Page 10: Assembly
ASSEMBLY • Always shut off fuel when storing or transporting machine, if the machine to allow you to stand to one side and NOT in front of or over the tire has a fuel shutoff. assembly. • Do not store machine near an open flame or source of ignition, such as a •... - Page 11 ASSEMBLY 3. Engage attachment engagement switch (B) and allow mower to run for 10 seconds. 4. Disengage attachment engagement switch and wait 10 seconds. 5. Repeat steps 3 and 4 for 12-15 cycles. NOTE: Clutch is now properly burnished. MX7686a 4.
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Page 12: Operating Controls
OPERATING CONTROLS Operating Controls Operator Station Controls (LA105) MX27230 Brake/Clutch Pedal Park Brake Lock Lever Throttle/Choke Lever Reverse Implement Option (RIO) Switch Service Reminder/Hour Meter Key Switch Attachment Engagement Lever Deflector Shield Transmission Shift Lever Fuel Level Window Attachment Lift Lever Operating Controls - 11... - Page 13 OPERATING CONTROLS Operator Station Controls (LA115, LA125, LA135) MX27231 Brake Pedal Park Brake Lock Lever Throttle/Choke Lever Reverse Implement Option (RIO) Switch Key Switch Cruise Control Lever (LA125 and LA135) Service Reminder/Hour Meter Attachment Engagement Lever Forward Travel Pedal Reverse Travel Pedal Deflector Shield Fuel Level Window Attachment Lift Lever...
- Page 14 OPERATING CONTROLS Operator Station Controls (LA145, LA155, LA165, LA175) MX27232 Brake Pedal Park Brake Lock Lever Throttle/Choke Lever Reverse Implement Option (RIO) Switch Key Switch Cruise Control Lever Attachment Engagement Switch Service Reminder/Hour Meter Forward Travel Pedal Reverse Travel Pedal Deflector Shield Fuel Level Window Attachment Lift Lever...
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Page 15: Operating
OPERATING Mower Setting Approximate Cutting Height Operating 4 (Transport) 100 mm (4 in.) Daily Operating Checklist ❏ 1. Put attachment lift lever into the slot adjacent to desired cutting height. Test safety systems. ❏ 2. Adjust mower deck wheels. Check tire pressure. ❏... - Page 16 OPERATING MX4896 three wooden blocks. b.Turn left blade (C) as shown. Hold drive belt and turn right blade (D) as shown. Take measurement for both blades. The difference between blade measurements must not be more than 3 mm (1/8 in.). c.Adjust mower deck level, if necessary.
- Page 17 OPERATING 5. Measure the front edge of the mower deck directly below the front draft Testing Safety Systems arm hanger at point (A). • If necessary, turn the front draft arm nut (C) counterclockwise so the front edge of the mower deck is 3-6 mm (1/8-1/4 in.) lower than the rear corners of the mower deck.
- Page 18 OPERATING Testing Attachment Engagement Switch or Lever 3. Engage attachment engagement switch or lever to start attachment. CAUTION: Avoid injury! Rotating blades are dangerous. CAUTION: Avoid injury! The mower blades should stop in Children or bystanders may be injured by runover and rotating approximately five seconds when the mower or PTO is blades.
- Page 19 OPERATING • Hour meter cannot be reset. Using Key Switch and Headlights MX16555 • If engine is cold: Move throttle/choke lever (A) up to the choke position. • If engine is warm: Move throttle/choke lever (A) to the half-speed position. M94336a A- STOP Position IMPORTANT: Avoid damage! Starter may be damaged if starter is...
- Page 20 OPERATING 2. Turn key to STOP position. Engine will stop and headlights will turn off. Using Travel Controls on Automatic Transmission 3. Remove key. 4. Lock the park brake. CAUTION: Avoid injury! Children or bystanders may be injured by runover and rotating blades. Before traveling forward or Using Travel Controls on Gear Transmission rearward: •...
- Page 21 OPERATING • On models with mechanical attachment engagement lever: Push lever forward. NOTE: The mower and engine will stop as the reverse foot pedal is pressed for Automatic Transmission or when the gear shift lever is moved to the R (reverse) position for Gear Transmission with mower engaged.
- Page 22 OPERATING 3. Hook mulch cover to mower deck: Unplugging Mower, Bagger, or Material Collection System • On 122 cm (48 in.) deck, wheel bracket grooves (F). CAUTION: Avoid injury! Do not attempt to unplug attachment with machine running. • Rotating blades are dangerous. Shut off the engine and remove the key before getting off the seat to inspect the machine and attachment.
- Page 23 OPERATING 7. Fasten machine at the axle or frame to trailer with heavy-duty straps, chains, or cables. Both front and rear straps must be directed down and outward from machine. 8. Secure hood to prevent from lifting while driving. Using Weights CAUTION: Avoid injury! The machine may become unstable when operating on slopes and/or with some attachments.
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Page 24: Service Intervals
SERVICE INTERVALS Using the Power Port (If Equipped) • Travel at slow speed when you mow thick, tall grass, make sharp turns or trim around objects. • Travel at moderate speed when you mow thin grass. CAUTION: Avoid injury! Safe operation requires your full •... -
Page 25: Service Lubrication
SERVICE LUBRICATION • Lubricate front axle pivot. Lubricating Front Axle • Lubricate front axle wheel spindles and bushings. Every 25 Hours • Lubricate mower spindles. • Lubricate mower pivot points. • Lubricate front axle pivot. • Lubricate front axle wheel spindles and bushings. Every 50 Hours •... -
Page 26: Service Engine
SERVICE ENGINE 122 cm (48 in.) and 137 cm (54 in.) Mower Decks: S A E 1 0 W - 4 0 S A E 1 0 W - 3 0 S A E 5 W - 3 0 The following John Deere oils are preferred: MX25900 •... - Page 27 SERVICE ENGINE 6. Remove dipstick. b.Place a drain pan or funnel under filter tray. 7. Check oil level on dipstick. Oil must be between ADD and FULL marks. c.Remove old filter and filter gasket and dispose of properly. Wipe up any spilled oil.
- Page 28 SERVICE ENGINE Checking and Cleaning Air Cleaner Elements (LA105 8. Clean air cleaner base very carefully, preventing any dirt from falling into carburetor. and LA115) 9. Install foam precleaner on paper filter element. 1. Park machine safely. (See Parking Safely in the SAFETY section.) 10.
- Page 29 SERVICE ENGINE IMPORTANT: Avoid damage! Dirt and debris can enter the engine IMPORTANT: Avoid damage! Dirt and debris can enter the engine through a damaged filter element: through a damaged filter element: • Do not wash paper element. • Do not wash paper element. •...
- Page 30 SERVICE ENGINE 12. Lower hood. Checking and Cleaning Emission Filter (If Equipped) 1. Park machine safely. (See Parking Safely in the SAFETY section.) MX25903 5. Loosen two knobs (A) and remove cover (B). IMPORTANT: Avoid damage! Dirt and debris can enter the engine through a damaged filter element: MX39589 2.
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Page 31: Service Transmission
SERVICE TRANSMISSION • Cracked porcelain. • Pitted or damaged electrodes. • Other wear or damage. 8. Replace spark plug as necessary. MX13768b 6. Slide hose clamps (A) away from fuel filter (B) using a pliers. 7. Disconnect hoses from filter, and raise fuel lines vertically to avoid fuel drainage. - Page 32 SERVICE MOWER a.Remove spring locking pin (B), pull and hold mower engagement drive cable out, lift up and remove from bracket (C). CAUTION: Avoid injury! Component is spring-assisted and b.Remove cable spring (D) from idler sheave bracket (E). under tension. Injury can occur if spring-assisted component is released suddenly.
- Page 33 SERVICE MOWER 3. Slide mower under machine. 4. Put wood blocks under each side of mower deck. CAUTION: Avoid injury! Component is spring-assisted and under tension. Injury can occur if spring-assisted component is 5. Put attachment lift lever in lowest position. released suddenly.
- Page 34 SERVICE MOWER 7. Tighten sheaves to 47 N•m (35 lb-ft). 8. Install belt shields. 9. Install mower deck. 10. Adjust mower belt tension and spindle brakes, if necessary. Replacing Mower Drive Belt (122 cm (48 in.) and 137 cm (54 in.) Mower Decks) 1.
- Page 35 SERVICE MOWER MX25909 MX7681a 4. Measure distance from spindle brake bracket (B) to nut (C) on end of 3. Loosen nuts (A) and move cable bracket (B) away from the center of brake rod. mower deck to tighten belt tension. Move bracket until almost all slack is •...
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Page 36: Service Electrical
SERVICE ELECTRICAL Servicing Mower Blades CAUTION: Avoid injury! Rotating blades are dangerous. Before adjusting or servicing mower: • Disconnect spark plug wire(s) or battery negative (-) cable to prevent engine from starting accidentally. • Always wear gloves when handling mower blades or working near blades. - Page 37 SERVICE ELECTRICAL Service the Battery Safely Cleaning Battery and Terminals 1. Park machine safely. (See Parking Safely in the SAFETY section.) 2. Disconnect and remove battery. 3. Wash battery with solution of four tablespoons of baking soda to one gallon of water. Be careful not to get the soda solution into the cells. 4.
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Page 38: Service Miscellaneous
SERVICE MISCELLANEOUS 5. Start the engine of the disabled machine and run machine for several reformulated fuel are acceptable. Do not use fuel or additives containing minutes. methanol as engine damage can occur. Always use fresh, clean fuel that is purchased in a quantity that can be 6. - Page 39 SERVICE MISCELLANEOUS 5. Fill fuel tank only to bottom of filler neck. Cleaning Plastic Surfaces 6. Install fuel tank cap. IMPORTANT: Avoid damage! Improper care of machine plastic Checking Tire Pressure surfaces can damage that surface: • Do not wipe plastic surfaces when they are dry. Dry wiping will 1.
- Page 40 SERVICE MISCELLANEOUS CAUTION: Avoid injury! The machine can fall or slip from CAUTION: Avoid injury! Components are installed under an unsafe lifting device or supports. spring tension. Wear eye protection and use proper tools when installing and removing components with spring tension. •...
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Page 41: Troubleshooting
TROUBLESHOOTING CAUTION: Avoid injury! The machine can fall or slip from CAUTION: Avoid injury! Explosive separation of tire and rim an unsafe lifting device or supports. parts is possible when they are serviced incorrectly: • Use a safe lifting device rated for the load to be lifted. •... - Page 42 TROUBLESHOOTING CHECK CHECK Engine Runs Cooling fins plugged. Engine Stops Normal condition. (See Using Reverse Implement Unevenly When Gear Shift Option in the OPERATING section.) Loose electrical connections. Lever Is Moved To Choke or throttle cable sticking. The R Fuel line or fuel filter plugged. (REVERSE) Position and Stale or dirty fuel.
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Page 43: Storage
STORAGE CHECK Storage Patches Of Grass Uncut Travel speed too fast. Storing Safety Engine rpm not at wide open throttle. Mower deck needs cleaning. CAUTION: Avoid injury! Fuel vapors are explosive and flammable. Engine exhaust fumes contain carbon monoxide and Belt Slipping Debris in sheaves. -
Page 44: Specifications
SPECIFICATIONS carburetor on gas engine or fuel injectors on diesel engine. Intake Valve Clearance ..0.076 - 0.127 mm (0.003 - 0.005 in.) Exhaust Valve Clearance ..0.13 - 0.18 mm (0.005 - 0.007 in.) Engine: Spark Plug-Gap . - Page 45 SPECIFICATIONS Transaxle Model ......Tuff Torq™ T40 Air Filter ......Cartridge w/ Foam Precleaner Travel Speed - Forward .
- Page 46 SPECIFICATIONS Weight: LA115, LA125 ......204 kg (450 lb) Weight: LA135 ....... . 213 kg (470 lb) Weight: LA145, LA155, LA165 .
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Page 47: Warranty
WARRANTY applicable U.S. Environmental Protection Agency regulations under 40 CFR Part 90: and, Warranty • Free from defects in materials and workmanship which cause such Product Warranty engine to fail to conform with applicable regulations for a period of two years of engine use from the date of sale to the ultimate purchaser. -
Page 48: Index
INDEX • Exhaust manifold. you specific legal rights, and you may also have some rights which vary from state to state. • Catalyst muffler. Miscellaneous Items Used in Above Systems NO DEALER WARRANTY • Vacuum, and temperature sensitive valves and switches. The selling dealer makes no warranty of it’s own and the dealer has no authority to make any representation or promise on behalf of John Deere, •... - Page 49 INDEX Customer Service .................. 48 Moving Machine ..................21 Cutting Height, Adjusting ............... 14 Mower Blades, Checking ................34 Mower Blades, Choosing ...............23 Mower Blades, Servicing ................35 Daily Operating Checklist ..............14 Mower Deck 107 cm (42 in.), Specifications ..........45 Deck Level, Adjust Mower ..............10 Mower Deck 122 cm (48 in.), Specifications ..........45 Deck Level, Checking Mower ..............
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Page 50: Getting Quality Service
GETTING QUALITY SERVICE Transmission, Checking (See your John Deere dealer) ......30 Transporting Machine on Trailer ............22 Travel Controls on Automatic Transmission, Using ....... 19 Troubleshooting Chart ................40 Unplugging Mower, Bagger, Material Collection System ....... 21 Using ...................... 21 Using Wash Port .................. - Page 51 GETTING QUALITY SERVICE Filters: • Oil Filter (all models) • GY20577 • Fuel Filter (all models) • GY20709 • Air Filter - LA105, LA115 • GY20573 • Air Filter - LA125 • GY21055 • Air Filter - LA135, LA145 • GY21056 •...
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Page 52: Service Record
SERVICE RECORD Service Record Record Service Dates Oil Change Oil Filter Change Lubricate Air Cleaner Fuel Filter (If Equipped) Machine Element Check/ Change Clean Service Record - 51...
Need help?
Do you have a question about the 100 Series and is the answer not in the manual?
Questions and answers
The blades do not work
If the blades do not work on a John Deere 100 Series, possible issues could include:
1. The spindle brakes may not be disengaging properly.
2. The mower belt may be too loose or damaged.
3. The blade nut might not be properly torqued (should be 88 N·m or 65 lb-ft).
4. The PTO (Power Take-Off) may not be engaging.
5. The engine may be running at low speed or under poor conditions, affecting performance.
Blades should stop within approximately five seconds when disengaged; if not, service may be needed.
This answer is automatically generated
how do I set park brake
To set the park brake on a John Deere 100 Series:
1. Park the machine safely.
2. Push and hold the brake pedal down.
3. Pull the park brake lever up to lock the park brake.
This answer is automatically generated
i have a older 100 series just mowed lawn on last pass it stoped going foward or backwards. Any ideas on diag. please someone tell me its just low on fluid thanks
A John Deere 100 Series mower may stop moving forward or backward after mowing due to the parking brake being locked or the free-wheeling lever being engaged.
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I have a 100 series with a 42 inch deck and I need to replace the belt. Which belt do I need and I need a diagram of the belt routing
For a John Deere 100 Series with a 42-inch (107 cm) mower deck, the correct replacement belt is part number GX20072. The belt must be routed through both belt guides and under the mower belt and brake rod. The cable spring (J) should be attached to the idler sheave bracket (K), and the cable (L) should be pulled out to align the black end.
This answer is automatically generated
removing air filter
To remove the air filter on a John Deere 100 Series:
1. Lift the hood.
2. Loosen the two knobs (A).
3. Remove the air cleaner cover (B).
4. Carefully remove the paper filter element (C).
5. If equipped, remove the foam precleaner (D) from the paper filter.
Inspect both filters and replace if damaged or very dirty.
This answer is automatically generated
How do I engage mower blades. New mower purchased recently . No mowing to date. Also it indicates adjusting wheels on deck after setting mow height. I can not get the bolt loosened,much less adjusted?
To engage the mower blades on a John Deere 100 Series:
1. Start the engine and let it run at half speed for a few minutes to warm up.
2. Lower the mower deck to the desired cutting height.
3. Push the throttle lever to the full throttle position.
4. Engage the mower:
- If equipped with an electric attachment engagement switch, pull the switch up.
To adjust the deck wheels after setting the mowing height:
- The mower deck wheels should not touch the ground when leveling the deck.
- Ensure the machine is on a flat, level surface and tires are properly inflated.
- Adjust the front draft arm nut so that the front of the deck is 3–6 mm (1/8–1/4 in.) lower than the rear.
This answer is automatically generated
Engine dies when trying to engage blades.
The engine could die when engaging the blades on a John Deere 100 Series due to:
- Choke partially engaged
- Engine rpm not at wide open throttle
- Restricted air flow
- Belt installed incorrectly
- Debris in sheaves
- Worn belt
- Belt tension incorrect
These issues can reduce engine performance or overload the system when the blades are engaged.
This answer is automatically generated
How to start machine
To follow up with 1st email
The Mower Blade Engagement mechanism has an electrical connection with 3 wires connection that engages the Blades. One of the Black wires has become disconnect. HOW do I reconnect it? Does the entire 3 wire connectors need be removed? Or does loose wire just slide into the 3-wire connector mechanism? In the Photo, the disconnect wire is below the black wire below the Blade-engagement mechanism. How do I fix this issue so the switch to engage the mower blades actually engaged & starts the mower blades? I am unable to upload my photo. I will try again on a follow-up e-mail.