Bolens 675B manual Engine Oil Service, Air Cleaner Service, Spark Plug Service, Engine Cleaning

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WARNING: Before inspecting, cleaning or servicing the machine, shut off engine, wait for all moving parts to come to a complete stop, disconnect spark plug wire and move wire away from spark plug. Failure to follow these instructions can result in serious personal injury or property damage.

A. To Check Transmission

1.Check the gear oil level when the trans- mission is cool. Gear oil expands in warm operating temperatures and will result in an incorrect oil level reading.

2.To check the gear oil level (and to add oil, if necessary), refer to STEP 5: Check Gear Oil Level in Transmission in Section 2 of this manual.

B. To Drain and Refill the Transmission:

The transmission gear oil does not need to be changed unless it has been contaminat- ed with dirt, sand or metal particles.

1.Prop up the left side of the unit securely. Remove the left-side wheel by removing the wheel mounting hardware.

2.Unscrew the plastic gear oil fill plug from the top of the transmission

3.Place a clean pan below the transmis- sion drain plug (Figure 5-4) and remove the drain plug. The oil will start flowing out of the drain hole (it may flow slowly, espe- cially in cold temperatures).

Figure 5-4: Remove drain plug to drain trans- mission gear oil (also remove oil fill plug and oil level check plug).

4.Remove the transmission gear oil level check plug that is located a few inches above the left-side wheel shaft (N, Figure 2-11).

5.When the oil stops flowing, tilt the transmission forward to drain oil from the rear of the transmission.

6.After draining the oil, clean the threads of the drain plug, apply a non-hardening, removable gasket sealant to the threads, and securely reinstall the drain plug.

7.Use a clean funnel to slowly add SAE

140or SAE 85W-140 weight gear oil (with an API rating of GL-4 only) to the trans-

mission. The transmission holds approxi- mately 3-14 pints (52-54 ounces). Tilt the tiller slightly backwards to make sure the gear oil reaches the rear (tine) end of the transmission. Stop adding gear oil when it begins to flow from the oil level check hole on the side of the

ion.

8. Securely reinstall the oil level check plug.

9.Securely reinstall the gear oil fill plug on top of the transmission.

10.Reinstall the wheel and remove the prop.

Engine Oil Service

Check the motor oil level before starting the engine each day and after each 5 hours of continuous operation. Running the en- gine when the oil level is low will quickly ruin the engine.

It is recommended that you change the motor oil after every 10 hours of operation and even sooner when operating in ex- tremely dirty or dusty conditions.

A. To Check the Motor Oil Level:

1.Move the tiller to a level area and stop the engine.

2.Level the engine by moving the Depth Regulator Lever into the second notch from the top.

3.Clean the area around the oil dipstick or oil fill tube (whichever applies) to prevent dirt from falling into the crankcase.

4.On engines with an oil fill tube, remove the filler cap and add oil (if required) until it reaches the top of the tube. Reinstall the filler cap.

5.On engines with a dipstick, remove it, wipe it clean, and reinstall it finger-tight. Remove the dipstick again and check the reading. Add oil (if required) to bring the level to the FULL mark. Do not overfill.

B. To Change the Motor Oil:

Change the motor oil as instructed in the separate Engine Owner’s Manual.

Air Cleaner Service

The engine air cleaner filters dirt and dust out of the air before it enters the carbure- tor. Operating the engine with a dirty, clogged air filter can cause poor perfor- mance and damage to the engine. Never operate the engine without the air cleaner installed. Inspect and service the air clean- er more often if operating in very dusty or dirty conditions.

Service the air cleaner as instructed in the separate Engine Owner’s Manual.

Spark Plug Service

Inspect and clean or replace the spark plug after every 100 operating hours or annual- ly. Clean the plug and set the gap as de- scribed in the separate Engine Owner’s Manual.

In some areas, local law requires using re- sistor spark plugs to suppress ignition sig- nals. If the engine was originally equipped with a resistor spark plug, use the same type for replacement.

Spark Arrester Screen Service

If the engine muffler is equipped with a spark arrester screen, remove and clean it according to the time intervals and instruc- tions in the separate Engine Owner’s Man- ual.

Engine Cleaning

The engine must be kept clean to assure smooth operation and to prevent damage from overheating. Refer to the separate Engine Owner’s Manual for specific repair and cleaning instructions. All inspections and services must be done with the engine shut off and cool to the touch.

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Contents 13/04 Form no -00586B.fmTable of Contents Training Safety Alert SymbolPreparation OperationUse slower engine speeds Maintenance and StorageOperating Symbols Safety DecalsVarioussymbolsshownhere,withworddescriptions To Avoid Serious InjuryIntroduction For AssemblyInspect unit Unpacking InstructionsAttach Forward Clutch Control Cable Attach the cable adjuster A, FigureAttach Reverse Clutch Control Cable Check Hardware Check Transmission Gear OIL LevelCheck AIR Wheel Gear Lever Tiller FeaturesForward Clutch Levers Reverse Clutch ControlEngine Controls Handlebar Height AdjustmentDepth Regulator Lever Recoil StarterIntroduction Pre-Start ChecklistBreak-In Operation Starting the EngineFor reverse motion of the wheels and tines Operating TillerStopping the Engine Stopping the Tiller and Engine Changing Belt Range SpeedsTo Change from Low to High Speed To Change from High to Low SpeedLet the Tiller Do the Work Tilling DepthsAvoid Making Footprints Avoid Tilling Soggy, Wet SoilClearing the Tines Tilling On SlopesRead the following recommendations before tilling on slopes Tilling Up and Down Slopes Vertical TillingTiller Lubrication Transmission Gear Oil ServiceCheck Tire Air Pressure Check For Oil LeaksAir Cleaner Service Engine Oil ServiceSpark Plug Service Spark Arrester Screen ServiceTines Throttle Control Adjustment Wheel Gear Cable AdjustmentOff Season Storage To Check and Adjust Tension on the Forward Drive Belt Checking And Adjusting Tension On Drive BeltsTo Check and Adjust Tension on the Re- verse Drive Belt Reinstall the belt cover and secure it with the two nutsRemoving the Forward Drive Belt Forward Drive Belt Removal and InstallationInstalling the Forward Drive Belt Removing the Reverse Drive Belt Reverse Drive Belt Removal and InstallationInstalling the Reverse Drive Belt Troubleshooting Parts List Description Model 675B25, Ref Model 675B GW-1124-2 GW-1714 Bearing, Tapered Roller with Race GW-1325C Model 675B TOP LEFT-HAND Tine Transmission 710-0599 OEM-290-254 Screws TROY-BILT Tiller Lifetime Limited Warranty