Troy-Bilt 12214 - 5.5HP, 12190-3HP Tines, B A B, A. Tine Inspection, Maintenance, Danger

Section 5: Maintenance

WARNING Before inspecting, cleaning or servicing the unit, shut off engine, wait for all 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.

B. To Drain the Transmission Gear Oil:

DANGER

Gasoline is highly flammable and its vapors explosive. Fol- low these safety practices to prevent injury or property damage from fire or explosion.

•Allow the engine and muffler to cool before draining the tiller’s gasoline tank.

•Do not allow open flames, sparks, matches or smoking in the area.

•Wipe away spills and push tiller away from spilled fuel.

•Use only an approved fuel container and store it safely out of the reach of children.

•Do not store gasoline where its vapors could reach an open flame or spark, or where ignition sources are present (such as hot water and space heaters, furnaces, clothes dryers, stoves, electric motors, etc.)

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

1.Drain gasoline from the fuel tank or run the engine until the fuel tank is empty. See “DANGER” statement above.

2.Drain the oil from the engine.

3.Remove the four screws (B, Figure 5-2) and washers from the transmission cover and remove the cover and gasket.

4.Remove the left-side wheel.

5.Tilt the left-side wheel shaft into a drain pan and allow the gear oil to drain through the top of the transmission.

6.After draining oil, reinstall the wheel, install a new gasket (do not reuse old gasket) and screw on transmission cover.

7.Refill transmission using GL-4 gear oil (SAE 85W-140 or SAE 140).

8.Refill the engine with motor oil and replenish the fuel tank with gasoline.

B

A B

Figure 5-2: Remove oil fill plug (A) to check gear oil level and to add gear oil. Remove four cover screws (B) to drain gear oil.

TINES

The tines wear with use and they should be inspected at the beginning of each tilling season and after every 30 operating hours. The tines can be replaced individ- ually or as a complete set. See the separate Parts Catalog for tine identifica- tion and ordering information.

WARNING

This is a CRT (counter-rotating tine) tiller and its tines must be mounted in the direction shown in Figure 5-3. If mounted with curves in the opposite direction, tiller will dig poorly and be more likely to run backward.

Failure to comply could result in personal injury or property damage.

NOTE: You must first remove the tiller hood before removing either a single tine holder or individual tines. Remove the two screws at the front of the hood and the two screws at the rear of the hood and lift off the hood. Be sure to replace the hood securely after changing a tine or tine holders.

A. Tine Inspection:

With use, the tines will become shorter, narrower and pointed. Badly worn tines will result in a loss of tilling depth and

reduced effectiveness in general, and specifically when chopping up and turning under organic matter.

B. Removing and Installing

Tine Assemblies

1.Use a 9/16" socket, 6" extension, a ratchet, and a 9/16" box end wrench to loosen the nut (A, Figure 5-3) and screw

(B) that secure the tine holder to the tine shaft.

2.Use a rubber mallet to tap the tine holder loose. Slide tine assembly off.

3.Repeat Steps 1 and 2 above to remove the other tine assembly.

4.Installing the tine assembly is simply the reverse of its removal. First be sure to remove any rust, uneven spots or burrs from the tine shaft using fine sandpaper. Then grease the tine shaft before rein- stalling the tine assemblies. Be sure all the cutting edges face so they will enter the soil first when the tiller is moving forward– this means the cutting edge on the top of each tine faces toward the operator position. Tighten hardware.

C. Removing and Installing

Individual Tines

1.Use two 9/16" box end wrenches to remove the two screws (C, Figure 5-3) and nuts (D) that secure the tine to its tine holder.

NOTE: If the nuts are rusted, apply pene- trating oil, then loosen the hardware.

2.When installing individual tines, do so in the reverse order from which they were removed. The two sets of inboard tines are installed so one set faces toward the transmission and the other faces away from it. The single outboard tine set faces toward the transmission housing. Also be sure the cutting edge at the top of each tine faces toward the operator position. (See Figure 5-3.)

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