Troy-Bilt 683-Horse manual Transmission Gear Oil Maintenance, Checking for Oil Leaks, Preparation

Section 5: Maintenance

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. Remove ignition key, if so equipped.

Failure to follow these instructions can result in serious personal injury or property damage.

IMPORTANT: Do not allow oil or grease to contact the pulleys, drive belt or reverse disc. This can cause the belt or disc to slip on the pulleys.

Lubricate the numbered areas in Figures

5-4 and 5-5, as follows:

1.Oil the wheel shaft between the wheel hubs and the transmission housing (A, Figure 5-4).

2.Oil all pivoting and connecting points on the Wheels/Tines/PTO Drive Lever and the Wheel Speed Lever (B, Figure 5-4).

3.Grease the face of the belt adjustment block (C, Figure 5-4).

4.Oil the Depth Regulator Lever, including the spring in the mounting bracket (D, Figure 5-4).

7.Grease left- and right-side engine mounting bars at the top, the middle, and bottom (G, Figure 5-4).

8.Grease the zerk grease fitting located on the pivot point at the end of the Wheel Speed Lever (H, Figure 5-4). If Wheel Speed Lever has a grease fitting on pivot assembly, apply 2-to-3 strokes of multi- purpose grease at beginning and end of tilling season.

9.Keep the PTO access area well-greased (I, Figure 5-5). If the Tines/PTO Clutch Lever becomes hard to move, squirt some oil into its access hole, and work it back and forth to disperse the oil.

Transmission Gear

Oil Maintenance

expansion, both the power unit transmis- sion and the tine attachment transmis- sions have oil relief vents (Figure 5-6).

The vents allow small amounts of oil to seep out.

Figure 5-6: Oil relief vent locations.

If a serious leak is discovered, please

5. Oil the full length of the throttle cable						Checking for Oil Leaks
						At 25-hour operation intervals, check the
casing (E, Figure 5-4).
6. Oil threads on Handlebar Height Adjust-						tiller for oil leaks. Inspect for oil accumu-
						lations on the tiller or the floor where it’s
ment Lever (F, Figure 5-4).
						stored.
						A small amount of oil seepage or wetness
						around a shaft opening or cover is no
							cause for alarm. But a
					F
		B					heavy concentration of
					E		oil is more serious. You
	D	C					should tighten all bolts
							immediately, and replace
							any worn seals or gaskets.
		H				G	It may be impossible to
							determine how much oil
				B		A
							has been lost, so check
	Figure 5-4: Tiller lubrication points						the oil levels in the PTO
	(wheel removed for clarity).						transmission and the
							tine attachment before
							using the tiller again. Add
							any necessary gear oil.
							Serious damage to the
							transmission components
							can result from operation
							when gear oil levels are
			I				low.
							If tilling during very hot
							weather, the gear oil
							may heat up and expand
	Figure 5-5: Use grease liberally in PTO access area.
							inside the transmis-
30							sions. To allow for this oil

contact your authorized dealer or the Factory Technical Service Department for service advice.

Checking Gear Oil Levels

Every 30 hours of operation, check the gear oil level in both the power unit trans- mission and the tine attachment trans- mission. Operating them while low on gear oil (even briefly) can cause serious damage to internal components.

Preparation

1.The transmissions must be cool, since hot gear oil expands and gives a false reading.

2.The power unit transmission and the tine attachment transmission must be connected when checking (or adding) gear oil.

Checking the Power Unit Oil Level

1.Move the tiller to level ground. Move the Depth Regulator up so the tines rest on the ground.

2.Use a 3/8" wrench to remove the oil level check plug on the left side of the transmission housing (Figure 5-7).