Troy-Bilt 860 series, Operator'S Manual

Maintenance & Adjustments

6

14

Maintenance

General Recommendations

Always observe safety rules when performing any 

• 

maintenance.
The warranty on this lawn mower does not cover items that 

• 

have been subjected to operator abuse or negligence. To 

receive full value from warranty, operator must maintain 

the lawn mower as instructed here.
Changing of engine-governed speed will void engine 

• 

warranty.
All adjustments should be checked at least once each 

• 

season.

Periodically check all fasteners and make sure these are 

• 

tight.

WARNING: 

Always stop engine, disconnect spark 

plug, and ground against engine before performing 

any type of maintenance on your machine.

Lubrication

Lubricate pivot points on the blade and drive controls 

1. 

at least once a season with light oil. These controls must 

operate freely in both directions. See Fig. 6-1.

Lubricate the wheels and rear wheel gears at least once a 

2. 

season with light oil (or motor oil). If wheels are removed 

for any reason, lubricate surface of the pivot arm and inner 

surface of the wheel with light oil. See Fig. 6-1.

Lubricate the torsion spring and pivot points on the rear 

3. 

discharge door and side mulch plug periodically with light 

oil to prevent rust. See Fig. 6-1.

The transmission is pre-lubricated and sealed at the factory 

4. 

and does not require lubrication.
Follow the accompanying engine manual for lubrication 

5. 

schedule and instruction for engine lubrication.

Deck Care

Clean underside of the mower deck after each use to prevent 

build-up of grass clippings or other debris. Follow steps below 

for this job.

Disconnect spark plug wire. Drain gasoline from lawn 

1. 

mower or place a piece of plastic under the gas cap.
Tip mower so that it rests on the engine housing. Keep the 

2. 

side with the air cleaner facing up. Hold mower firmly.

WARNING: 

Never tip the mower more than 90º in 

any direction and do not leave the mower tipped for 

any length of time. Oil can drain into the upper part 

of the engine causing a starting problem.

3. 

Scrape and clean the underside of the deck with a suitable 

tool. Do not spray with water.

IMPORTANT:  

Do not use a pressure washer or garden hose 

to clean your unit. These may cause damage to bearings, 

or the engine. The use of water will result in shortened life 

and reduce serviceability.

4. 

Put the mower back on its wheels on the ground. If you had 

put plastic under the gas cap earlier, make sure to remove it 

now.

Figure 6-1