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Service, Belt care, Replacing battery – Troy-Bilt J860 User Manual

Page 16: Blade care

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Service

7

16

5.

Lubricate the engine crankshaft and the inner surface

of the blade adapter with light oil. Slide the blade

adapter (and wave washer, if applicable) onto the engine

crankshaft. Place the blade on the adapter such that the

side of the blade marked “Bottom” (or with part number)

faces the ground when the mower is in the operating

position. Make sure that the blade is aligned and seated on

the blade adapter flanges.

6.

Place blade bell support on the blade. Align notches on the

blade bell support with small holes in blade.

7.

Replace hex bolt and tighten hex bolt to torque: 450 in. lbs.

min., 600 in. lbs. max.

To ensure safe operation of your mower, periodically check the

blade bolt for correct torque.

Belt Care

NOTE: Several components must be removed in order to change

the mower’s belt. See an authorized Troy-Bilt Service Dealer to

have your belt replaced.

Replacing Battery

WARNING:

Batteries contain sulfuric acid which

may cause burns. Do not short circuit or mutilate

batteries in any way. Do not put batteries in fire as

these may burst or release toxic materials.

Remove the ignition key.

1.

Remove the three screws securing battery harness

2.

assembly to the speed control housing and place them to

the side.
Carefully remove the harness assembly from the speed

3.

control housing. See Fig. 7-2.

Blade Care

WARNING:

When removing the cutting blade for

sharpening or replacement, protect your hands with

a pair of heavy gloves or use a heavy rag to hold the

blade.

Periodically inspect the blade adapter for cracks, especially if you

strike a foreign object. Replace when necessary. Follow the steps

below for blade service.

Disconnect spark plug boot from spark plug. Turn mower

1.

on its side making sure that the air filter and the carburetor

are facing up.
Remove the bolt and the blade bell support which hold the

2.

blade and the blade adapter to the engine crankshaft. See

Fig. 7-1.
Remove blade and adapter from the crankshaft. See Fig.

3.

7-1.

IMPORTANT: When removing these items, a wave washer

may also come off with the adapter. Be sure to include this

washer when reassembling the blade adapter. Failure to do

so will result in the unit not being able to change speeds.
Remove blade from the adapter for testing balance.

4.

Balance the blade on a round shaft screwdriver to check.

Remove metal from the heavy side until it balances evenly.

When sharpening the blade, follow the original angle of

grind. Grind each cutting edge equally to keep the blade

balanced.

WARNING:

An unbalanced blade will cause

excessive vibration when rotating at high speeds. It

may cause damage to mower and could break

causing personal injury.

Figure 7-1

Figure 7-2

Tab

Slot

Blade

Blade

Adapter

Bolt

Blade Bell

Support