Blade sharpening, Blade installation, Replacing belts – Craftsman 247.887330 User Manual
Page 19: Awarning, Replacing the drive belt, Service and maintenanc
Attention! The text in this document has been recognized automatically. To view the original document, you can use the "Original mode".
SERVICE AND MAINTENANC
J
Blade Sharpening
IMPORTANT: If any metal separation is present, replace the blades
with new ones.
To properly sharpen the cutting blades, remove equal amounts of
metal from both ends of the blades along the cutting edges, parallel to
the trailing edge, at a 25° to 30° angle. Figure 21.
Figure 21
It is important that each cutting blade edge be ground equally to
maintain proper blade balance. A poorly balanced blade will cause
excessive vibration and may cause damage to the mower and result
in personal injury. The blade can be tested by balancing it on a round
shaft screwdriver. Grind metal from the heavy side until it balances
evenly.
Blade Installation
1.
When installing a blade, place the side of the blade with a part
number stamped in it facing the ground when the mower is in the
operating position.
2.
Use a torque wrench to tighten the spindle flange nut to between
70-90 foot-pounds.
REPLACING BELTS
AWARNING
Before performing any type of maintenance on the machine, wait for
all parts to stop moving and disconnect the spark plug wire. Failure to
follow this instruction could result in personal injury or property damage.
AWARNING
Avoid the possibility of a pinching injury. Do not place your fingers
between belts and pulleys.
The mower uses three belts: 1) drive belt, 2) deck engagement belt, 3)
blade timing belt. Before replacing a belt, observe how the belt is routed
around the pulleys and brackets to help when installing a replacement.
IMPORTANT: The belts on the mower are specially designed to
engage and disengage safely. For a proper working machine, use
factory approved belts.
Replacing the Drive Belt
1.
Stop engine, wait for all parts to stop moving, and disconnect
spark plug wire.
2.
Release all mower controls.
3.
Remove belt cover as instructed earlier in this section.
4.
Loosen belt keeper (A). The belt keeper is attached to the
underside of the mower frame. Figure 22.
Figure 22
5.
Loosen the idler pulley (B) by loosening bolt and nut. Figure 22.
6.
Remove belt (C) from around pulleys. Figure 22.
7.
Route new belt around the pulleys making sure to tighten nuts,
bolts, and belt keeper.
8.
Replace the belt cover.
19