NOTICE
■If blade pin is seized in crossbar and extreme force will be required to remove it, support cross- bar from below to prevent damage to spindle.
CAUTION
Your dealer can supply genuine replacement blades. Substitute blades may not meet original equipment specifications and may be dangerous.
Blade Installation
Always replace both blades at the same time to main- tain balance.
Liberally coat blade pin and crossbar hole with Never- Seez® or equivalent. Make sure blade is offset away from deck and cutting edge is positioned for counter- clockwise rotation.
Install blade pin (9) up through blade (8) then through hole in crossbar and push firmly against crossbar (7). Install as many spacers (4, 5 or 6) as possible and still be able to slide keyhole plate (3), with ears up as shown, into blade pin groove. Place blade pin clip (2) over keyhole plate and into blade pin groove. Secure with bolt (1). Repeat for opposite blade. See Figure 7.
Blade should be snug but swivel on pin without exces- sive force. Retain any spacers not used in installation for use when blade wears or on future installations.
Blade Sharpening
Always sharpen both blades at the same time to main- tain balance. Follow original sharpening pattern. Do not sharpen blade to a razor edge. Leave from a 1/16" to 1/8" blunt edge. Do not sharpen back side of blade.
Belt Installation
One of the major causes of belt failure is improper installation.
Before new belts are installed, check pulley shafts and bearings for wear. Check pulley grooves for cleanliness and wear. Be sure they turn freely and with only slight wobble. If grooves require cleaning, moisten a cloth
with a
DB967
Figure 9. Belt Routing
Avoid excessive force during installation. Do not use tools to pry belt into pulley groove. Do not roll belt over pulleys to install. This can cause hidden damage and premature belt failure. Always loosen idlers when installing belts.
The drive on this cutter uses three belts. They are a matched set and must be replaced as such.
Remove belt shields.
Loosen nut on idler adjustment rod (located on right side of gearbox stand) as loose as possible.
Remove old belts and install new ones. Tighten nut on idler adjustment rod. Belts should be very tight.
NOTICE
■Check tension on new belts every half hour the first four hours of operation and then every eight hours.
CHAIN SHIELDING
DANGER
Full chain shielding, designed to reduce the possibility of thrown objects, must be installed when operating in populated areas or other areas where thrown objects could injure people or dam- age property. If this machine is not equipped with full chain shielding, operation must be stopped when anyone comes within 300 feet.
WARNING
Inspect chain, rubber, or steel band shielding before each use. Replace if damaged.
20 Owner Service | 15914 (Rev. 3/23/2007) |
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