Troy-Bilt 424 User Manual

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5
Maintaining 
Your Chipper 
Shredder
WARNING
Always stop engine, 
disconnect spark plug, 
and ground against 
engine before cleaning, 
lubricating or doing any 
kind of maintenance on 
your machine.
Figure 8
Figure 9
WARNING: Always stop engine, 
disconnect spark plug, and ground 
against engine before cleaning, 
lubricating or doing any kind of 
maintenance on your machine.
Lubrication
1.  Lubricate the chipper chute hinge a with light oil 
once a season.
2.  Lubricate the pivot points on the chute deflector with 
light oil once a season.    
3.  Refer to the Briggs & Stratton Owner/Operator 
manual packed with your unit for engine lubrication 
instructions.
Engine Care
Refer to the Maintenance section of the Briggs & 
Stratton Owner/Operator manual packed with your unit. 
Read and follow instructions carefully.
1.  Check 
engine oil level before each use as 
instructed in the separate engine manual.
2.  Clean 
air cleaner’s precleaner every 25 hours 
under normal conditions. Clean every few hours 
under extremely dusty conditions. Replace the 
air 
cleaner cartridge once a season. To service the air 
cleaner, refer to the separate engine manual.
3.  The 
spark plug should be cleaned and the gap reset 
once a season. Refer to the separate engine manual 
for correct plug type and gap specifications.
Chipper Shredder Care
Before each use, visually inspect your chipper shredder 
for loose (or missing) nuts and bolts. Securely tighten 
(or replace) all hardware before operating the chipper 
shredder.
Cleaning The Reduction Chamber
WARNING: The impeller’s shredder 
blade and chipper blades are sharp. 
Wear leather work gloves to protect 
your hands when cleaning out the 
reduction chamber.
If the reduction chamber becomes clogged with debris, 
the shredder screen can be pivoted upward so that you 
can clean the surrounding area. To do so, proceed as 
follows:
1.  Stop engine, disconnect spark plug, and make certain 
the chipper shredder has come to a complete stop.
WARNING: The muffler and surrounding 
area will be hot if the engine has been 
running. Use caution and protect your 
hands if working near the muffler.
2.  a. If attached, remove debris bag. Remove the two 
wing knobs on either side of the chute deflector and 
pivot the chute deflector upward. See Figure 8.
  b. Remove the hairpin clip from the clevis pin which 
extends through the housing and shredder screen. 
See Figure 8. Remove clevis pin.
  c.  Pivot the shredder screen upward and clean the 
surrounding area by scraping away debris.
3.  Confirm that the spark plug wire is disconnected 
and away from spark plug. Pull on the starter rope 
two-to-three times to purge any remaining debris from 
the reduction chamber
4.  When the area is cleaned, pivot the shredder screen 
downward and re-secure with the clevis pin and 
hairpin clip removed earlier.
5.  Reattach the debris collection bag to the chute deflec-
tor, if desired.
Sharpening Or Replacing Chipper 
Blades
WARNING: The impeller’s chipper 
blades are sharp. Wear leather work 
gloves to protect your hands.
1.  Stop engine, disconnect spark plug, and make certain 
the chipper shredder has come to a complete stop.
The impeller’s chip-
per blades are sharp. 
Wear leather work 
gloves to protect your 
hands.
Model 24A-424G766 Shown