Safety & Operating Instructions
3-POINT HITCH
Mighty Mac
Gravity Self-Feeding
CHIPPER
20
Chapter 4: Maintaining Your 3-POINT HITCH MIGHTY MAC GRAVITY SELF-FEEDING CHIPPER
This chapter covers regular maintenance procedures that will ensure the best performance and long life of your 3-POINT
HITCH
MIGHTY MAC GRAVITY SELF-FEEDING CHIPPER.
Maintenance Kits and Accessories are available through our website at www.MacKissic.com.
Disengage PTO, shut down the tractor engine, remove the key, wait for all moving parts to come to a complete stop,
disconnect the PTO shaft from the tractor, then wait 5 minutes before moving or performing maintenance/inspection on
the chipper.
Regular Maintenance Check List
NOTE:
Consider that the service intervals shown are the maximum under normal operating conditions. Increase frequencies under
extremely dirty or dusty conditions. See the Owner’s Manual that came with the Tractor and with the PTO Shaft for
Specific
Tractor and PTO Shaft maintenance.
Procedure
Before
Each Use
Every 8-10
Hours
Every 18-20
Hours
Every 40
Hours
Check General Equipment Condition
▲
Check that the Flywheel turns freely (with a long stick
only)
▲
Visually inspect Knife for damage
▲
Check Knife and Wear Plate for Sharpness
▲
Check Knife and Wear Plate Attachment Screws
▲
Check Flywheel Bearing Collar Set Screws
▲
Check Knife to Wear Plate Gap
▲
Lubricate Flywheel Bearings
▲
Lubricate PTO Shaft Grease Fittings
▲
Lubricate PTO Sheave Bearings
▲
Check Belt Tension and Condition
1
st
time 1
hour
▲
Lubricate PTO Shaft Spline ends and center overlap
▲
Inspect or replace Drive Belt
▲










