Maintenance
E.Using a 0.010 inch thick feeler gauge, verify that a gap is present between the rotor and armature face on both sides of the brake pole as shown. (Due to the way the rotor and armature faces wear (peaks and valleys) it is sometimes difficult to measure the true gap.)
Figure 44
1.Feeler gauge
Figure 45
1.Feeler gauge
•If the gap is less than 0.010 inch, then reinstall the shim and reference the Troubleshooting section.
•If the gap is sufficient, proceed to the safety check in step F.
F.Perform the following safety check:
a.Sit on the seat and start the engine.
b.Make sure the blades Do Not engage with the PTO switch “off ” and the clutch disengaged.
If the clutch does not disengage, reinstall the shim and reference the Troubleshooting section.
c.Engage and disengage the PTO switch ten consecutive times to ensure the clutch is functioning properly. If the clutch does not engage properly, reference the Troubleshooting section.
Cleaning
Clean Engine and Exhaust System Area
Service Interval: Before each use or daily (May be required more often in dry or dirty conditions.)
CAUTION
Excessive debris around engine cooling air intake and exhaust system area can cause engine, exhaust area, and hydraulic system to overheat which can create a fire hazard.
Clean all debris from engine and exhaust system area.
1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.
2.Clean all debris from rotating engine air intake screen, around engine shrouding, and exhaust system area.
3.Wipe up any excessive grease or oil around the engine and exhaust system area
Remove Engine Shrouds and Clean Cooling Fins
Service Interval: Every 100 hours
1.Stop engine, wait for all moving parts to stop, and remove key. Engage parking brake.
2.Remove cooling shroud
3.Make sure cooling shroud
Clean Hydro Fan Cooling Guards
Service Interval: Before each use or daily
47
