Maintenance
Figure 23
1.
Loosen door hinge
nuts-three per side
2.
Place a piece of 3/8 inch
(9.5 mm) rubber on this
surface
PTO Brake Spring
Adjustment
PTO brake spring adjustment is only necessary if the
blower has been removed or replaced or if the PTO
drive idler arm has been disassembled.
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Locate the brake spring and thread the two jam
nuts out to the end of the brake spring rod (see
Figure 24).
3. Tighten jam nuts together at end of brake spring
rod.
Figure 24
1.
Tighten jam nuts here
2.
PTO Brake spring assembly
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 the engine cooling
air intake and inside of the pump drive belt
compartment and damaged or missing rubber
baffles can cause the engine and hydraulic
system to overheat which can create a fire hazard.
Clean all debris from inside of pump drive belt
compartment daily.
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 and from around engine shrouding and
exhaust system area.
3. Clean all debris from around engine, drive belts,
and exhaust system area.
Remove Engine Shrouds and
Clean Cooling Fins
Service Interval: Every 80 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Remove cooling shroud clean-out covers from
engine and clean cooling fins. Also clean dust,
dirt, and oil from external surfaces of engine,
which can cause improper cooling.
3. Make sure cooling shroud clean-out covers are
reinstalled. Operating the engine without cooling
shroud clean-out covers will cause engine damage
due to overheating.
4. For 27HP Kohler units: Swing out the fuel tank
and remove debris from around the oil cooler
positioned at right front corner of engine.
Important:
Do Not use water to clean engine.
Use low pressure compressed air. See Engine
Owner's Manual.
37
Summary of Contents for NAVIGATOR NV640KC
Page 1: ...NAVIGATOR For Serial Nos 312 000 000 Higher Part No 4500 987 Rev A ...
Page 14: ...Safety Molded into Front of Hopper 14 ...
Page 41: ...Schematics Schematics Electrical Diagram All Units Except Kohler EFI 41 ...
Page 42: ...Schematics Electrical Diagram Kohler EFI 42 ...
Page 44: ...Schematics Electrical Logic Schematic All Units Except Kohler EFI 44 ...
Page 47: ...Notes 47 ...
Page 48: ...Notes 48 ...
Page 49: ...Service Record Date Description of Work Done Service Done By 49 ...
Page 50: ...50 ...
