Maintenance
Lubricate Brake Handle Pivot
Service Interval: Every 160 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Lubricate bronze bushings on brake handle
pivot with a spray type lubricant or light oil (see
Figure 22).
Figure 22
Left Side of Unit Shown
1.
Brake Handle Pivot
3.
Spring Arm Pivot
2.
PTO Handle Pivot
4.
Toggle Pivot
Lubricate Brake Rod
Bushings
Service Interval: Every 160 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Unhook seat latch and tilt seat up.
3. Lubricate bronze bushings on each end of brake
rod shaft with a spray type lubricant or a light oil
(bushings are located to the inside of the flange
bearings).
Lubricate Steering Linkage
Rod Ends
Service Interval: Every 160 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Unhook seat latch and tilt seat up.
3. Lubricate each end of both steering linkage rods
with a spray lubricant or a light oil.
Lubricate Hopper Switch
Actuator
Service Interval: Every 160 hours
1. Stop engine, wait for all moving parts to stop, and
remove key. Engage parking brake.
2. Raise hopper and locate actuator on right hand
side of mainframe.
3. Lubricate switch actuator rod with a spray
lubricant or a light oil.
Check Spark Plugs
Service Interval: Every 160 hours
Remove spark plugs, check condition and reset gaps,
or replace with new plugs. See Engine Owner's
Manual.
Change Fuel Filter
Service Interval: As required
A fuel filter is installed between the fuel tank and the
engine. Replace when necessary.
Replacement Filters
All Units
Kohler
P/N 24 050 13
Change Hydraulic System
Filter and Fluid
Service Interval: After the first 100 hours
Every 500 hours/Yearly
(whichever comes
first) thereafter
(Every 250 hours/Yearly if
using Mobil 1 15W50)
Note:
Use only Exmark Part No. 109-4180 for
Summer use above 32°F (0°C) or P/N 1-523541
for Winter use below 32°F (0°C). (Refer to the
Hydrostatic Ground Drive System
section in
Specifications for filter specifications.)
38
Summary of Contents for NAVIGATOR
Page 1: ...NAVIGATOR For Serial Nos 400 000 000 Higher Part No 4503 256 Rev A ...
Page 52: ...Schematics Schematics Electrical Diagram All Units Except Kohler EFI 52 ...
Page 53: ...Schematics Electrical Diagram Kohler EFI 53 ...
Page 54: ...Schematics Electrical Schematic All Units Except Kohler EFI 54 ...
Page 55: ...Schematics Electrical Schematic Kohler EFI 55 ...
Page 56: ...Schematics Hydraulic Diagram 56 ...
Page 58: ...58 ...
