MAINTENANCE SCHEDULE
Before performing any maintenance procedures on
the LeeBoy 685D Grader, review Section 1, Safety.
Follow all maintenance schedules and procedures to
maintain the machine in top operating order. Preventive
maintenance on the grader will provide years of trouble-
free operation. Adjustments can be performed in the
eld with ordinary tools. The maintenance schedule
begins with 10-hour, or daily, maintenance intervals
and continues through the 1000-hour, or annual,
maintenance schedule intervals.
NOTE: When performing any routine maintenance,
always include previous routine
maintenance procedures to the higher
hourly schedule.
Engine preventive maintenance, (other than oil, air
and fuel lter changes), can be found in the Engine
Operator’s Manual. Anytime the grader has been
repainted or the decals removed, damaged or illegible,
replace immediately for safe operation.
Tool Hazard! ALWAYS use tools
appropriate for the task. Be sure to use the correct
sized tool for loosening or tightening parts.
Changing oil and cleaning the grader
should only be done in a designated area where
the oil and chemicals can be contained. These by-
products should be discarded in accordance with
environmental regulations.
DO NOT operate a machine that is
in need of repair. Put an information tag on the
instrument panel that says “DO NOT OPERATE”
and remove key from the ignition switch. Repair all
damage promptly as even minor damage can result
in major system failures.
If any maintenance must be
performed while the engine is running, DO NOT leave
the grader unattended.
ALWAYS lower attachments to the
ground. NEVER leave attachments in the raised
position when working on the grader. Securely block
moldboard or other attachments that may fall before
working on them.
Allow the engine and hydraulic system
to cool before working on the machine.
Prepare for Maintenance
1. Park the machine on an even surface and lower all
attachments to the ground and block wheels to
prevent machine movement.
2. Place the FNR (Forward/Neutral/Reverse) lever in
the NEUTRAL (center) position and engage park
brake.
3. Place ignition switch in the OFF position.
10-Hour or Daily Routine
Maintenance
1. Check coolant level. Add more if needed. (Page
5-15)
2. Check air lter indicator. Clean or replace lter if
indicator is red. (Page 5-15)
3. Check hydraulic oil level. Add more if needed.
(Page 5-25) Check hydraulic hoses for leaks and
wear.
4. Check engine drive belt. Adjust or replace if
needed. (Page 5-14)
5. Lubricate steering and tie rods, drawbar ball,
moldboard lift trunnions and cylinders, trunnion
housing, and moldboard swing cylinders. (Pages
5-6 and 5-7)
6. Check tire air pressure and wheels for any damage
and missing or loose lug nuts. (Page 5-29)
50-Hour Routine Maintenance
1. Perform previous maintenance procedures.
2. Check battery connections and remove any
corrosion present. Service battery if needed.
(Page 5-21)
3. Check engine oil and lter. Add more oil if needed.
CHANGE ENGINE OIL AND FILTER AT INITIAL 50
HOURS. (Page 5-13)
4. Lubricate hydraulic cylinder ends, front blade pivots,
moldboard pivots, axle pivot, stabilizer rod ends,
turntable, FNR pedal, and control levers. (Pages
5-6 and 5-7)
5. Perform any other engine preventative maintenance
as described in the Engine Operator’s Manual.
Maintenance
LeeBoy 685D Motor Grader5-4
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