Lincoln Electric IM741 RANGER 250 - Manual (Page 24)

D-1 MAINTENANCE D-1
RANGER 250
KOHLER ENGINE
(1) Service more frequently when used in dusty areas and/or at high ambient
temperatures.
SAFETY PRECAUTIONS
• Have qualified personnel do all maintenance
and troubleshooting work.
• Turn the engine off before working inside the
machine or servicing the engine.
• Remove guards only when necessary to
perform maintenance and replace them when
the maintenance requiring their removal is
complete. If guards are missing from the
machine, obtain replacements from a Lincoln
Distributor. (See Operating Manual Parts List.)
Read the Safety Precautions in the front of this
manual and in the Engine Owner
’ s Manual before
working on this machine.
Keep all equipment safety guards, covers, and
devices in position and in good repair. Keep
hands, hair, clothing, and tools away from the
gears, fans, and all other moving parts when
starting, operating, or repairing the equipment.
Routine Maintenance
At the end of each day’s use, refill the fuel tank to
minimize moisture condensation in the tank. Running
out of fuel tends to draw dirt into the fuel system.
Also, check the crankcase oil level and add oil if
indicated.
WARNING
ITEM MAKE AND PART NUMBER
ONAN P220 OHV ENGINE KOHLER CH20 ENGINE
Oil Filter Onan 122-0737, Fram PH4967 Kohler 1205001, Fram PH3614
Air Filter Element Onan 187-6068 Kohler 4708303, Fram CA79
Air Filter Pre-Cleaner N/A Kohler 2408302
Fuel Filter Onan 187-6119 Kohler 2405002, Fram G
Spark Plug Onan 167-1638, NGK BPR4EY Champion RC12YC (.030" Gap)
Battery BCI Group 58 (435 CCA) BCI Group 58 (435 CCA)
FREQUENCY
Daily or Before
Starting Engine
5 Hours
Every 25 Hours
Every 100 Hours
Every 100 Hours
Every 100 Hours
Every 100 Hours
Every 200 Hours
Every 200 Hours
MAINTENANCE REQUIRED
• Fill fuel tank.
• Check oil level.
• Check air cleaner for dirty, loose, or dam-
aged parts.
• Check air intake and cooling areas, clean
as necessary.
First Oil Change
• Service air pre-cleaner..
• Change engine oil. (1)
• Replace fuel filter element.
• Clean or replace air filter element.
(1)
• Spark Arrester
• Replace oil filter.
(1)
• Check spark plug and gap
• Check fuel lines and clamps.
ENGINE MAINTENANCE COMPONENTS
ONAN P220 OHV
FREQUENCY
Daily or Before
Starting Engine
After initial 20 Hours
Every 50 Hours
Every 100 Hours
Every 200 Hours
Every 500 Hours
Every 1000 Hours
MAINTENANCE REQUIRED
• Fill fuel tank.
• Check oil level.
• Check air cleaner for dirty, loose, or damaged parts.
• Check air intake and cooling areas, clean as necessary.
• Inspect for loose hardware and retighten.
• Check for fuel leakage from fuel system. Repair if needed.
•Change oil and oil filter.
• Clean spark plugs.
• Clean outer element of air cleaner.
• Change engine oil.
(1)
• Clean fuel strainer.
• Replace air cleaner assembly.
(1)
• Inspect, clean, and re-gap Spark Plugs.
• Change engine oil filter.
(1)
• Clean Carburetor.
• Clean cylinder head.
• Adjust engine valve clearance.
• Replace spark plugs.
• Replace fuel lines and filter.
(1) Service more frequently when used in dusty areas and/or at high ambient
temperatures.