Product Manual

6: Maintenance 185 T4F Kubota User Manual
02250216-781 R02
46 Subject to EAR, ECCN EAR99 and related export control restrictions.
6.5 Maintenance every 50 hours
• Inspect air filter elements and replace if neces-
sary.
• Check the engine fuel/water separator for
water.
6.6 Maintenance every 100 hours
• Clean the radiator and cooler exterior surfaces.
• Check the Engine Operator’s Manual for ser-
vice requirements.
6.7 Maintenance every 250 hours
• Check fan belt tension.
• Clean the radiator and cooler exterior surfaces.
(Where dust and other atmospheric contami-
nants are present, it might be necessary to
clean these parts more frequently.)
•Check the Engine Operator’s Manual for ser-
vice requirements.
• Change the engine oil and filter (see the
Engine Operator’s Manual).
• Clean or replace the scavenge return line strainer.
• Change the air filter primary elements.
• Change the compressor fluid filter.
• Clean the return line orifice.
• Change the engine fuel/water separator filter.
(If the filter tends to clog more often than what
is expected, change the filter more frequently.)
• Change the engine fuel/water separator.
• Check the engine rpm idle speed. The idle
speed should be at the specified minimum idle
speed listed in Section 4.1: Specifications—
49HP 185 Kubota on page 35.
6.8 Maintenance every 1500 hours
• Change the compressor fluid with new Sullair
AWF
®
and replace the fluid filter element. (See
Section 6.9.2: Compressor fluid filter replace-
ment.)
• Lubricate axle bearings on wheel-mounted
units.
• Service the engine cooling system. (See Sec-
tion 6.9.6: Cleaning the engine cooling sys-
tem.)
6.9 Part replacement and
adjustment procedures
6.9.1 Compressor fluid change procedure
1. Run the compressor five to ten minutes to
warm the fluid.
2. Shut the compressor down and relieve all
internal pressure.
3. Drain the fluid receiver tank by removing the
plug, or opening the valve at the bottom of
the receiver tank.
4. Change the compressor fluid and replace the
fluid filter element (For element replacement
see Section 6.9.2: Compressor fluid filter
replacement.)
5. Fill the receiver tank with fluid in accordance
with the specifications in Section 3.
6.9.2 Compressor fluid filter replacement
See Figure 6-1.
1. Remove the old fluid filter with a strap
wrench.
2. Clea
n the gasket seating surface.
3. Apply a light coating of fluid to the new gas-
ket.
4. Hand tighten the new fluid filter until the new
gasket is seated.
5. Continue tightening the fluid filter by hand an
additional ½ to ¾ turn.
6. Restart the compressor and check for leaks.
6.9.3 Air filter maintenance
Refer to Figure 6-2. Air filter maintenance should be per-
formed as often as conditions require. If the filters are
equip
ped with optional maintenance indicators, change
the filters every time the indicators show a change is nec-
essary.
6.9.3.1 Air filter replacement
1. Loosen and remove the air filter and cover.
WARNING
Operating the compressor below its minimum
specified idle speed will damage the compres-
sor. Operating the compressor in this condition
will cause coupling and/or compressor failure.