Section 5
185 T3 Kubota User Manual 5: Maintenance
02250223-054 R01
Subject to EAR, ECCN EAR99 and related export control restrictions. 39
Maintenance
5.1 General
Consistent and correctly performed maintenance will
ensure the compressor’s performance and extend its
operational life. See Section 5.9: Part replacement and
adjustment procedures on
page 4
0 for a detailed descrip-
tion of specific compressor component
s. Before perform-
ing maintenance actions, read the CIMA Sa
fety Manual,
if applicable. For engine maintenance requirements and
procedures, refer to the Engine Operator’s Manual.
5.2 Engine coolant requirement for
radiators
The coolant provided with Sullair portable air compres-
sors is ethylene glycol based, 50/50 mixture, and should
never be
mixed with a different coolant type, color or
brand. If radiator coolant is to be added, for any reason,
be sure that the coolant added is the same as what is in
the cooling system, as well as what is recommended.
Refer to the maintenance section of the Engine Opera-
tor’s Manual
for prope
r engine coolant specifications and
instructions. Ensure that the proper coolant is used when
adding engine coolant to the machine. If you are not sure
of the coolant that is installed originally or want to change
to a different type, the cooling system must be cleaned
with a commercial cleaning agent and completely flushed
and filled with distilled water several times to remove all
traces of old coolant. Then, fill the system with the rec-
ommended coolant using only one brand/type. Cross
co
ntam
ination which is caused by adding different types
of engine coolants may result in the coolant additives to
deplete (dropout); thus leaving radiator surfaces unpro-
tected. Corrosion to radiator sur
faces may
occur, thus
reducing radiator life expectancy. It is extremely impor-
tant to evacuate/purge all air within the cooling system
befo
re replacing the radiator cap.
5.3 Daily maintenance
SeeSection 4.3: Starting the compressor and Section
4.4: Shutting down the compressor for general operation.
5.4 Maintenance after initial 50
hours of operation
After the initial 50 hours of operation, the following main-
tenance actions are required to eliminate contaminants
from the system:
• Clean the return line orifice and check the
strainer.
• Change the compressor fluid filter.
• Check the Engine Operator’s Manual for ser-
vice requirements.
• Check the fuel filter for water.
WARNING
Do not remove caps, plugs and/or other compo-
nents when the compressor is running or pres-
surized. Stop the compressor and relieve all
internal pressure by following proper lockout/
tagout procedures before removing these items.
CAUTION
The radiator and engine cooling system must be
drained and flushed periodically. Refer to the
OEM Engine Manual for more information.
Replace the coolant with a solution of 50% ethyl-
ene glycol and 50% water or as required for your
g
eograph
ic location. Do not use a leak sealing
type of antifreeze. Should a 100% water solution
be used, a non-chromate rust inhibitor must be
added. Do not mix coolant types.
NOTE
Dispose of fluids in accordance with applicable
federal, state and local regulations.
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