SECTION 6: MAINTENANCE
AIR N ARC
®
200 SERIES ALL-IN-ONE POWER SYSTEM
®
PAGE - 66
090019-OP_r0
3. When filling or replenishing the compressor
oil, be aware of the quantity via the sight
glass indications: The red circle indicates
both high and low levels.
Do not
overfill the
compressor unit, and
do not
operate the
compressor when the oil level drops below
the LOW indication.
6.5.2.1 COMPRESSOR OIL CHANGE
1. With the machine off, locate the crank case
drain plug [
E
] as indicated in
Figure 6-2
.
2. Place container below plug outlet.
3. Remove the cap on the oil fill port [
D
].
4. Remove the 1/4” drain plug [
E
], and let the oil
drain from the crank case.
5. After oil has drained, replace the drain plug
and tighten.
6. Add oil as needed, but
DO NOT
overfill.
7. Replace oil fill cap [
D
] and tighten.
8. Dispose of discarded oil within the guidelines
of all applicable local, regional and/or federal
laws.
6.5.3 UNLOADER VALVE MAINTENANCE
The unloader valves for low pressure and high pressure
are located on the top of the compressor cylinder head,
as shown in
Figure 6-3
. These valves are susceptible to
contamination from moisture and lack of lubrication,
which may cause them to stick. For routine maintenance
TOOLS/ITEMS NEEDED
REPLACEMENT
PART(S)
Compressor Oil
ISO68, Non-
Detergent Oil
(1.75 Quarts)
Container to Collect Drained
Oil
Wrench (1/4”) for Drain Plug
System Operation Group
Manual
Section
Location
Unloader Valve Maintenance
6.5.3
page 66
Low Pressure Valve Maintenance
6.5.3.1
page 67
Low Pressure Valve Replacement
6.5.3.2
page 69
High Pressure Valve Maintenance
6.5.3.3
page 70
High Pressure Valve Replacement
6.5.3.4
page 71
KEY
DESCRIPTION
A
LOW PRESSURE VALVE
B
HIGH PRESSURE VALVE
Figure 6-3: Unloader Valve Locations
A
B
NOTE
Scheduled intervals may change under
extreme condition environments.
Consult
Section 5.8, Extreme Condition
Operation
to help determine a proper
routine for maintenance under adverse
operation conditions.
