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When the pressure relief valve opens, a stream of high velocity air is released,
resulting in a high noise level and possible discharge of accumulated dirt or other
debris. Always wear eye and ear protection and stand clear of the discharge port
when testing the pressure relief valve to prevent injury.
Never paint, lubricate or alter a relief valve. Do not plug vent or restrict
discharge.
Operation of the unit with improper relief valve setting can result in severe
personal injury or machine damage. Ensure properly set valves are installed
and maintained.
C
A
U
T
I
C
A
U
T
I
C
A
U
T
I
Figure 4-1 – SCHEMATIC TUBING DIAGRAM
13-9-666
Page 28
O
N
O
N
O
N
204EDM797
(Ref. Drawing)
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