MSL MSF-390 - Safety Valve Adjustment Types

AIR COMPRESSOR MANUAL
- 15 -
SAFETY VALVE TYPE-Ⅱ
Pressure Adjustment
1.The valve user shall a specific cracking
pressure of the valve supplied.
To in crease the cracking pressure of the valve,
turn the adjusting cap "CW" to compress the
spring. To reduce the pressure, turn
counterclockwise.
2. Start the compressor with the spring relaxed
(eight threads showing with the Locking Nut at
bottom), with the discharging port open, check
the gauge pressure as you turn the adjusting
cap "CW" to increase the pressure to the
desired operating range.
3. Set the Locking Nut and the wire to maintain
the set cracking pressure.
󰏗 DANGER
Do not modify Set pressure without Manufacturer
Written Authorization.
SAFETY VALVE TYPE-I
￭ Pressure setting to INCREASE.
Turn the ① PRESSURE ADJUST SCREW to "CW"
after loosening the② LOCK NUT.
Turn the ② LOCK NUT to "CW",after setting
the pressure ,watching the Pressure gauge.
￭ Pressure setting to DECREASE.
Turn the ① PRESSURE ADJUST SCREW to"CCW"
after loosening the ② LOCK NUT.
Turn the ② LOCK NUT to"CW" ,after setting
the pressure ,watching the pressure gauge.
Fig.5-1 Safety type-Ⅱ
Fig.5 Safety type-Ⅰ