Barksdale Series 5620 - Manual (Page 12)

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Barksdale, Inc. 3211 Fruitland Avenue, Los Angeles CA 90058 (800)835-1060 www.barksdale.com Bulletin No. 272350-A, 07-05-13
12
8.0 TROUBLE SHOOTING
Caution: Chart is used as a quick trouble shooting tool and mainly for reference only. It does
not mean to list all possible causes and solutions to the problems as seen by the user on valve. Contact
factory or authorized dealers for technical support and issues.
PROBLEM POSSIBLE CAUSE SOLUTION / RECOMMENDATION
Handle does not
move
Incorrect valve plumbing
PRESS port for pressure source
RET return port is back to tank or atmosphere
‐ 250 psi back pressure max.
Return port is plugged
Return port cannot be plugged or line be
blocked.
Return port has restriction Return port pressure is 250 psi or less.
Valve plumbed in series. Return port pressure is 250 psi or less.
External Leakage Loose connection Tighten connections.
Internal Leakage Valve handles not in detent. Place handle in detent.
8.1 Maintenance
1. All Barksdale 4-Way Heavy Duty Control Valve are equipped with a grease
fitting in the housing. If media is oil-soluble greasing is not necessary, valve is
self-lubricated each time the valve is cycled. For non-oil based media valve can
be lubricated through this fitting. Frequency of lubrication depends entirely on
the duty cycle of the valve. An increase in handle load will indicate exactly what
lubrication schedule should be followed.
2. Disassemble and inspect valve, replace damaged/worn parts and O-rings every
two years or 2,000,000 cycles whichever occurs first.
3. At first sign of excessive internal leakage valve should be disassembled and
source of leakage repaired. Allowing the valve to continue in operation may
cause excessive wear or damage to other components. This is caused by the
escaping fluid which is generally in the form of a jet stream.