Hoshizaki DBF-40SAC, Service Manual

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15
Beer
(4) Beer tap keeps dripping beer
Possible Cause Remedy
1. Damaged or deformed rubber seal in beer tap
valve shaft.
1. Replace rubber seal. (See page 32)
2. Damaged beer tap valve seat. 2. Replace valve body.
3. Loosened rubber seal in valve shaft. 3. Disassemble beer tap and fix rubber seal.
4. Clogged air vent hole. 4. Clean air vent hole.
5. CO2 gas pressure too low. 5. Adjust CO2 gas pressure to proper level.
(5) Underfoaming
Possible Cause Remedy
1. CO2 gas pressure too low. 1. Adjust CO2 gas pressure to proper level.
The chart below is a general example.
Adjust to gas pressure specified by beer
manufacturers.
Temperature
of beer keg
CO2 gas pressure
50°F(10°C) 22-29PSIG(0.15-0.20Mpa)
68°F(20°C) 32-36PSIG(0.15-0.20Mpa)
86°F(30°C) 46-51PSIG(0.32-0.35Mpa)
2. Beer dispensing manner. 2. Instruct user to make foam.
3. Beer too cold.
In winter, low beer temperature causes
underfoaming even after dispensing foam.
3. Instruct user to keep temperature of beer keg above
50°F (10°C).
4. Foam circuit in beer tap clogged with dirt or
foreign matter.
4. Disassemble and clean beer tap. If problem still
occurs, replace valve shaft.