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5.1
GENERAL INFORMATION
Before using this trouble shooting section, the operator should be thoroughly familiar with the AG-152-
AF gas booster system.
For problems not covered in this section or direct technical assistance, please contact a DHI Authorized
Service Provider (see Section 6, Table 2).
5.2
BOOSTER WILL NOT RUN
The booster is a pneumatically operated pump. The reciprocating action is caused by an imbalance of forces
within the pump due to the opposing drive air pressure and the high pressure gas supply that is being
boosted. If the booster is not operating, it means that all forces are equal or that the pistons are seized.
•
Check that the Drive Air Control Kit SHUTOFF valve is in the ON position. If not, set the valve fully to
the ON position.
•
Check that drive air pressure supply is actually present at the DRIVE ADJUST regulator inlet
connection. If not, ensure drive air is supplied at the proper pressure and flow value (see Section
2.3.2.1).
•
Check that the DRIVE ADJUST regulator is set to a pressure of 20 psig (150 kPa) or higher and that
minimum flow requirements are met (see Section 2.3.2.2).
•
Check that there are no gas leaks in the drive air circuit supplying the DRIVE ADJUST regulator.
Repair any existing leaks.
•
Check that gas is not continuously venting from the exhaust muffler. If gas is venting through the
muffler, see Section 5.8.
•
Check that the booster is not in a stalled state. If the booster is stalled, determine the reason and
remedy. A stalled state occurs when the pressure in the high pressure section of the booster is equal
to the pressure in the low pressure section times the ratio (152). A stall can only occur if the high
pressure circuit is plugged.
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© 2007 DH Instruments, a Fluke Company
5. 8BTROUBLESHOOTING
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