TM 5-3895-374-24-2
FEBRUARY 1993
TROUBLE SHOOTING GUIDE
This section on trouble shooting is provided as a guide for pinpointing in a hurry, the cause of any problem connected
with the baghouse, thereby cutting downtime and maintenance costs.
The following charts list the most common problems, which may be found in a baghouse air pollution control system, and
offers general solutions for the problems. In checking out any malfunction, check out the obvious and simplest steps first.
There are a number of instances in which the solution is to consult the manufacturer.
In either case, the key to good trouble shooting is a good maintenance program which may eliminate possible downtime.
It is also very important to maintain a good inventory of recommended spare parts.
TABLE ONE
JET PULSE TROUBLE SHOOTING
TROUBLE
POSSIBLE CAUSE
REMEDY
Unit does not operate
No power to unit
Check input voltage
Blown fuse
Locate & correct short
circuit. Replace circuit.
Timer operation okay but
Broken power lead to
Check continuity of all
pilot valves inoperate
valve
valves
Broken lead from common
Check continually of all
to pilot valve
pilot valve repair as
necessary
Timer operation okay but
Open valve circuit
Check continuity to open
one pilot valve not functioning
valve repair as necessary
Faulty output circuit
Check timer output
voltage
Failure of pilot valve
Relieve air pressure;
disassemble pilot; clean
and repair
Timer and pilot value
Failure of diaphragm
Relieve air pressure;
function but diaphragm
valve
disassemble valve;
does not
clean and repair
One pilot valve stays on
Faulty output circuit
Remove power from timer;
continuously
if valve closes, change
timer sequence board;
if not, clean and repair
valve
The timers have a one year warranty on parts an workmanship. If timer fails to operate, do not attempt to service.
Contact Griffin Environmental Co., Inc. immediately.
NOTE:
If collector operation is critical to plant operation, a timer sequence board should
be carried as a spare.
page 3-698
