5. Operation
11
Pay attention to possible faults
Read the instructions carefully
Step 1
INSUFFICIENT FLOW
The Gamajet was configured to meet certain operating conditions outlined at the time of the initial sale, such as flow rate
(m3/Hr/ GPM), pressure (Bar/ PSI), temperature, chemical content of the wash fluid, cycle time, etc. If the Nozzle size is too
small and/or the opening at the bottom of the Stator is too large, the Tee Housing will not turn.
Look for restrictions in the fluid supply such as a clogged filter, kinked hose, or deposits in the piping.
Step 2
TIGHT CLEARANCES
A newly overhauled Alfa Laval GJ 7 may fail to operate when first returned to service. If the machine seems otherwise fine, try
running it with at least one Nozzle removed. The reduction in pressure and additional flow will invariably be enough to
overcome the extra resistance of new Bearings and Seals. Fifteen minutes of operation should loosen the machine to run
normally with the Nozzles reinstalled.
Step 3
DEBRIS INSIDE
Loosen the Inlet Collar Set Screw (38), and remove the Inlet Collar (1), then lift out the Stator (9). Look for and remove any
debris caught in the vanes of Stator and Rotor (10). Remove any material wound around the Input Shaft (22). In addition, check
for any debris caught in the outlet holes of the Stem (3), the nose of the Tee Housing (4), and the Nozzle Housing (5).
