AirDog, the original fuel air separation system. Visit us online at PureFlowAirDog.com
In this video, we will show you how to remove the Gerotor cap to inspect for
damaged O-rings and inspect the Gerotor for proper operation.
First thing you want to do is remove the four cap screws holding the cap to the tower using
a 3/16" allen wrench
Once you've removed all four cap screws, remove the cap by pulling it away from the tower. This will reveal the O-rings and Gerotor. If the pump you are servicing is an AirDog II or AirDog II-4G
there will be 3 O-rings, one around the Gerotor and two around the dual
port ports. If this is an AirDog I, there will only be one O-ring around the Gerotor.
now you can inspect your O-rings. This is where the o-ring is on an AirDog I.
This is where the O-rings are on an AirDog II and AirDog II-4G.
If you suspect the pump is leaking from behind the cap or are having such issues,
inspect for pinched or damaged O-rings. replace any damaged O-ring.
Once the cap is off, you can inspect the gerotor for proper operation.
During troubleshooting, one of our Techs may advise to check to see if the pump runs using direct power
with the Gerotor assembly out of the pump. This will to allow you to remove the Gerotor.
Use a magnet to remove the Gerotor assembly. Check to see if the Gerotor spins freely. If the Geotor spins
freely, it is okay to reuse. If the Gerotor does not spin freely, call in to tech support for assistance.
With the Gerotor out, it is a good time to inspect the Gerotor pocket for any scoring. If scoring is noticed,
call into AirDog Tech Support for assistance.
To reinstall the cap, you'll need to reinstall the Gerotor assembly and O-rings.
Install the Gerotor assembly by installing the inner gear first followed
up by the outer gear. The outer gear will need to be installed the chamfered edge
facing inward. When installing the O-rings, be sure they're in the machined
grooves. If the O-rings are not properly installed in the grooves, they may become
pinched and cause a leak path. Now install the cap back on to the tower
reusing the cap screws that were removed previously. Tighten these cap screws in a
crossing pattern. You will want to loosely tighten the cap screws first, then you can tighten until snug.
Do not over tighten these cap screws!
If you are interested in our products, visit our website at PureFlowAirDog.com
to find a dealer nearest you!