Aeroshell Grease 7

Grease Selection and Use

SERVICING FITTINGS 
First, if your airplane does not have plastic protective grease fitting caps, get some. They are your first line of defense against fitting contamination. They are cheap and effective, but seldom seen.

They are carelessly yanked off and not replaced. If you have your plane serviced and this happens, you might use this as a barometer of the care your plane receives in areas you can’t see. Taking care to do things right tends to extend to the little things as well as big.

Be sure to give the fitting a light wipe with a clean rag to be sure you don’t start service by injecting dirt into the fitting. Unfortunately, constipated, dried out fittings are common on fittings not greased regularly, and it leads to a cycle of neglect. Oc­casionally, disassembly is the only solution, but most times, they can be convinced to cooperate.

Taking the weight off the joint is a good idea anyway to help greasing. Sometimes, exercising the joint helps, as does doing the greasing in warm weather. A little heat from a hair drier (no higher temperatures) has been known to help make a fitting cooperative, as does vigorous cursing.

Increasing the pressure of the grease gun, if an option, can be a mixed bag; if die fitting is indeed clogged, you may only succeed in blowing the fitting off the assem­bly.

Optionally, there is a hammer- struck tool that imparts a sudden, high-pressure air stream to the fitting for stuck Zerks. Use with great care and don’t expect miracles. Lastly, a blast of WD-40 in the fitting and around the joint edges helps in some very' limited applications, along with exercising the joint? The longer you let greasing go the harder to ultimately fix the fitting/joint.

CUN TALK 
The typical hand-cranked grease gun will work fine on free flowing fittings. rlhey typically put out around 1500 psi. It normally will do just about all fittings on the plane with the stock connector. The first thing you should consider with a hand gun is a flexible hose to replace the rigid pipe. It makes maneuvering easier.

Please take the pressure off guns with a plunger handle after use. Leaving the plunger engaged keeps pressure on the grease and tends to press all the oil out of the grease over time. What you have left is only the thickener—not a good thing for the joint or ease of injection.

Second, and particularly for an individual not working under time constraints as in a shop, buy a screw type fitting connector for connecting the grease gun to the fitting.

You press it on and give a half turn or. so to secure the connector to the fitting.

It makes slip-off and wasteful greasing of the outside of the joint less of a problem. (Its only a help, not a cure, and it’s still best to hold it in place with one hand.)

 Download MSDS AeroShell Grease 7
 AeroShell Products
 FRENCH AVIATION SPECIFICATIONS
 RUSSIAN AVIATION SPECIFICATIONS
Grease Selection and Use
BRIEFING NOTE
Boeing and Airbus standardize

AeroShell Grease 7 is an advanced multi-purpose grease,
composed of a synthetic oil thickened with Microgel®, possessing
good load carrying ability over a wide temperature range. It is
inhibited against corrosion and has excellent resistance to water.
The useful operating temperature range is –73°C to +149°C.