---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 02/10/12: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 09:30 AM - Re: basic lube question (Walter Lannon) 2. 10:32 AM - Re: basic lube question (Cliff Coy) ________________________________ Message 1 _____________________________________ Time: 09:30:04 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: basic lube question Cliff; For the propellor =93 Many years ago (25+) Shell stopped producing Aeroshell Grease 5 which was the Hamilton Standard spec. for the counterweight type propellor (2D30, 12D40, etc.) So most overhaul facilities reverted to Aeroshell 6. A few years later the demand for Grease 5 was so high that it was produced under the ROYCO name and then finally back under Shell. Check the Aeroshell specs. for 5 & 6. You will find that Grease 6 is an =9Ceconomical=9D general purpose grease. Its load carrying abilities are limited and it=99s upper temperature limit is extremely low. The blade bearing rollers and races in the type of propellors we are dealing with require a high load bearing grease such as Aeroshell 5. This may be more critical for HS counterweight types than for the Russian/Chinese variety since the blade turning torque is set much higher. - 50lb/ft vs 8 lb/ft. For the landing gear Grease 7 is fine but so is Grease 5. Why add another grease gun? For the pneumatic system I agree. Cheers; Walt From: Cliff Coy Sent: Thursday, February 09, 2012 2:36 PM Subject: Re: Yak-List: basic lube question For the wheel bearings: Aeroshell #5 For the propeller: Aeroshell #6 For the landing gear and other moving/sliding assemblies: Aeroshell #7 For the actuators and other air components we use MIL-G-4343 Pneumatic System grease. it can be found as Aeroshell #43 or Royco #43 or Jet Lube #33. Cheers, Cliff On Mon, Feb 6, 2012 at 22:45, Walter Lannon wrote: Phil; If you are referring to grease I use and recommend Aeroshell 5. Walt -----Original Message----- From: Philip Nicholson Sent: Monday, February 06, 2012 10:16 AM To: yak-list@matronics.com Subject: Yak-List: basic lube question Gentlemen, Could you advise what grade of lube you are using for landing gear etc. Anyone using synthetic? What commercially available tool are you applying the lube with? Thanks, Phil C-FEPN rget="_blank">http://www.matronics.com/Navigator?Yak-List http://forums.matronics.com le, List Admin. ="_blank">http://www.matronics.com/contribution -- Clifford Coy Border Air Ltd. 629 Airport Rd. Swanton, VT 05488 802-868-2822 TEL 802-868-4465 FAX Skype: Cliff.Coy ________________________________ Message 2 _____________________________________ Time: 10:32:49 AM PST US Subject: Re: Yak-List: basic lube question From: Cliff Coy *Good afternoon Walt, You're absolutely correct- it's all about the grease guns! *grin* Hartzell propellers are manufactured and serviced with Aeroshell #6 and does not recommend mixing of greases. Therefore we have one grease gun labeled for propeller use only. We have one grease gun with Aeroshell #7- which is a general purpose grease approved for damn near everything. We have a bearing packer filled with #5 which is recommended by Aeroshell for wheel bearings. Since we service over 60 aircraft a year and these greases are approved for the applications for which we use them, it's simpler to use the "5,6,7" rule in most cases. Best regards, Cliff * On Fri, Feb 10, 2012 at 12:29, Walter Lannon wrote: > Cliff; > > For the propellor ' Many years ago (25+) Shell stopped producing Aerosh ell > Grease 5 which was the Hamilton Standard spec. for the counterweight type > propellor (2D30, 12D40, etc.) So most overhaul facilities reverted to > Aeroshell 6. A few years later the demand for Grease 5 was so high that it > was produced under the ROYCO name and then finally back under Shell. > Check the Aeroshell specs. for 5 & 6. You will find that Grease 6 is an > =93economical=94 general purpose grease. Its load carrying abilities are > limited and it=92s upper temperature limit is extremely low. The blade > bearing rollers and races in the type of propellors we are dealing with > require a high load bearing grease such as Aeroshell 5. > > This may be more critical for HS counterweight types than for the > Russian/Chinese variety since the blade turning torque is set much higher .. > - 50lb/ft vs 8 lb/ft. > > For the landing gear Grease 7 is fine but so is Grease 5. Why add anothe r > grease gun? > > For the pneumatic system I agree. > > Cheers; > Walt > > *From:* Cliff Coy > *Sent:* Thursday, February 09, 2012 2:36 PM > *To:* yak-list@matronics.com > *Subject:* Re: Yak-List: basic lube question > > * > **For the wheel bearings: Aeroshell #5 > For the propeller: Aeroshell #6 > **For the landing gear and other moving/sliding assemblies: Aeroshell #7 > **For the actuators and other air components we use MIL-G-4343 Pneumatic > System grease. it can be found as Aeroshell #43 or Royco #43 or Jet Lube > #33. > > > Cheers, > Cliff > * > On Mon, Feb 6, 2012 at 22:45, Walter Lannon wrote: > >> >> Phil; >> >> If you are referring to grease I use and recommend Aeroshell 5. >> >> Walt >> >> -----Original Message----- From: Philip Nicholson Sent: Monday, February >> 06, 2012 10:16 AM To: yak-list@matronics.com Subject: Yak-List: basic >> lube question m >> > >> >> Gentlemen, >> Could you advise what grade of lube you are using for landing gear >> etc. Anyone using synthetic? What commercially available tool are you >> applying the lube with? >> Thanks, >> >> Phil >> C-FEPN >> >> >> >> >> >> ====**=================== ===========**= >> rget="_blank">http://www.matronics.com/**Navigator?Yak-List >> ====**=====**= >> http://forums.matronics.com >> ====**=================== ===========**= >> le, List Admin. >> ="_blank">http://www.matronics.com/**contribution >> ====**=================== ===========**= >> >> >> >> > > > -- > Clifford Coy > Border Air Ltd. > 629 Airport Rd. > Swanton, VT 05488 > 802-868-2822 TEL > 802-868-4465 FAX > Skype: Cliff.Coy > > * > > href="http://www.matronics.com/Navigator?Yak-List">http://www.matronics .com/Navigator?Yak-List > href="http://forums.matronics.com">http://forums.matronics.com > href="http://www.matronics.com/contribution">http://www.matronics.com/c * > > * > =========== =========== =========== =========== > * > > -- Clifford Coy Border Air Ltd. 629 Airport Rd. Swanton, VT 05488 802-868-2822 TEL 802-868-4465 FAX Skype: Cliff.Coy ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/yak-list Browse Digests http://www.matronics.com/digest/yak-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.