Author Topic: First Time Greasing  (Read 1115 times)

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
First Time Greasing
« on: May 04, 2019, 01:01:05 AM »
Any tips for someone who's never greased a bus before?

My big question: How many tubes could I need?

I'm thinking of ordering Valvoline Synthetic Moly fortified grease online for like $6 each. I've had the bus for 4 years and its greasing history is unknown. Paid a mechanic to grease it (even gave them the map from the manual!) and upon later inspection they did a handful of zerks on the steer axle and that's it. :(

How many tubes of grease? I've read that some people shove like 15 tubes into their tag axles?!
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Offline chessie4905

  • Platinum Donor
  • Hero Member
  • *
  • Posts: 4208
Re: First Time Greasing
« Reply #1 on: May 04, 2019, 03:39:35 AM »
$6 each? I buy a dozen to start. You don't want to run out in middle of job. Jack up each side of front axle before greasing kingpins. Wipe off each grease fitting with a rag before applying grease. Some will probably need dried buildup scraped away with a small screwdriver first. Mke sure great is going INTO fitting, instead of all around it. Be sure the connector on end of grease gun goes on securely. Frequently, dirt gets into the outlet ad it won't keep from leaking grease. Most ends are able to be disassembled, cleaned, and little fingers reversed if worn excessively. An outfit makes and end that securely clips on to end of fitting with a release lever to remove. I recently got one, but haven't tried it out yet.

https://locknlube.com/?gclid=CjwKCAjw8LTmBRBCEiwAbhh-6O2uj_8YoQdfwRcW1FDUD0V_dF24u0VVmL9ND3vLcbFUlmFs9lh6WBoClqgQAvD_BwE
« Last Edit: May 04, 2019, 03:41:28 AM by chessie4905 »
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline sledhead

  • Hero Member
  • *****
  • Posts: 1100
Re: First Time Greasing
« Reply #2 on: May 04, 2019, 04:53:56 AM »
you might want to get a air grease gun . that is what I use and when I first greased my mci the regular pump grease gun would not penetrate the old dried out grease . then I bought a cheap air grease gun and after I used it on the nipples a few times I could go back to the pump gun

https://www.princessauto.com/en/detail/pneumatic-grease-gun/A-p4270328e

I use a 24" rubber hose line on mine to get into the tite places

dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

Offline buswarrior

  • Hero Member
  • *****
  • Posts: 5388
  • '75 MC8 8V71 HT740
Re: First Time Greasing
« Reply #3 on: May 04, 2019, 05:19:19 AM »
All good advise.

HUGE support for proudly buying a powered grease gun, pneumatic or cordless, whatever your budget will withstand.

Nobody greases properly when they get tired...

Ditto on putting a longer hose on it, right there in the store where the grease guns are, there are proper high pressure extension hoses and couplers. It is not uncommon to have to stretch your arm way into there, and there's no room for the gun. Again, the more contortions, the more fatigue, the sooner your greasing standards start slipping...

Check the tag axles, they often have a different larger fitting, you'll need to source one of those from an industrial supplier, civilian sources won't know what it is. Remove the fitting and take it with you to get the match.

Buy LOTS of grease, you'll use it next time, and store it properly, if you didn't know, tubes standing up, with the sealed end down, plastic cap end up. Lying on their side, they start leaking out and make a mess.

And it isn't a bad thing if it takes two days... there is a lot of time and physicality to get the bus into the air, and then all this crawling around and stretching and pushing, then the bus is still in the air and all that stuff has to be gathered up and put away... fatigue makes mistakes... going back fresh tomorrow isn't a bad thing... or the day after that...

happy coaching!
buswarrior
« Last Edit: May 04, 2019, 05:23:41 AM by buswarrior »
Frozen North, Greater Toronto Area

Offline Utahclaimjumper

  • Hero Member
  • *****
  • Posts: 1338
Re: First Time Greasing
« Reply #4 on: May 04, 2019, 05:24:25 AM »

 Check your manual,, various areas take different types of grease. This is one area that one size does not fit averything.>>>Dan
Utclmjmpr 
 EX 4106 (presently SOB)
Cedar City, Ut.
 72 VW Baja towed

Online richard5933

  • Hero Member
  • *****
  • Posts: 2162
Re: First Time Greasing
« Reply #5 on: May 04, 2019, 05:26:10 AM »
If you use a powered grease gun, be aware that there are certain fittings which still need to be done with a hand-pumped gun (or with extreme caution). On my bus things like the speedo drive on the transmission and a few remote zerk fittings all have to be done by hand. The remote fittings especially - I found a huge mound of grease under the end of one where the remote extension tube had ruptured. I'm guessing there was a restriction in the flow where the extension tube connected to the original zerk location, and the powered gun just kept pushing the grease through.
Richard
1974 GMC P8M4108a-125 (Custom Coach "Land Cruiser")
1964 GM PD4106-2412 (Former Bus)
Located in beautiful Wisconsin
KD9GRB

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20914
Re: First Time Greasing
« Reply #6 on: May 04, 2019, 05:32:36 AM »
invest the 20 bucks in locking coupler for the grease gun they are well worth it and buy a good grease gun like a Lincoln plus a box of zerts .Be safe stay out of harms ways you dealing with 10,000 lbs of pressure , when I work for Cat a friend of mine was killed by a grease zert when he removed one under pressure
« Last Edit: May 04, 2019, 05:37:30 AM by luvrbus »
Life is short drink the good wine first

Offline buswarrior

  • Hero Member
  • *****
  • Posts: 5388
  • '75 MC8 8V71 HT740
Re: First Time Greasing
« Reply #7 on: May 04, 2019, 05:37:34 AM »
invest the 20 bucks in locking coupler for the grease gun they are well worth it and buy a good grease gun like a Lincoln plus a box of zerts

And don't buy the zerts/zerks/fittings at the cheapy store, they don't go into anything, threads are crap, rust badly very soon...

These aren't a place to save pennies, buy good ones from industrial grade supplier/name brand.

Yes, I love my Lincoln pneumatic too, if it fits the busnut budget, just do it.

happy coaching!
buswarrior
Frozen North, Greater Toronto Area

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20914
Re: First Time Greasing
« Reply #8 on: May 04, 2019, 05:44:40 AM »
Yep HF grease zerts/zerks suck and good ones are not cheap @ a buck ea
« Last Edit: May 04, 2019, 05:51:19 AM by luvrbus »
Life is short drink the good wine first

Offline Jim Blackwood

  • Call me Doc, or call me arsehole, just don't call me late to dinner.
  • Hero Member
  • *****
  • Posts: 685
  • I'm 25% Farnsworth ;-) 1996 MCI 102DL3
Re: First Time Greasing
« Reply #9 on: May 04, 2019, 05:47:33 AM »
Didn't think I'd be that impressed with a cordless battery powered grease gun until I got one as a present. (Milwaulkee brand) But it sure makes a chore much easier. No longer any need for a third hand. Those locking couplers look good too, That's going on the list. I don't know how the cordless gun compares to air powered for sheer pressure, probably not as good. But it's way more portable.

Jim
Information, without Knowledge, is useless.

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20914
Re: First Time Greasing
« Reply #10 on: May 04, 2019, 06:00:23 AM »
You will love the Locking coupler I use the 2 handle type I like it better than the 1 lever for releasing
Life is short drink the good wine first

Offline DoubleEagle

  • Hero Member
  • *****
  • Posts: 1365
  • BCM Subscriber
Re: First Time Greasing
« Reply #11 on: May 04, 2019, 07:17:42 AM »
The locking coupler I use is a South African design that was from either Northern Tool or Gemplers with one release lever. I have not seen a 2 handle type. Sounds even better, who makes it? One thing is for sure, a locking coupler is highly desirable.
Walter
Dayton, Ohio
1975 Silvereagle Model 05, 8V71, 4 speed Spicer
1982 Eagle Model 10, 6V92, 5 speed Spicer
1984 Eagle Model 10, 6V92 w/Jacobs, Allison HT740
1994 Eagle Model 15-45, Series 60 w/Jacobs, HT741

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20914
Re: First Time Greasing
« Reply #12 on: May 04, 2019, 07:20:50 AM »
The locking coupler I use is a South African design that was from either Northern Tool or Gemplers with one release lever. I have not seen a 2 handle type. Sounds even better, who makes it? One thing is for sure, a locking coupler is highly desirable.


Lock/Lube $29.00,I have one of the XL ( extra long) I like real well too 
« Last Edit: May 04, 2019, 07:28:08 AM by luvrbus »
Life is short drink the good wine first

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
Re: First Time Greasing
« Reply #13 on: May 04, 2019, 10:52:58 AM »
Very helpful tips!

I'm grabbing one of the Milwaukee M12 Cordless Grease Guns and adding a Lock Lube. The YouTube videos sold me on those.

I guess I'll get 20 tubes to get started.
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Offline lostagain

  • Hero Member
  • *****
  • Posts: 2681
  • MC5C
Re: First Time Greasing
« Reply #14 on: May 04, 2019, 12:51:56 PM »
If you are greasing regularly, it doesn't take that much grease. I do mine every time I come home from a major trip, like South, and it only takes less than 2 tubes. That's only a couple of pump strokes per fitting. Oh and I grease the drive shaft U joints more often than that. If you've seen a drive shaft fly off because of dried out U joints, you'll want to keep it greased.

JC
JC
Blackie AB
1977 MC5C, 6V92/HT740

Offline chessie4905

  • Platinum Donor
  • Hero Member
  • *
  • Posts: 4208
Re: First Time Greasing
« Reply #15 on: May 04, 2019, 04:49:28 PM »
I use an air powered lincoln unit with a 16 gallon drum in my pit.
Make sure to get a few spare 45,60,and 90° fittings in both thread sizes. Sometimes re-orienting fittings can be of great benefit. If the grease pees back out of the fitting after adding grease, replace fitting. They make grease fitting service tools with ez-outs rethreader, and angled fitting installers all in one. There is also a tool that you place on the fitting and hit with a hammer to blow out hardened grease or dirt.
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline sledhead

  • Hero Member
  • *****
  • Posts: 1100
Re: First Time Greasing
« Reply #16 on: May 05, 2019, 05:27:51 AM »
so it looks like I jinxed my air grease gun as I was using it yesterday and first the trigger came undone ? tightened it up . then as I was greasing the tractor I blew a hole in the hose ?

so I put a short 12" hose on it and now I am in the market for a new gun and use this one as a back up .

damn only 13 years out of the old  $29 grease gun

dave
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

Offline Jim Blackwood

  • Call me Doc, or call me arsehole, just don't call me late to dinner.
  • Hero Member
  • *****
  • Posts: 685
  • I'm 25% Farnsworth ;-) 1996 MCI 102DL3
Re: First Time Greasing
« Reply #17 on: May 05, 2019, 07:29:22 AM »
I ordered one of those locking grease gun tips off ebay for about 12 bucks, free shipping. I'll see how well it works. Undoubtedly not as good as the premium tool, but it may not have to be. I'll try it out on the bat wing mower. Probably be a year before I need to drive the bus.

Jim
Information, without Knowledge, is useless.

Offline TomC

  • Hero Member
  • *****
  • Posts: 8863
Re: First Time Greasing
« Reply #18 on: May 06, 2019, 10:19:32 PM »
On my 2 axle transit bus, it only takes 1/2 a tube to do the entire bus-including the zerks in the brake cam rollers. I use an air operated with 2ft extension hose-works well. Good Luck, TomC
Tom & Donna Christman. '77 AMGeneral 10240B; 8V-71TATAIC V730.

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
Re: First Time Greasing
« Reply #19 on: May 07, 2019, 07:19:23 PM »
Grease gun came today. Went looking for zerks in the steering column. The manual appears to list them in the every 5,000 miles section and the every 50,000 miles section. There's supposed to be two on the u-joint and one on the slip shaft.

I can only find one on the u-joint and nothing that would grease the flexible coupling near the floor... Where are the other two?!
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Offline chessie4905

  • Platinum Donor
  • Hero Member
  • *
  • Posts: 4208
Re: First Time Greasing
« Reply #20 on: May 08, 2019, 05:25:47 AM »
That one near the floor looks like one off an older GM pickup. If so, it doesn't  get greased. It would be a rubber lined coupling.
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline buswarrior

  • Hero Member
  • *****
  • Posts: 5388
  • '75 MC8 8V71 HT740
Re: First Time Greasing
« Reply #21 on: May 08, 2019, 05:44:52 AM »
Do I have a distant memory of a zerk way down deep in there?

Mine had so much grease down in that cup thing...

Turn the wheel and watch, stuff hides.

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area

Offline Jim Blackwood

  • Call me Doc, or call me arsehole, just don't call me late to dinner.
  • Hero Member
  • *****
  • Posts: 685
  • I'm 25% Farnsworth ;-) 1996 MCI 102DL3
Re: First Time Greasing
« Reply #22 on: May 08, 2019, 07:28:00 AM »
You can dribble some heavy oil down in that cup and it'll be taken care of.

Jim
Information, without Knowledge, is useless.

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
Re: First Time Greasing
« Reply #23 on: May 08, 2019, 09:23:50 AM »
No zerk to be found. I'll add some oil or a little grease and call it good. I love this cordless grease gun paired with the LockNLube coupler. So easy.

I'm noticing that not all the zerks are listed in the manual. I found one on the throttle pedal bracket under the floor. I know that the tag axle has two on the center tube but the book only lists the two on the pivots.

I spent a good amount of time looking for a remote grease plate in the spare tire compartment that isn't there. After squinting at the fuzzy triple copied photos in the manual it looks like those zerks would go to a manual trans clutch setup.

I am having fun greasing though!
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
Re: First Time Greasing
« Reply #24 on: May 17, 2019, 03:05:48 PM »
I got the 79 manual for the mc-9 (as opposed to the 89) and it has cleared a lot up for me. It has a different listing of zerks and map that match my 84.

I went looking for the lower entrance door hinge zerk and found this (see photos). Am I correct that there should be a zerk here? The bottom of the hinge looks smashed off and was filled with dirt and old grease. There should be a plug on the bottom, yah?
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Offline buswarrior

  • Hero Member
  • *****
  • Posts: 5388
  • '75 MC8 8V71 HT740
Re: First Time Greasing
« Reply #25 on: May 17, 2019, 07:16:32 PM »
Yes, they are readily torn off by striking a high curb while attempting whatever driving manoeuvre.

In busnut duty, clean it up, jam some grease in there and when you run out of other things to do, restore a zerk and cover the bottom.

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area

Offline Dave5Cs

  • Hero Member
  • *****
  • Posts: 3684
  • BCM Subscriber
Re: First Time Greasing
« Reply #26 on: May 18, 2019, 01:20:27 PM »
The cup thingy at the base or floor at the steering shaft just fills up with grease. There is no zerk there. It just leaks down around the shaft during use until full. Also there are fittings at the back of the brakes in the rear. Just one pull of grease. Anymore and you will be cleaning up your pads. :)
"Perfect Frequency"1979 MCI MC5Cs 6V-71,644MT Allison.
 1998 Jeep TJ & 2002 Buick Century, Roseville,CA
Congressmen should wear uniforms, like NASCAR drivers, so we could identify their corporate sponsors

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
Re: First Time Greasing
« Reply #27 on: May 18, 2019, 02:26:31 PM »
I cleaned out the lower hinge for the entrance door. Re-tapped it and added a zerk. Also got a plug and put it on the bottom. Greased it up and worked the door back and forth.

I used a needle fitting to get grease into what my wife is calling the "tulip" cup at the bottom of the steering shaft. Thanks for the info on that.

I think it's the brake anchor pins that get just one pump of grease. i read in supposed to take it easy with the brake S cams too. Couple pumps. Also the brake chambers get a special type of lube if they have zerks.
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Offline luvrbus

  • Gold Donor
  • Hero Member
  • *
  • Posts: 20914
Re: First Time Greasing
« Reply #28 on: May 18, 2019, 06:55:10 PM »
You are in the era of synthetic grease now 1 type will cover many of the special type of grease
Life is short drink the good wine first

Offline buswarrior

  • Hero Member
  • *****
  • Posts: 5388
  • '75 MC8 8V71 HT740
Re: First Time Greasing
« Reply #29 on: May 19, 2019, 05:13:23 AM »
Ditto

Our grandfather's era grease is long gone.

Another area in which marching technology has quietly improved lubrication in leaps and bounds.

Pick the colour you like?

Oh how flamboyant and carefree!

Happy coaching!
Buswarrior
Frozen North, Greater Toronto Area

Offline sledhead

  • Hero Member
  • *****
  • Posts: 1100
Re: First Time Greasing
« Reply #30 on: May 19, 2019, 07:44:44 AM »
just replaced the 12" temporary hose I put on the grease gun with a 36" hose

works great !
dave , karen
1990 mci 102c  6v92 ta ht740  kit,living room slide .... sold
2000 featherlite vogue vantare 550 hp 3406e  cat
1875 lbs torque  home base huntsville ontario canada

Online richard5933

  • Hero Member
  • *****
  • Posts: 2162
Re: First Time Greasing
« Reply #31 on: May 19, 2019, 07:58:27 AM »
I like that different colors are available - at least that's a good way to know when the old grease is pushed out of the fitting for the times that you want to do so.
Richard
1974 GMC P8M4108a-125 (Custom Coach "Land Cruiser")
1964 GM PD4106-2412 (Former Bus)
Located in beautiful Wisconsin
KD9GRB

Offline chessie4905

  • Platinum Donor
  • Hero Member
  • *
  • Posts: 4208
Re: First Time Greasing
« Reply #32 on: May 19, 2019, 11:30:19 AM »
Many older greases were pretty good. A lot of the newer stuff is designed to be environmentally friendly.Grease with moly in it works nice in many areas.
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline Jim Blackwood

  • Call me Doc, or call me arsehole, just don't call me late to dinner.
  • Hero Member
  • *****
  • Posts: 685
  • I'm 25% Farnsworth ;-) 1996 MCI 102DL3
Re: First Time Greasing
« Reply #33 on: May 21, 2019, 07:05:29 AM »
Just got my fancy new nozzle, it has the double levers and a 3 jaw chuck, looks like it ought to work. About twelve bucks from ebay. Haven't tried it yet but it's going on the Milwaulkee portable. Soon as things settle down to a dull roar around here I'll give it a test drive.

Jim
Information, without Knowledge, is useless.

Offline chessie4905

  • Platinum Donor
  • Hero Member
  • *
  • Posts: 4208
Re: First Time Greasing
« Reply #34 on: May 21, 2019, 07:22:53 AM »
The good tips unscrew on the ends and the little paddle like inserts can be reversed when worn and no longer hold on the zerk. Take the time to wipe off the zerks before applying grease. Extends life of greasing tip and avoids most dirt entering zerk and not allowing little check ball to seat, resulting in a tiny stream of grease dribbling out.
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
Re: First Time Greasing
« Reply #35 on: June 25, 2019, 12:11:09 PM »
Update:

We got the jacks, ramps and stands out to grease up the rear end of the bus yesterday. This was our first time lifting the back of the bus up and it went very well. I flipped the dash switch to drain the tag axle air then flipped the valves in the engine compartment to finish draining the tag airbags. Then I backed over two 2x12s and chained up the tag axles. I don't think the chains I've put together were the right size (none came with the bus) as they weren't tight when the bus was up.

We ran up on 2x12 treated ramps. Those were made from an 8' on each side. We normally a board of two for leveling when we're parked. Then we used two 20-ton HF air jacks to lift the bus using the jacking points. We placed the jacks on 12"x12" squares of 1/4" steel channel we'd painted blue with tractor paint to keep them from rusting. (they have 1" lips on two sides and are often used for stair tread in industrial applications but we found them in the steel yard scrap bin. These steel squares were on top of 16x24ish 3/4" plywood to help spread the weight because we were on asphalt. Once we got it up high enough we let the axle down on the ramps and the body rested on the 22-ton jack stands (I love those things). We kept most of the axle weight on the jacks. So we had a some redundancy in case one should fail.

Greasing the Tag Axle:

We started greasing with the tag axle. I used about 1.5 tubes of grease on each side. I started with the center tube zerks (not in my manual) that you can't reach unless under the bus. Then moved onto the two zerks (also not in my manual) on the top and bottom of the saddle clamps and finally the one on the pivot arm which is easily seen between the wheels. About half of these zerks needed replacement. The check ball spring couldn't seal and they'd push grease back out.

Greasing the Drive aka Propeller Shaft:

There was a zerk on each U-Joint and one on the slip joint. I made sure to see grease come out of all 4 cross points on the u-joints. The forward u-joint zerk was too tough to reach up above until we lifted the drive wheels up and rotated the shaft. I'm glad those zerks were good because they would've been a pain to change out.

Greasing the Brake Assemblies:

I didn't touch the zerks on the DD3 chambers as it takes a special lubricant. Most of the brake anchor pins did not want to accept any grease. I did two pumps but most of it wouldn't go in. I'll deal with this someday when I get to replacing the brake liners.

Using the cordless grease gun with a long hose made it considerably easier than it would have been. I added red zerk caps to every one I greased. Next, we adjusted the brakes so I'm off to go update that thread!
« Last Edit: June 25, 2019, 12:40:26 PM by GnarlyBus »
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015

Offline chessie4905

  • Platinum Donor
  • Hero Member
  • *
  • Posts: 4208
Re: First Time Greasing
« Reply #36 on: June 25, 2019, 02:24:33 PM »
When you grease the kingpins on the front axle, take the weight off the tires.
GMC h8h 649#028 (4905)
Pennsylvania-central

Offline GnarlyBus

  • Sr. Member
  • ****
  • Posts: 252
Re: First Time Greasing
« Reply #37 on: June 25, 2019, 02:45:51 PM »
Thanks Chessie. I guess I never updated this thread when I did the front a few weeks ago. I thought I had. I did lift the front axle when I greased the king pins.

Before greasing the front I tested the bearings and king pins by trying to move the wheel with hands at 12 and 6 o'clock and 3 and 9 o'clock. Both wheels were tight.
1984 MC-9 w/ 6v92TA & Allison 740
Oregon Summers & Arizona Winters
Full-Time since 2015