Grease Point Locations?

fam5mel

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Columbia, TN
I was reading the Lippert manual that came with our 337. It says under the maintenance section to grease the suspension. No mention of where the grease fittings are or what type of grease. Can someone tell what I should be greasing, how many fittings there are and the recommended grease to use?l
 
Crawl underneath and you'll see a zerk fitting on the bolt that goes through each end of each spring and shackle - should be one on the equalizer between the springs, also. Offhand, I think there are nine on each side. Any good chassis grease will work as this is not a real demanding application. Pump it until fresh grease comes out the back side.

FWIW, several people have reported that their shackle bolts had a dab of red grease on the zerk like it had been greased, but it was actually dry. Mine was that way, too, so I made a point of using black grease to see if any red grease came out - zero, nada, nothing.

If you find a zerk that won't take grease, try taking the weight off that bolt and try again.
 
Crawled under the 337 today and pumped grease into zerk fittings. Seven on each side. As others have mentioned it looked like the only grease found was on the zerk fittings. Red grease. I used a brown chassis grease and never saw any red grease expelled. As my luck goes the last fitting will not take any grease. It was suggested to take the weight off of the bolt. Too do that should I jack the wheel off the ground or is there an easier way? Appreciate all the great advice and help!
 
Need to jack the *other* axle or the frame. You might also try extending the jacks on that side - may have to put a block under the rear jack on that side to get enough stroke.

If that fails, you may need to replace the zerk.
 
The real issue with this is that there is someone at the factory being lazy and applying a dollop of grease on the fitting rather than filling with grease. Surely there must have been a number of failures where it has been proved there was no grease in the bolts. Would that make GD think about investigating at the production line?
I have poked my head under my tailer and there’s signs of red grease on the fittings, have yet to confirm there’s any in them by applying more grease. It’s too cold in michigan right now.
 
Mine when i got it used, wouldnt take grease in any of the outside shackles, i had to remove the bolts and drill out the packed in crud in the little holes, put grease through it and reinstall and grease, it wasnt fun re aligning the holes for the bolts to go back in.
 
Crawled under the 337 today and pumped grease into zerk fittings. Seven on each side. As others have mentioned it looked like the only grease found was on the zerk fittings. Red grease. I used a brown chassis grease and never saw any red grease expelled. As my luck goes the last fitting will not take any grease. It was suggested to take the weight off of the bolt. Too do that should I jack the wheel off the ground or is there an easier way? Appreciate all the great advice and help!

As has been mentioned if the bolt won't take grease it might be a bad zerk but my experience has been when they don't take grease it is from debris in the grease exit hole or an incompletely drilled hole. The way to fix this is support the fitting and partially remove the bolt to expose the hole and clear it. The bolts have splines and need to be driven out with a hammer. I try to use a drift as close to the bolt hole size as possible so it will help keep things aligned while partially disassembled.

Edit: I forgot to mention the hole that needs to be cleared is about halfway down the bolt.
 
Crawled under the 337 today and pumped grease into zerk fittings. Seven on each side. As others have mentioned it looked like the only grease found was on the zerk fittings. Red grease. I used a brown chassis grease and never saw any red grease expelled. As my luck goes the last fitting will not take any grease. It was suggested to take the weight off of the bolt. Too do that should I jack the wheel off the ground or is there an easier way? Appreciate all the great advice and help!
The bushings are probably already shot from the transport to your dealer. They do not like to be run dry.
 
Mine as mentioned, were not maintained by previous owner/s. Removal and installation needed to be pounded out and back in, so not worn at all. Thats pounded in with the hole and bolt greased. Who knows how long and if they were greased from new or by anyone, till i got it.
 
As has been mentioned if the bolt won't take grease it might be a bad zerk but my experience has been when they don't take grease it is from debris in the grease exit hole or an incompletely drilled hole. The way to fix this is support the fitting and partially remove the bolt to expose the hole and clear it. The bolts have splines and need to be driven out with a hammer. I try to use a drift as close to the bolt hole size as possible so it will help keep things aligned while partially disassembled.

Edit: I forgot to mention the hole that needs to be cleared is about halfway down the bolt.
Use a ball joint press instead of a hammer
 

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