Jump to content
Sign in to follow this  

Recommended Posts

Hello,  I have the Gar -Wood hoist ready to install on the MACK AC & have 2 questions;

1  -  What type & viscosity of oil should be in this unit?  The lines are 3/4" pipe & it has a gear pump

2  -  What size of cable is usually on such a hoist?  

Thank you,

Jack

001.JPG

004.JPG

005.JPG

Share this post


Link to post
Share on other sites

I would measure the width of the groove in the sheave to get in the ballpark for the cable diameter.  If the manufacturer built it with a 5/8 inch groove pulley, they won't be running 1/4" cable.

It would be nice if there was some info on the cylinder tag for the oil needs!   That vintage cylinder may be using a leather seal so could it use something like a 90 weight gear lube?  I don't know.  A resource to check out may be the HCEA site.

http://www.hcea.net/

Share this post


Link to post
Share on other sites

The F series and the previous 1915 and up hoists according to the 1922  flyer from Detroit Wood Hoists call for  glycerin-based medium weight ( 60 wt to 90 wt ?) hydraulic fluid.  Than it was called for because it was corrosion resistant, non hydroscopic and fire resistant. Still made today. Atlas , ARCO and others make it

 

oo1915_wood_hoist.jpg.8e050c34bca738587c37301ad3c9332d.jpg

oo1916_gar_wood_pat2.jpg.cd448a0a1de764af30d974450651e124.jpg

Edited by 41chevy
  • Like 1

Share this post


Link to post
Share on other sites

Thank you both for the replies.     By enlarging & scaling the pictures it looks like the cables are 1/2" diameter which fits well with the sheave as Jim suggested.       Is the flyer mentioned on line somewhere?    

I found the attached  chart that answers the mysterious relation between gear oil, engine oil & hydraulic oil. Medium weight would be in the range of ISO 68,  SAE  20 Crankcase & SAE Gear 80.       I can now speak with my oil supplier to see what is available.

Thank you again for the help.

Jack

 

Viscosity-Chart.jpg 

  • Like 1

Share this post


Link to post
Share on other sites

I'll see if I can get a photo of it. It's so fragile it is in a plastic sleeve. I'll try to get one with out the flash or at least limit it.  Paul

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  

Welcome to BMT!

...The world's best antique, classic & modern Mack Truck support forum! Founded in 2000, BigMackTrucks.com is the place to go for everything related to Mack Trucks!

BMT!

BigMackTrucks.com is owned and operated by Watt's Truck Center, New Alexandria, PA. This forum and it's contents are not affiliated with Mack Trucks, Inc. or Volvo Trucks North America.

×