14 Bolt hub re-installation........New Question, same topic!!

[Hogback Fabrication]

OK. Well, I highlighted the dana and not the sagnaw but they are the same.

After you get it to 50 while spinning the hub, it's back off and then hand snugged and then torqued to 9-12 foot pounds(41-54 Nw) and then back off the 135 to 150 degrees.

That sure looks like the instructions for the disc brake D70...

 

[cuervo]

That sure looks like the instructions for the disc brake D70...

In the same photo you can see just below the dana drum it says saginaw drum and below those is the disk versions. It seems they are all the same.

But, I've been wrong before!

 

[Hogback Fabrication]

In the same photo you can see just below the dana drum it says saginaw drum and below those is the disk versions. It seems they are all the same.

But, I've been wrong before!

The way I read it, in the column that says "adjusting nut back off" the drum brake Dana/GM axles have two asterisks, correlating to the one instruction set and the disc brake Dana axle looks like it has three asterisks which has the other instruction set.

 

[cuervo]

The way I read it, in the column that says "adjusting nut back off" the drum brake Dana/GM axles have two asterisks, correlating to the one instruction set and the disc brake Dana axle looks like it has three asterisks which has the other instruction set.

I see what you are saying now and I do think you are correct in the asterisk info. I missed that.

I'm still looking through the -20 manual as the -34 says to see the -20 for rear hub bearing adjustment. Military manuals, you have to love them.

 

[45acpJr]

I'm driving right now but if you look at the 14 bold bible he scanned the military manuals

 

[cuervo]

I'm driving right now but if you look at the 14 bold bible he scanned the military manuals

Yeah that is the -34. I can find no info on hub bearing preloads in it. Likewise, the -34 I download says to look in the -20 for bearing info. I'm still looking.

edit

TM 9-2320-289-34
7-2. DRUM AND ROTOR REPAIR (Con’t).
FOLLOW-ON TASKS:
• Adjust wheel bearings. (See TM 9-2320-289-20) • Install drum or rotor. (See TM 9-2320-289-20)

/edit

 

[cuervo]

I found it. It was difficult to find because I kept looking in axle maintenance when in fact the -20 has a section just for drum, hub, and wheel bearings maintenance. This section is not included in the 14 bolt bible, at least that I ever found.

TM 9-2320-289-20
8-5. DRUM, HUB, AND WHEEL BEARINGS MAINTENANCE (Con’t).
c. INSTALLATION

WARNING
The tapered end of inner wheel bearing assembly (15) must be facing
toward the outboard (cap end) of axle shaft (4 or 11). The tapered end of
the outer wheel bearing assembly (17) must be facing toward the inboard
(splined end) of the axle shaft. Failure to follow this warning may force
wheel off truck during operation, causing serious injury or death to
personnel.

NOTE
• If installing drum (1) on M1009, perform step 4.
• If installing hub (8), drum (9), and wheel bearings (15 or 17) on all
except M1009, perform steps 1-3 as required.
• Apply grease to wheel bearing assemblies (15 or 17) before installation.
(See TM 9-214)
. Before adjusting bearings (15 or 17), ensure that brakes are fully
released and do not drag.

1. Aline hub (8) and drum (9) stud holes. Press 8 wheel studs (10) into hub and drum with arbor
press. Hub must seat tightly against drum.

2. Install outer wheel bearing assembly (17) in hub (8) past snapring slot, Install snapring (16) in
slot. Tap outer wheel bearing assembly to seat on ring. Install inner wheel bearing assembly
(15) and new seal (14) in hub. Position hub and drum assembly on spindle (11).

3. Install adjusting nut (18). Tighten
adjusting nut to 50 Ib.-ft. (68 N•m)
while rotating hub (8) and drum (9)
assembly to seat bearings (15 and
17). Loosen adjusting nut slightly to
aline for installation of key (7). Install
key in adjusting nut, Install retainer
(6) on spindle (11). Ensure that
retainer is properly seated.

4. Install 6 wheel studs (2) to axle shaft
(4), if removed. Install drum (1) on
axle shaft studs.

So in fact, tighten to 50 ft pounds while spinning the hub and back off to first keyway.

Also of note: (Grease the rear bearings!!! Lots of people say don't because oil and grease wont mix.)

• Apply grease to wheel bearing assemblies (15 or 17) before installation.
(See TM 9-214)

 

[cuervo]

THAT is more like it, 50 ft. lbs. on the first spindle nut like that would mean immediate, catastrophic failure.

It is in fact 50 ft pounds while spinning the hub.

I'm also splitting up the -20 for the 8.5 hub stuff and will upload it somewhere for everyone to get.

 

[cuervo]

Here is just the drum, hub, bearing and wheel section of the -20.