Hydraulic Brake fluid

[Srjeeper]

The TM 9-2330-213-14 (pg 65) for the M105A2C calls for the use of Hydraulic Brake fluid only in the MC.

"Use of petroleum based hydraulic fluid renders brakes inoperative."

Does this mean DOT- 5 , DOT- 3 or something else completely

 

[sprucemt]

Dot 5, silicone brake fluid.

 

[acetomatoco]

and of course you can use Dot 3, as that is what was in there in the original days of the M105. Will probably have the famous yellow sticker for Dot 5 if it is new or converted. Your sticker is to remind you not to use Tractor Hydraulic Fluid or Power Steering Fluid or other stuff like that...

 

[Srjeeper]

Don,& ACE thanks for the info. I'll put the 5 in it as it seems to have been well maintained and just brought out of service. I looked for a Dot 5 sticker but it's gone or was just never put on.

 

[Srjeeper]

Topped off the 105's MC today with DOT-5 and glad I did. The top of the cap for the MC (which ya can't see) is the same as the deuce cap with the breather tube hole in it, but no breather was there. It's fairly well protected up under there, but not THAT protected. Made up a temp breather tube till I can get a breather from a rear to put in there. One weekend I see a brake system flush and refill coming just for piece of mind.