OLDASDIRT 30 #1 Posted March 28, 2017 I've got this Hydrogear tranny spread out across my garage floor and I am in need of a parking brake assembly {PN 5966 }. That chunk of metal I found in the bottom of the transmission case belongs to the now defective parking brake. So after trashing 3 drill bits ,.3 punches and emptying a bottle of Mapp gas it is now removed and ready for a new replacement. Of course I'll also be needing the brake shaft seal { PN6449 1/2" ID } since I baked the one that's in there getting the old stuff out. Anyone have any thoughts of where and if these parts can be had? 1 Share this post Link to post Share on other sites
Ed Kennell 38,715 #2 Posted March 28, 2017 (edited) I'm not sure if the pawl is available. I know some guys have welded and reshaped the teeth. The seal should be available at NAPA. Edited March 28, 2017 by Ed Kennell 2 Share this post Link to post Share on other sites
Aldon 4,827 #3 Posted March 28, 2017 45 minutes ago, Ed Kennell said: I'm not sure if the pawl is available. I know some guys have welded and reshaped the teeth. The seal should be available at NAPA. Share this post Link to post Share on other sites
daveoman1966 3,762 #4 Posted March 28, 2017 Your best bet is to have the teeth welded up by a micro-weld shop. Then, by hand, file the teeth back into shape. The reason yours is all chipped away is that it was being used as a PANIC STOP, instead of a PARKING BRAKE. After you get this fixed, DO NOT ever engage the parking brake while moving. ALWAYS come to a complete STOP before engaging it. The really bad thiing is, the filing or chips from this parking pawl get into the hydro system and scar the BRASS piston slipper faces inside the hydro pump./ When they get scarrred badly enough and at operating temp, hyd pressure escapes thru the scars, losing pressure, resulting in ground power loss. Share this post Link to post Share on other sites
Sarge 3,463 #5 Posted March 28, 2017 If you can't find a local shop to weld/shape it back properly , ship it and the corresponding gear here - I have the correct tool steel tig rod to fix it , probably done ten of them here already and it's a pretty easy fix . Do not let someone weld it up with 70 series mig wire - it will brittle the metal in the teeth/part and cause fractures later . Really needs to have a tig running a dc pulse program and the proper filler metal to prevent issues in the metal and keep the strength of the original steel . Sarge 2 Share this post Link to post Share on other sites
pfrederi 17,895 #6 Posted March 28, 2017 I don't see why you couldn't change over to a bail style brake. The are easier to repair. The one in the picture is worn. It is easy to build it up with some welding then file/grind it back to shape shaft seal is CR 4911 1 Share this post Link to post Share on other sites
