Wheel seal leaking on a Korvan 9000

So I was doing a PDI on a older machine that we took on a trade and I noticed gear oil on the inside of the tire. This is usually caused by the brake-to-wheel gasket going bad (I posted a little while back on that) but as I tore it apart I could tell it was actually leaking from the wheel seal instead. I was amazed as I pulled it apart how much it is actually like the truck wheel seals we did at school.

So I pulled the hub assembly and started ripping it apart.

All the gears in here have to be timed perfectly...so that took me a bit of time.

Korvan, in all their wisdom, covers EVERYTHING in thick paint. I had to get the model so I could get the correct timing instructions.

The bearing on the inside of the hub

The hub just after I pulled the old seal.

Parts...

New seal just pounded in.

Putting it back together...

The inner gears.

Ready to install the inner gears.

Everything is all timed and ready to go.

Back on the machine!

Speed sensor

Just thought I would show you guys this since Jeff was talking about them the other day. Its the speed sensor from the beater head. And if you notice...it got a little too close to the gears...

Day Sheets

Sheets 15-17 completed
Sheet 18 completed EXCEPT for the actual alignments. I have only completed one string-and-tape alignment so far.

Job update...

So we have been really busy at work gearing up for harvest. So that means a lot of service calls (mainly in Canada) to check out machines and make sure they are ready to go.

Back at the shop I have been doing a bunch of PDIs (Pre-Delivery Inspections) on brand new harvesters. The big thing when doing a PDI is to, like Jeff has been talking about, always carry a flashlight and go over the entire machine. When you are checking the fluid levels, greasing the machine and such you always keep a eye out for anything that is out of the ordinary. It is amazing some of the stuff that makes it past the factory QC guys...

Just the other day I started a PDI on a older machine that we took on a trade. It was interesting to do so after working on new harvesters and now getting to see how all the ware parts look after several years in service. Those machines can really take a beating!

Alignment Reflection

As the alignment section comes to a close I have to say I really don't think I got nearly enough learning time in on this. The problem is I don't work on trucks so I leave early from school and then go work on harvesters...that have no connection to what we were learning in school. However I have done my best to follow along with everyone and do all the reading/watching videos and I believe that, if I had to, I could get a alignment done. I really want to thank Jeff for working with us guys who have jobs and can't get the training time that everyone else has.

Hour Log

Week of 4/29/12
School 12 hours
Work 26.4 hours
Total 38 hours
Quarter total 187.45

Week of 5/06/12
School 12 hours
Work 25.13 hours
Total 37.13 hours
Quarter total 224.58

Week of 5/13/12
School 12 hours
Work 32.35 hours
Total 44.35
Quarter hours 269.93

Week of 5/20/12
School 6 hours
Work 39.05 hours
Total 45.05
Quarter total 313.98

Wheel bearings

Make sure that before you start you have all the correct torque specs.

Ready to get started...

Removing the wheel

Removing the wheel end cap

Wheel end cap now gone, pull out the bearing and the hum will slide right off.

This wheel seal has seen better days...

Wheel seal now pulled, we then pulled the bearing out and inspected it.

Inspecting the brake shoes

Both brake shoes pulled...

Pulled the S-cam

 Ready to install wheel seal

Kieth pounding in wheel seal

Brakes reassembled

Torquing wheel bearings 

Reinstalling the wheel end cap

Ready to reinstall the wheel

Checking wheel bearing play. Different truck, same concept. 

Pounding wheel seal. Different truck, same concept.

Truck brake failure

My dad just sent me this...the truck driver is his boss's dad.

"According to OSP Trooper Mark Jubitz, on May 4, 2012 at approximately 2:00 p.m. a 1996 Kenworth truck pulling a 53-foot semi-trailer loaded with 35,000 lbs of mixed farm products was northbound on Highway 197 approaching the intersection with Highway 30 on the east end of The Dalles. According to the truck's driver, (name removed to protect person...my lawyers made me do it), age 77, from Dufur, the truck's brakes failed to work and as he tried to control the truck and trailer, narrowly missing a parked vehicle on the shoulder and flipped onto its side. The truck and trailer slid through the intersection hitting several street signs, a lamp post and damaged 140 feet of guardrail in a wide gravel area on the west side of the highway."

Farmers' shop

Pic of our main tractor shop. Both the harvesters in this picture are korvan 9000s.

North bound

So tomorrow (friday) I'm going to be heading up to canada for my job so I will not be in school. I'll try to get a post up after work tomorrow with some of the stuff I'll be doing.

Leaking wheel gasket on a Korvan 7420

So this was one of my projects at work the other day and I thought I would take a few pics to show all of you kinda what I deal with when it comes to brakes, wheel ends, and such. Sorry for the poor picture quality but I don't like taking pictures while on the clock so these are my top secret spy shots.

So this is the front left wheel bolster. Basically it has a hydraulic drive motor that bolts onto the hub...that is full of precisionly timed gear (I ripped one apart and got ripped apart for doing so lol). 

This is the Hydraulic drive motor that has been pulled off the wheel hub.

Here is the mating surface between the drive motor and the hub. There is a gasket that goes between the two and it was ripped and leaking. This is a quick and easy fix...and its really nice when its just this gasket leaking and nothing in the hub or drive motor.

Brake job on my Ranger

So last Thursday I started noticing my braking power was starting to feel a little weak and by Saturday it was almost completely gone. I noticed that the inside of the rear passenger side tire was covered in brake fluid so I pulled the tire and the drum and things didn't look so good.  

The retaining pin was gone as well as the auto adjuster. The brake cylinder was also shot.

The picture on the right is the adjustment tab deal...and as you can see compared to the good one in the left picture it has had better days.

The brake drum had several deep groves in it so it had to be replaced as well.

This ended up being my first brake job. I went ahead and rebuilt the left rear brake as well so they should be good for a while. Kinda crazy how I did this Sunday and then we started brakes on Monday.

Hour Log

Week of 4/22/12

School 10.5 hours

Work 36.15

Total 46.65

Quarter total 149.45