Hydraulics

Observations from 15 Years of Mog Ownership
All photos, Copyright (C) Bill Caid, 2013. All rights reserved.

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Hydraulics

Most folks, myself included, believe that a beefy winch is a requirement for any hard core four wheeling.  In most cases, assuming there is something to hook the winch cable to, you can get yourself out.  But in the desert southwest where we live, trees are in short supply.  But despite this fact, we found a beefy hydraulic winch off a electric utility truck for only $900 so we bought it.  Kai fabricated a heavy duty mount and it was installed on the bumper where it happily sat for about 5 years until I got the pump and control unit.  Everything except the actual winch and hoses were stock Mercedes hardware: pump, reservoir, control valves.

The winch was attached many years ago and until the pump and control system was installed, it was just a cool (if heavy) bumper ornament.  The hoses to the pump and control system are installed and tightened.

The 1300 was designed as a working truck and had a spot for the 20 liter hydraulic reservoir built in.  All we had to do was locate the correct reservoir and bolt it down.  We only put a small amount of fluid in it as the winch did not need much, unlike a piston.  The radiator in the mog is offset to the opposite side to allow room for the hydraulics.

The hydraulic pump is mounted in a pocket below the frame and is driven by dual belts.

The controls for the winch are the lever with the red lock-out ring.  Pull the ring up to unlock the control stick.  Pull the stick toward you for spool in and away for spool out.

We actually had occasion to use the winch on several trips.  The photos below show those stories.

After perhaps 40 miles of dirt road in southern Utah, we passed beyond the nearly 10,000 foot Navajo Peak. The road was on the north side of the ridge, and therefore was shaded from the action of the sun resulting in substantial snow banks. We attempted to navigate through the shallow part of the drifts, but the lip of the roadway collapsed due to the wet soil. We slipped sideways and we headed no way but down. So, we hooked up the winch and prepared for an extraction. We were the first vehicles through this area, so we had to bust through many snow banks to get this far. Plus, our map showed that we were just a few kilometers from the main road, so the urge to continue on was strong. It was late in the day, getting cold and a 40 mile back-track would have been no fun. So, we pressed on.

Kathleen gets up close and personal with Mr. Shovel, clearing the tire path before the extraction. The winch worked great and while we did slip down the face quite a bit before we were able to gain traction, it was a pretty easy job. That said, after we rounded the next point on the road, we had to retreat anyway. The next set of snow banks were too deep and appeared to continue for at least a kilometer. I guess in retrospect, given that we were at 9200 feet, we should have anticipated this, but the locals told us that the road was clear. But, independent of what they said, we decided to turn back. As luck would have it, we got stuck again in the same spot as the first time. This was a more difficult extraction, but we were able to accomplish it in about 30 minutes.


My 1300L acted as the pull-point, but to make the full pull, it required cable from both my winch and Kai's to reach the 600 feet down the dune where they were stuck.


Quick Links:

Zen and Art Home  Disclaimer  Errata  Parts and Parts Vendors  Truck Sales  Service and Repairs 

Engine  Fuel  Hydraulics  Radiator and Cooling   Air System  Brakes  Wheels  Tires  Electrical and Batteries 

Transmission  Clutch  Axles  Hubs  Body  Air Conditioning Tools  Safety