Installation and Troubleshooting

Steering Gears are Life and Limb items and should only be installed by qualified personnel. At all times, manufacturer’s installation procedures and fluid recommendations should be followed.

Installing a steering gear is never a simple matter of bolting the gear on the frame, hooking up a couple of hoses, sticking the pitman arm back on and you're done. For a proper safe installation there are adjustments to be done and procedures to be followed. Otherwise your customer and the public are placed at risk. You should always familiarize yourself with the manufacturer’s recommended method of repair, and take the time to double-check fittings and bolt torque specifications.

Heavy Truck Gears

Fully 99% of all warranty claims we have are due to installation error. For instance, if relief poppets are not set correctly to unload assist prior to reaching steering stops, the full pressure of the pump is applied to a gear that has nowhere to go, and sector shaft leaks WILL occur.

One of the most common complaints we hear is the gear locks up. Unless a steering gear is severely damaged, it will not lock up! The feeling of a steering gear binding is commonly due to two reasons:

  1. Air is trapped in the gear, and the air must be compressed by the oil before the gear will operate. The lag time while the air is being compressed feels like the gear is locking up.
  2. The input shaft yokes have somehow become mis-phased. The intermediate shaft between the steering column and gear must be phased correctly, otherwise the two U-joints will bind against themselves and the gear will typically feel like it has four tight or stiff spots as it turns lock to lock. The manufacturers have placed timing marks on these shafts as a guide to correct phasing.

These are only a few examples of what can go wrong during installation. We ask that before just assuming there is a problem with one of our products, we would appreciate either a phone call to help diagnose the problem, or refer to the troubleshooting guides provided by the OEM manufacturer.

The most common guides can be found at these sites:

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