From left to right: swing, travel, third drum, steer, steer, front drum, rear drum, and boom hoist (thank god the 7 levers are labeled, otherwise I won't know what each does). I am a bit curious what the two small "steer" levers do. Also, that instrument panel was photographed at the wrong angle and or it's so sooty or stained that the instrument names are illegible. Finally, there's two levers on the floor, two floor pedals, and two levers just near the right cab window. If anyone can please give me a list of what each of these things do, please do as I am a bit curious to know what these other levers, pedals, and instruments do in these older crawler cranes.
Do you have a serial number by chance?
Sadly, no. I'm not into serial numbers.
The steering levers control each track individually. They lock a hub to the drive sprocket to put power to the track (this is after the directional lever is engaged). When you disengage the steering lever it unlocks from the sprocket and also applies a brake band to keep the track from rolling. The brake applied on one side while the other is powered is how it is able to turn. The two pedals in the floor are the brakes for the hoist lines, or the hoist and drag cable if it's set up to be a dragline. The small pedal in the middle is an accellerator pedal. The lever on the left is the master clutch. As far as the two levers on the right, one is a mechanical swing lock and the other one is for Hi and Lo range for the travel. As far as the gauges they are engine oil pressure,temperature, amp meter and the bigger white faced gauge is accumulator pressure. All the functions are hydraulically controlled on that machine. It operates at 1000 psi.
Thx! That'll make it much easier!
He must have been up north in some cold cold conditions. Duct tape sealing the cab joints, and I'm itchy just looking at that insulation stuffed everywhere.
Those were good little cranes for bridge work!