The Rollover Washer as generally depicted on drawing 84001-3 shall be capable of washing vehicles ranging from automobiles to 11'-6" high buses.
The Rollover Washer is self-propelled and track mounted so as to effectively wash a properly positioned stationary vehicle. The wash function is automatically controlled, but provides manual override controls for semi-automatic operation where vehicle type dictates such control. The following is a list of sequential functions that are programmed into the programmable controller:
The body of the machine shall consist of three basic structures - two side frames and one bridge. These structures shall be fabricated in aircraft style uni-structure utilizing 2"x2"x.125, 2"x4"x.125, and 1"x1x.083 structural tubing. (18) gauge panelling shall be mounted to the exterior of the vertical and horizontal structures.
The side brush yokes (2) in which the side brush shafts and brushes are suspended and on which the brush drives are mounted, shall be fabricated from 2"x2"x.125 rectangular structural tubing. Each yoke to be hung from its respective side support structure by top and bottom sealed 1" diameter flange bearings. The horizontal 2-3/4" brush shaft shall be bearing mounted in mounting blocks at each end, which in turn shall be suspended on the elevator chain. Said blocks shall ride vertically between structural containment guides.
Side brush yokes shall be equipped with two 2-way cylinders for lateral movement. Said cylinders shall be capable of operating at 200 PSIG working pressure. Cylinders to be 1-1/2" bore x 6" and 4" long. All cylinder components shall be rated for 100,000 PSIG minimum yield. Piston rod shall be hard chromed plated and polished. All air preparation and air control equipment shall be rated for 150 PSIG working pressure.
The machine shall ride on two traction wheels and two idler wheels, such wheels to be flanged steel type for operation on the 25 pound crane rails that are included as part of the wash system. Wheels shall be suitably fitted for easy lubrication, and the traction wheels shall each be driven through a 1/3 horsepower, totally enclosed, non-ventilated SXT wash down motor. Said motor to be connected to a 100:1 gear reducer producing a travel speed of 22'-0" per minute.
The brushes shall be the segmented type with a diameter of 44" on the horizontal brush and 35" on the side brushes, and shall be fabricated from self-flagging polyethylene filaments held firmly in PVC corrosion proof split cores for ease of replacement.
Side brushes shall be driven by 1 horsepower, totally enclosed fan cooled motor, with 15:1 gear head reducers. Brush speed shall be 115 RPM. The horizontal brush shall be driven by a 3/4 horsepower, totally enclosed fan cooled motor with 15:1 gear head reducer. Said motor and reducer shall produce a 115 RPM horizontal brush speed.
Raising and lowering of the horizontal brush assembly shall be accomplished by a 3/4 horsepower, totally enclosed fan cooled electric motor with magnetically operated brake. Said motor to be connected to a 60:1 gear reducer. Slide plates for horizontal brush assembly shall be fabricated from high density polyethylene to provide constant lubrication. Horizontal brush bearings shall have an inner race of high density polyethylene to facilitate lubrication.
Provision shall be incorporated into the spray pipe and nozzle sub-assemblies to assure the application of diluted detergent to all surfaces of the vehicle during the forward pass and plain rinse water during the return pass. Components to accomplish this shall consist of a Venturi siphon unit complete with nozzles, solenoid valves, concentrate tank and tubing. In addition, another sub-assembly shall provide for the application of sprays directly to the brushes to keep them flushed and clean. Total water consumption of the machine shall be 25 gallons per minute.
A power panel in a NEMA #12 enclosure shall house all motor starters. Equipment to include a through the door mainline disconnect. All motor starting equipment shall be fuse and reset overload protected. A separate NEMA #4X control enclosure fabricated from molded fiberglass shall house the programmable controller which shall be pre-programmed in standard ladder logic (the GE Series One Plus). The door of the control panel shall have a see through window so that all inputs and outputs of the programmable controller can be monitored without opening the enclosure door. All mode selector switches including 4-way spring return joy-stick (toggle switch) shall be mounted on and through the enclosure door, the latter to permit manual control of the horizontal brush movement as well as forward and reverse control of the machine. The automatic controls provide true contour conformance and vehicle length sensing without need for track mounted limit switches. All limit switches needed for horizontal brush elevator and machine rest position shall be NEMA #6P. Emergency stop stations shall be provided on both side frames of the machine.
An overhead trolley rail with brackets and trolley suspension shall be supplied for wall mounting to support the flexible water, power and air supply lines.
The machine shall be set-up and tested in the shop and then disassembled to the extent of good shipping practice into three major assemblies.
Full or partial length galvanized tire guides shall be fabricated from 4" schedule 40 pipe with mounting pads at 3'-0" intervals. Said tire guides to be cinch anchored to the floor with 3/4" Rawl-Stud anchors.
Complete repair part information and drawings shall be supplied and accompanied by an Operating and Maintenance Manual.
The wash equipment shall be warranted against defective parts and faulty workmanship for a period of twelve months from the date of start-up. This warranty shall consist of the replacement and installation of defective assemblies or parts without cost to the owner for a period of 90 days. From 91 days to 365 days after start-up, the warranty shall consist of replacement of parts only at no cost to the owner. This warranty shall not cover malfunctions of valves due to foreign objects in the supply lines, malfunctions due to freezing, malfunctions due to maladjustments of controls because of tampering by unauthorized personnel, or malfunctions due to misuse or abuse of the equipment.
