BEFORE YOU START...

BEFORE YOU START...

cause leaks. The clean inside surface of a corrugated

Before removing the ORBITROL from the vehicle, be

container is frequently a very adequate assembly surface.

certain that it - the entire area around it - and the

Assembly is generally easier and more satisfactory with

connecting lines are cleaned free from dirt and

clean dry parts. After parts are rinsed clean in solvent they

contamination. If the vehicle must be moved while the

may be blown dry with an air hose or placed on clean

steering control is off, you will need two 3/8 pipe elbows if

paper towel to drain and air dry.

the unit is connected with hose or four elbows and two

close nipples if it is connected with tubing. Use the fittings

If parts are thus prepared as they are removed, they

to couple the "'N" to the "OUT" line and the "L" to the "R"

are frequently ready for reassembly by the time they are

line when these are removed from the unit. If it is

needed.

necessary to remove the steering wheel, make sure to use

a wheel puller. Do not hammer the end of the shaft or the

steering wheel nut because this disrupts the upper column

The following procedure applies to all units with

bearing which is designed to allow the critical freedom

Model numbers starting with U or W. They can be

required for satisfactory function. If you must use a

identified by a one-piece housing and a check hole

hammer, order a spare bearing and snap rings first.

plug with an O-Ring at about the middle of the 0.0.

On some machines it may not be necessary to remove

the upper column. Remove the two mounting screws and

lower the entire assembly far enough to provide access to

the two screws which fasten the column to the lower unit.

Observe the shaft area of the lower unit immediately

upon removal of the column assembly. If it shows an

appreciably oil-wetted appearance this indicates that the

shaft seal may have been leaking.

If there is a functional problem or leakage at the control

end of the unit only, the disassembly of the control end of

the unit only will be required and it is generally advisable to

leave the 7-bolted end assembled.

If a complete tear down and reassembly of the unit is

planned, clean all paint and surface contamination from the

unit at points of separation. This is extremely important at

the meter end of the unit so that no paint flakes or particles

will enter these closely fitted parts as they are being

reassembled. To clean the unit adequately, first plug all

four ports, then wire brush around the meter area and rinse

and blow away all surface contamination before any

disassembly is begun.

For any disassembly, an extremely clean bench area is

necessary. Do not use shop cloths or cotton waste to wipe

or clean the parts. The lint deposited by these can disrupt

function or

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