i.
Using a 1-1/4" spanner wrench, tighten the tubes (11).
j.
Install solenoid coils (10) and tube nuts (9).
5-7.6.4 Installation.
a.
Slide the studs (7) far enough out of the valve bank to permit insertion of new or repaired section (8).
b.
Install 0-rings (22) on both sides of section.
c.
Carefully slide the valve section (8) into the valve bank, being careful not to dislodge the o-rings (22).
d.
Slide the studs (7) through the valve bank and install the nuts (5) and washers (6). Torque to 125 in-lbs.
e.
Position valve bank assembly (2) on bracket (4) and install nuts (3).
f.
Reconnect electrical connections and hydraulic hoses to valve. Refer to 5-7.6.5 and adjust relief valve.
g.
Slide the valve bank assembly (2) into position in the crane base and install wing nuts (1).
5-7.6.5 Relief Valve Adjustment. Normally the relief valve will not require adjustment. However, if the valve was
disassembled for cleaning, or otherwise tampered with, or if the spring (26) is weakening, it must be adjusted. The
correct relief setting is 2500 PSI.
a.
Start the engine and engage the PTO. Operate the crane to bring any function to full open. After the cylinder is
fully extended or retracted, check pressure on pressure gauge while keeping the control full open. If the pressure
reading is not 2500 PSI, perform the following steps for adjustment.
b.
Remove the cap (23) and loosen jam nut (24).
c.
Turn the adjusting screw (25) clockwise to increase pressure and counterclockwise to decrease pressure. Adjust
to 2500 PSI.
d.
When valve is adjusted, tighten jam nut (24) and install cap (23).
5-7.7 Turret and Crane Base. (Figure 5-14)
5-7.7.1 Replacing Turntable Gear-Bearing.
a.
Position the main boom parallel with the ground. Kill the vehicle engine.
b.
Disconnect the pressure and return hoses from the valve bank. Push the hoses through the base and out of the
way.
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