3-Way Valve Assembly
The 3-way valve assembly is a manually operated
hydraulic flow of the emergency stowage pump, all
ball valve used to direct flow to either the crane hoist
craning functions can not be supplied at the same
functions or telescope and lift functions during
time. It is therefore necessary to reposition the valve
emergency stowage operations. Due to the limited
control lever to operate the different functions.
Remove adapters (9 and 11) from 3-way valve
(5), and adapter (10) from check valve (12). Cap or
Ensure battery disconnect switch is in OFF
plug all openings.
Remove check valve (12) and adapters (13
Remove screw (1, Figure 2-15-1) and lever (2)
and 14) from 3-way valve (5). Cap or plug all
from 3-way valve (5).
Remove screws (3), washers (4), and 3-way
valve (5) from mounting plate.
Install adapters (13 and 14, Figure 2-15-1) and
check valve (12) in 3-way valve (5).
Install adapters (9 and 11) in 3-way valve (5),
Do not attempt to loosen fittings in
and adapter (10) in check valve (12).
pressurized lines or while hydraulic
pumps are in operation.
Connect hydraulic hoses (6, 7, and 8) to
adapters (9, 10, and 11) and remove tags.
Install 3-way valve (5) on mounting plate with
Ensure that all hydraulic systems are
washers (4) and screws (3).
shut down and the pressure is relieved.
Install lever (2) on 3-way valve (5) with screw
Tag and disconnect hydraulic hoses (6, 7, and
8) from adapters (9, 10, and 11). Cap or plug all
Operate emergency stowage system. Check 3-way
valve for proper operation and any leakage.