Page 3-14
Maintenance 3.13 - Hydraulic Manifold
MX15/19
3.13 H
YDRAULIC
M
ANIFOLD
It is not necessary to remove the manifold to perform all maintenance procedures. Decide before-
hand as to whether or not the manifold should be removed before maintenance procedures begin.
R
EMOVAL
1. Make sure that the platform is completely lowered.
2. Tag and disconnect the solenoid valve wires.
3. Place a container of adequate capacity (approximately 1 gallon (3.79 L)) beneath the valve
block to catch the oil. Tag, disconnect, and plug hydraulic hoses.
4. Remove the bolts that hold the manifold to the mounting bracket, being careful not to dam-
age the ground wires.
5. Remove manifold block.
D
ISASSEMBLY
NOTE: Mark all components as they are removed so as not to confuse their location during assembly.
Refer to Figure 3-18 often to aid in disassembly and assembly.
1. Remove coils from solenoid valves.
2. Remove spool valve covers and spool valves.
3. Remove solenoid valves, relief valves, and counterbalance valves.
4. Remove fittings and plugs.
C
LEANING AND
I
NSPECTION
1. Wash the manifold in cleaning solvent to remove built up contaminants, then blow out all pas-
sages with clean compressed air.
2. Inspect the manifold for cracks, thread damage, and scoring where O-rings seal against
internal and external surfaces.
3. Wash and dry each component and check for thread damage, torn or cracked O-rings, and
proper operation.
4. Replace parts and O-rings found unserviceable.
A
SSEMBLY
NOTE: Lubricate all O-rings before installation to prevent damage to O-rings. Refer to Table 3-1
(Page 3-26) for the proper torque values when installing any hydraulic component.
1. Install fittings and plugs.
2. Install counterbalance valves, relief valves, solenoid valves, and spool valves.
3. Install coils on solenoid valves.
I
NSTALLATION
NOTE: Refer to Table 3-1 on Page 3-26 for the proper torque values when installing any hydraulic
component.
1. Attach manifold assembly to mounting brackets with bolts.
2. Connect solenoid leads (as previously tagged).
3. Connect hydraulic hoses. Be certain to tighten hoses to manifold.
4. Operate each hydraulic function and check for proper function and leaks.
5. Check the level of the hydraulic fluid in the tank.
6. Adjust all hydraulic pressures according to instructions on Page 3-12.
To Next Page
Loading...
Need help?
General
