Section 1 - General Information
Hydraulic Manifold Repair
Page 1-8
Service Manual
1-7 H
YDRAULIC
M
ANIFOLD
R
EPAIR
R
E M O V A L
Refer to the
Service and Repair
section for model specific information.
1. Disconnect the battery.
2. Tag and disconnect the solenoid valve leads.
3. Tag, disconnect, and plug hydraulic hoses.
4. Remove the bolts that hold the manifold to the mounting bracket.
5. Remove the manifold block.
D
I S A S S E M B L Y
NOTE:
Mark all components as they are removed so as not to confuse their location during assembly.
1. Remove coils from solenoid valves.
2. Remove valves.
3. Remove fittings, plugs, springs, balls, and orifices.
C
L E A N I N G
A N D
I
N S P E C T I O N
1. Wash the manifold in cleaning solvent to remove built-up contaminants, then blow out all passages 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 oper-
ation.
4. Replace parts and O-rings found unserviceable.
A
S S E M B L Y
Refer to the
Service and Repair
section for assembly drawings, and the
Parts Manual
for illustrated parts
breakdowns.
NOTE:
Lubricate all O-rings before installation to prevent damage to O-rings. Seat all balls in manifold block by lightly
tapping on the ball with a brass drift punch.
1. Install fittings, plugs, springs, balls, and orifices. Use one drop of Locktite #242 on each screw-in orifice.
2. Install valves.
I
N S T A L L A T I O N
Refer to the
Service and Repair
section for model specific information.
1. Attach manifold assembly to mounting plate with bolts.
2. Connect solenoid leads (as previously tagged).
3. Connect hydraulic hoses. Be certain to tighten hoses to manifold.
4. Reconnect the battery.
5. Operate each hydraulic function and check for proper operation and leaks.
6. Adjust valve pressures according to the
Service and Repair
section.
