Labrie EXPERT Maintenance Manual page 239

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13.
Carefully install the coil to the valve section, taking care to not dislodge the small plungers, and
torque the four socket head bolts to 67-75 in/lbs (7.5-8.5 Nm) in a cross-pattern.
N
: If the LabriePlus part number HYV04315 Manual Actuator is leaking from the manual lever
OTE
pivot, the actuator must be replaced; this seal is not serviceable (the LabriePlus part number
HYV04315 Manual Actuator includes the seals required for installation).
14.
Note the amount of threads exposed past the jam nut on the spool stop screws, and using the
10 mm combination wrench loosen the two spool stop screw jam nuts on the manual valve
actuator, then using a 3 mm Hex key driver remove the stop screws.
15.
Remove the four socket head bolts holding the actuator to the valve work section using a 5 mm
Hex key driver.
16.
Turn the manual actuator lever to disengage it from the valve spool, and remove the actuator.
17.
Clean the sealing surfaces of the valve work section, and inspect for cracks, abnormal wear, rust or
uneven sealing surfaces.
18.
Using an o-ring pick, remove and discard the old o-rings in the face of the actuator.
19.
Clean the seats in the actuator face and inspect for cracks, abnormal wear, rust or uneven sealing
surfaces.
20.
Using petroleum jelly, lubricate and install the new o-rings, ensuring that they are pushed fully
and evenly into their seats (see the illustrations at the end of this section for seal configuration).
21.
Carefully install the actuator to the valve section, ensuring that the valve spool is properly
attached to the manual actuator lever, and torque the four socket head bolts with a 5 mm Hex key
driver to 67-75 in-lbs (7.5-8.5 Nm) in a cross-pattern.
22.
Install the spool stop screws and adjust them to their original setting and tighten the spool stop
set screw jam nuts to 61-79 in-lbs (7-9 Nm).
N
: The LabriePlus part number 684X2120 washer seals are not included with the valve seal kits,
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and should only be resealed if any of the plugs on the back of the valve work sections are
leaking. If resealing is necessary, remove the plug and replace the washer seal on the plug,
install the plug and torque to 281-335 in-lbs (32-38 Nm).
23.
With the valve section fully assembled, ensure that the flat sealing surface is clean and inspect it
for cracks, abnormal wear, rust or uneven surfaces.
24.
Carefully lower the flat sealing surface over the tie rods and mate it to the end plate.
25.
Using an o-ring pick, remove and discard the old o-rings.
26.
Clean the seats in the o-ring seal face and inspect for cracks, abnormal wear, rust or uneven
sealing surfaces.
27.
Using petroleum jelly, lubricate and install the new o-rings, ensuring they are seated fully into
their corresponding seats (see the illustrations at the end of this section for seal configuration).
28.
Repeat steps 7 through 27 with the remaining valve work sections.
29.
Ensure that the flat sealing surface of the valve end cap is clean and inspect it for cracks, abnormal
wear, rust or uneven surfaces.
30.
Carefully lower the flat sealing surface over the tie rods and mate it to the valve work section.
General Maintenance 229

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