Adjust Control Valve Linkage - Woods BH85 Operator's Manual

a large screwdriver. Inspect seat in valve housing for
any dirt or damage. Replace load check if required.
Spool Repair
Whenever repairing spools or positioner, replace valve
spool seals which are included in the spool seal repair
kit.
Disassemble
Remove the joystick assembly and/or single lever con-
trol from valve. Remove the plastic dust cap from posi-
tioner (3, 4). Unscrew the positioner assembly from
valve housing. Push spool (1, 2) out of housing.
Secure spool in vise taking care not to scratch or nick
the outer surface. Unscrew the positioner from spool.
Remove brass sleeve (15) and O-ring (16) from posi-
tioner end of valve housing. Remove O-ring (16) and
flange washer (17) from control lever end of valve
housing. The boom spool has a special sleeve with two
O-rings.
Check spools, replace if nicked and scratched.
A. Valve - 6 Spool MBLK 2465 PSI
1. Spool 4 position float
2. Spool 3 position
3. Spool pos cont asy 4 pos
4. Spool pos cont asy 3 pos
5. Control asy-stabilizer
6. Valve relief 2465 psi
7. Valve relief 2610 psi
8. Valve relief / anti-cav 2465 psi

ADJUST CONTROL VALVE LINKAGE

Reconnect control linkage to valve.
Control handles should be positioned as shown. Refer
to parts list on page 40 for details.
26 Dealer Service
9. Valve relief / anti-cav 3045 psi
10. Plug, 3/4 SAE M w/ o-ring
11. Valve load check asy
12. Handle control-stabilizer
13. Plug - PBY(if required)
14. Sleeve w/ o-rings (boom spool
only)
Figure 20. BH85 & BH100 Control Valve Assembly
Carefully inspect spool bore in valve housing. If deep
scratches or scouring is present, entire valve should be
replaced.
Assemble
Clean threads on positioner and spool. Apply a remov-
able-type thread locking compound to male threads
and assemble positioner to spool. Torque to 85±15 in-
lbs.
Apply clean oil to O-ring (16) and install, along with
brass sleeve (15) on spool housing positioner end.
Slide spool into valve housing. Torque positioner end
cap (3, 4) to 70±15 in-lbs.
Reassemble the O-ring (16) and flanged washer (17)
on control lever end of spool. Boom spool does not use
a flange washer.
Position spool wipers (A) (Figure 18) on swing, dipper,
and bucket spools in linkage plate. Reinstall control
linkage. Note the screws installed in the boom and dip-
per spools should be tightened until snug, then backed
off approximately ½ turn to allow free movement of the
joystick.
15. Sleeve, lower
16. O-ring
17. Flange washer
When completing a maintenance function on the valve,
perform a functional test by placing control handles in
their various positions and make certain the correct
operation occurs corresponding to the decals on the
MAN1272 (10/22/2019)