Toro Reelmaster 5510 Series, Service Manual

Page: 319 / 662

Servicing a Control Manifold Cartridge Valve (continued)
IMPORTANT
Particles as fine as talcum powder can affect the operation of
high-pressure hydraulic valves.
If the cartridge design allows, use a wood or plastic probe to
press the internal spool in and out for 20 to 30 times to flush out
contamination.
Ensure that you do not damage the cartridge. Use the compressed
air for cleaning.
7. Install the cartridge valve as follows:
A. Lubricate the new seal kit components with clean hydraulic fluid and
install them onto the valve.
B. Install the O-rings, sealing rings, and back-up rings correctly on the
cartridge valve for proper operation and sealing.
IMPORTANT
Carefully handle the valve cartridge. Slight bending or distortion
of the stem tube can cause binding and malfunction. When
installing the cartridge valve into the control manifold, ensure
that the deep well socket fully engages the valve base.
C. Turn the cartridge valve carefully into the manifold port until the top O-ring
is met. The valve should go in easily without binding.
D. Use a deep well socket and torque the cartridge valve to the values
identified in control manifold illustration.
8. If the solenoid coil was removed from the cartridge valve, do the following
steps:
A. Carefully install the coil onto the valve.
IMPORTANT
Overtightening the nut can damage the solenoid or cause valve
malfunction. Do not overtighten the nut.
B. Install the nut and torque the nut to 6.8 N∙m (60 in-lb) .
9. If the problems still exist, remove the valve and clean it again or replace
the valve.
Reelmaster ® 5410/5510/5610 Series Page 6–201 Hydraulic System: Service and Repairs
15216SL Rev C