Operation and maintenance manual

Section 250-0090
Braking System - Directional Control Valve
SM 2254 11-03
4
8. Repeat all braking and engine shut down cycles
several times and check for appropriate application/
release cycle several times. Check for appropriate
warning light indications.
9. Check all connections again for leaks and tighten
as required. Check hydraulic oil tank level and
replenish as required.
MAINTENANCE
Inspect directional control valve assembly for leaks.
If leaks are found, replace seals with seal kit listed in
the vehicle parts book. Inspect hydraulic lines for
wear and leaks. Replace/tighten lines as required.
SPECIAL TOOLS
There are no special tools required for the
procedures outlined in this section. Refer to Section
300-0070, SERVICE TOOLS, for part numbers of
general service tools required. These tools are
available from your dealer.
2. Remove blanking caps from hydraulic lines and
fittings and connect to directional control valve as
recorded at removal.
3. Secure cover plate to the cradle assembly with
mounting hardware removed at removal.
4. Check oil level in hydraulic tank and add oil as
required. Refer to Section 230-0040, HYDRAULIC
TANK, for correct fill level and Section 300-0020,
LUBRICATION SYSTEM, for oil specification.
5. Place the battery master switch in the 'On'
position, remove all wheel blocks, start the engine
and bring hydraulic fluid to operating temperature.
6. Apply all brakes in sequence. Check directional
control valve for leaks and tighten connections as
required.
7. Shut off engine and make sure a full service brake
application is made followed by a parking brake
application.
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