TSE DPT40-B, Owner'S Manual

Page: 306 / 472

saue
67
Series 90 Minor Repair 9
Components of Solenoid Override for MDC
90000363
Components of Solenoid Override with Brake
Pressure Defeat for MDC
90000364
9.3.3 Solenoid Override Valve for MDC
1. Thoroughly clean external surfaces prior to re-
moval of valve.
2. Using a 5 mm internal hex wrench, remove the two
screws and remove solenoid manifold from hous-
ing. Remove the old gasket.
3. The solenoid may be removed from the valve by
removing the nut with a 3/4 inch hex wrench. The
solenoid valve may be removed from the manifold
with a 7/8 inch hex wrench.
4. When installing the solenoid valve into the mani-
fold, the valve should be torqued to 18.6 Nm (13.8
ft•lbf). When installing the solenoid onto the valve,
torque the nut to 2.8 Nm (25 in•lbf).
5. In preparation for installing the solenoid manifold,
place a new gasket on the control housing. Install
the manifold onto the control housing, align the
gasket, and install the screws. Torque screws to
13.5 Nm (10 ft•lbf).
9.3.4 Solenoid Override Valve for MDC
with Pressure Released Brake
1. Thoroughly clean external surfaces prior to re-
moval of valve.
2. Using a 4 mm internal hex wrench, remove the
four solenoid valve mounting screws. Remove the
solenoid valve (with O-rings) from the adapter
plate.
3. Using a 4 mm internal hex wrench, remove the
four adapter plate mounting screws. Remove the
adapter plate and O-rings from the control hous-
ing.
4. Remove the check valve seat and O-ring from the
control side of the adapter plate. Remove the
check ball and spring.
5. Install a new O-ring on the check valve seat and
reassemble the check valve spring, ball, and seat
into the adapter plate.
6. Install new O-rings on the adapter plate. Place the
adapter plate into position and install the screws.
Torque the screws to 5.4 Nm (48 in•lbf).
7. Install new O-rings onto the solenoid valve as-
sembly and install the solenoid valve onto the
adapter plate. Install the screws and torque to 5.4
Nm (48 in•lbf).
CONTENTS