Toro Groundsmaster 3280-D Service Manual page 219

Servicing the Manifold (continued)
Installing the Counterbalance Valve Manifold
Groundsmaster ® 3280-D/3320
05138SL Rev B
5. Lubricate new valve seal kit components with clean hydraulic fluid and install
on valves. The O-rings, sealing rings, and backup rings must be arranged
properly on the valves for proper operation and sealing.
6. Thread valves carefully into correct manifold port. The valves should go
in easily without binding. Using a deep socket, torque valves to values
identified in Figure
1. Coat new O-rings lightly with clean hydraulic fluid. Install all removed
hydraulic fittings with new O-rings to the manifold.
2. Position counterbalance valve manifold to machine frame. Secure manifold
to machine with 2 bolts and 2 flange nuts.
3. Remove all caps or plugs from hydraulic hoses and fittings.
4. Connect hydraulic hoses to hydraulic fittings on manifold.
5. Install fuel tank to machine; refer to
Installing the Fuel Tank (page
6. Check hydraulic fluid level in reservoir (front axle) and adjust as necessary;
refer to the Traction Unit Operator's Manual.
7. Operate the machine functions slowly until air is out of system; refer to
Charging the Hydraulic System (page
8. Check counterbalance valve adjustment; refer to the Traction Unit Operator's
Manual.
107.
Installing the Fuel Tank (page 3–11)
4–17).
5–85).
Page 5–135 Hydraulic System: Service and Repairs
or