Toro Groundsmaster 4300-D Service Manual page 159

Removing the Hydraulic Tank
Inspecting the Hydraulic Tank
Installing the Hydraulic Tank
Groundsmaster ® 4300-D
16226SL Rev C
1. Park the machine on a level surface, lower the cutting decks, shut off the
engine, set the parking brake, and remove the key from the key switch.
2. Clean the hydraulic hose ends and fittings on the hydraulic tank to prevent
contaminants from entering into the hydraulic system.
3. For assembly purposes, label all the hydraulic hoses and fittings.
4. Disconnect the hydraulic hose (item 14 in
at the bottom of the hydraulic tank, and drain the hydraulic fluid from the
tank into a suitable container.
5. Remove the remaining hydraulic hoses from the fittings on the hydraulic tank
and drain the hoses into a suitable container.
6. Install clean caps or plugs on the hydraulic hoses and fittings to prevent
system contamination.
7. Remove the hydraulic tank from the machine
8. Remove the tank strainer (item 2 in
discard the O-ring from the tank strainer.
9. If the hydraulic fittings are to be removed from the hydraulic tank, mark the
fitting orientation for assembly purposes. Remove the fittings from the tank
and discard the O-rings from the fittings.
1. Clean the hydraulic tank and tank strainer with solvent.
2. Inspect the hydraulic tank for leaks, cracks, or other damage.
1. If the hydraulic fittings were removed from the hydraulic tank, lubricate and
install new O-rings to the fittings. To properly align and install the fittings into
the tank openings, use the marks that you made during the removal process.
Tighten the fittings; refer to
Thread O-Ring Fitting into the Component Port) (page
2. Lubricate and install new tank strainer O-ring onto the strainer. Tighten the
tank strainer into the hydraulic tank and torque the strainer to 143 to 155
N∙m (105 to 115 ft-lb).
3. Install the hydraulic tank to the machine and secure the tank to the frame with
the 2 clamps (item 19 in
4. Remove the caps or plugs that were installed to the hydraulic hoses and
fittings during the removal process.
5. Use the labels that you attached during tank removal to correctly connect
the hydraulic hoses to the fittings on the hydraulic tank; refer to
Hydraulic Hose and Tube (O-Ring Face Seal Fitting) (page
6. Fill the hydraulic tank with the correct quantity of new hydraulic fluid.
7. Operate the machine. Check the hydraulic-fluid level and adjust if necessary.
8. Check the hydraulic components for leaks. Tighten any loose connections.
Figure
Figure
Installing the Hydraulic Fittings (SAE Straight
Figure 81), 2 washer-head screws, and 2 flange nuts.
Page 4–97
81) from the adapter fitting
(Figure 81).
81) from the hydraulic tank and
4–11).
Installing the
4–9).
Hydraulic System: Service and Repairs