Servicing The Hydraulic System - Toro Sitework Systems Dingo 322 Operator's Manual

Servicing the Hydraulic
System
Replacing the Hydraulic Filter
Change the hydraulic filter:
After the first 8 operating hours.
After every 200 operating hours.
1. Position traction unit on a level surface.
2. Raise the loader arms and install the cylinder
locks; refer to Using the Cylinder Locks,
page 22.
3. Stop the engine and remove the key.
4. Remove the hood, refer to Removing the Hood,
page 26.
IMPORTANT: Do not substitute an
automotive oil filter or severe hydraulic
system damage may result.
5. Place a drain pan under the filter.
6. Remove the old filter and wipe the filter adapter,
gasket surface clean.
7. Apply a thin coat hydraulic fluid to the rubber
gasket on the replacement filter (Fig. 29).
8. Install the replacement hydraulic filter onto the
filter adapter. Tighten it clockwise until the
rubber gasket contacts the filter adapter, then
tighten the filter an additional 1/2 turn (Fig. 29).
9. Clean up any spilled fluid.
10. Start the engine and let it run for about two
minutes to purge air from the system.
11. Stop the engine and check for leaks.
12. Check the fluid level in the hydraulic tank (refer
to Checking the Hydraulic Fluid, page 16) and
add fluid to raise the level to the mark on the
dipstick. Do not over fill the tank.
1
2
Figure 29
1. Hydraulic filter
2. Gasket
13. Install the hood; refer to Installing the Hood,
page 26.
14. Remove and store the cylinder locks (refer to
Using the Cylinder Locks, page 22) and lower
the loader arms.
Changing the Hydraulic Fluid
Change the hydraulic fluid after every 400 operating
hours or yearly.
1. Position traction unit on a level surface.
2. Raise the loader arms and install the cylinder
locks; refer to Using the Cylinder Locks,
page 22.
3. Stop the engine and remove the key.
4. Remove the hood; refer to Removing the Hood,
page 26.
IMPORTANT: Do not substitute automotive
oil or severe hydraulic system damage may
result.
5. Place a large drain pan under the traction unit
that can hold at least 17 gal. (67 l).
6. Remove the drain plug from the bottom of the
hydraulic tank and allow the fluid to completely
drain out.
7. Install the drain plug.
Maintenance
3
3. Adapter
33