Checking The Hydraulic Filter Service Indicators (If So Equipped) - Toro 31598 Operator's Manual

Note: Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive for
the hydraulic system oil is available in 2/3 oz (20 ml)
bottles. One bottle is sufficient for 4-6 gallons (15-22
1) of hydraulic oil. Order part no. 44-2500 from your
authorized Toro distributor.
Note: If ambient operating temperatures exceed 110°
F, contact Toro for fluid recommendations.
1. Position the machine on a level surface, lower the
cutting units, stop the engine, and remove the key.
2. On the right side of the machine, raise the access
cover to expose the hydraulic tank cap (Figure 86).
3. Clean the area around the filler neck and cap of the
hydraulic tank (Figure 86). Remove the cap from
the filler neck.
1. Hydraulic tank cap
4. Remove the dipstick from the filler neck and wipe
it with a clean rag. Insert the dipstick into the filler
neck; then remove it and check the fluid level. The
fluid level should be within the safe operating range
on the dipstick (Figure 87).
Figure 86
1. Safe operating range
5. If the level is low, add the appropriate fluid to raise
the level to the upper mark.
6. Install the dipstick and cap onto the filler neck.
7. Close the cover.
Checking the Hydraulic Filter
Service Indicators (If so
equipped)
Service Interval: Every 50 hours—Check the hydraulic
filter service indicators (2)
Note: If a filter service indicator is mounted on top of
each filter mount, check the filter indicators (Figure 88)
every 50 hours to verify that there are restrictions in the
filters. If the yellow plunger (Figure 89) in the indicator
moves to the red zone, it is time to change the filter.
Note: Check the indicator while the engine is running
at high idle and at operating temperature.
1. Hydraulic filter service indicators (2)
59
Figure 87
Figure 88