Hydraulic System Maintenance; Servicing The Hydraulic System - Toro 74448 Operator's Manual

Figure 49
1. Clevis pin in slot
2. Nut
3. Nut-Left hand thread
4. Adjustment bolt
5. Pump rod
7. Check where the control lever is relative to the notch
in the console (Figure 48). It should be centered,
allowing the lever to pivot outward to the neutral
lock position.
8. If adjustment is needed, loosen the nut and jam nut
against the yoke (Figure 49).
9. Apply slight rearward pressure on the motion control
lever, and turn the head of the adjustment bolt in
the appropriate direction until the control lever is
centered in the neutral lock position.
Note: Keeping rearward pressure on the lever will
keep the pin at the end of the slot and allow the
adjustment bolt to move the lever to the appropriate
position.
10. Tighten the nut and jam nut (Figure 49).
11. Repeat on the opposite side of machine.
6. Double nuts
7. Jam nut
8. Yoke
9. Ball joint
Hydraulic System
Maintenance
Servicing the Hydraulic
System
Checking the Hydraulic Fluid
Service Interval: After the first 8 hours
Every 25 hours
Fluid Type: Mobil 1 15W-50 synthetic motor oil or
equivalent synthetic oil.
Hydraulic System Oil Capacity: 67 ounces (2.0 l)
Important: Use oil specified or equivalent. Other
fluids could cause system damage.
Note: There are two ways of checking the hydraulic oil.
One is when the oil is warm and one is when the oil is
cold. The baffle inside the tank has two levels depending
if the oil is warm or cold.
1. Position the machine on a level surface and set the
parking brake.
2. Clean the area around filler neck of hydraulic tank
(Figure 50).
3. Remove the cap from the filler neck. Look inside to
check if there is fluid in the reservoir (Figure 50).
4. If there is no fluid, add fluid to the reservoir until it
reaches the cold level of the baffle.
5. Run the machine at low idle for 15 minutes to allow
any air to purge out of the system and warm the
fluid. Refer to Starting and Stopping the Engine in
Operation , page 12.
6. Recheck the fluid level while the fluid is warm. The
fluid should be between cold and hot.
7. If required, add fluid to the hydraulic tank.
Note: The fluid level should be to the top of the hot
level of the baffle, when the fluid is hot (Figure 50).
8. Install the cap on filler neck.
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