Gearbox Fluid; Changing Gearbox Fluid - Toro 74191 Operator's Manual

Gearbox Fluid

Change fluid:
After initial 100 operating hours.
Note: Fluid will not have to be changed
again after initial 100 hour fluid
change.
Fluid Type: Automatic Transmission Fluid
(Dexron III or equivalent)
IMPORTANT: Do not mix fluids. Use only
Automatic Transmission Fluid.
Gearbox Capacity: 5–1/2 oz. (129.6 ml) each box
Check fluid: After every 100 operating hours.

Changing Gearbox Fluid

The gearbox fluid must be changed after first 100
operating hours. Change all three gearboxes.
IMPORTANT: Do not mix fluids. Use only
Automatic Transmission Fluid.
1. Warm the fluid in gearbox. Run the mower deck
for a few minutes.
2. Remove two shields that cover gearbox and PTO
shaft (Fig. 31).
1
3
Figure 31
1. Gearbox Sheild
2. PTO Shield
3. Raise deck to upright position.
2
3
4
3. Screw
4. Nut
4. With deck raised, remove plug on the bottom
side of the gearbox. Let fluid fully drain into a
pan. (Fig. 32).
5. Reinstall the bottom plug into the gearbox
(Fig. 32).
6. Remove the top plug to fill gearbox (Fig. 32).
7. Fill gearbox with 5–1/2 (129.6 ml) ounces of
automatic transmission fluid (Dexron III or
equivalent).
8. Reinstall the top plug into the gearbox (Fig. 32).
9. Repeat for remaining gearboxes.
2
3
Figure 32
1. Gearbox
2. Top plug
Maintenance
2
3
1
4
3. Side plug
4. Bottom plug
3
1
4
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