Checking The Gearbox Oil; Changing The Gearbox Oil; Inspecting/Adjusting The Drive Chain - Toro ProCore SR54 Operator's Manual

Checking the Gearbox Oil

Service Interval: Every 50 hours
The gearbox is filled with 80W–90 gear oil or
equivalent. Allow the gearbox to cool before checking
the oil level.
1. Clean debris from the fill plug and check plug
to avoid contamination.
2. Remove the check plug from the gearbox
(Figure 47).
Note:
If the gearbox has 2 check plugs, use
the lower plug.
Figure 47
1. Vent/Fill plug
2. Check plug
3. Ensure that oil is up to the bottom of the check
plug hole in the gearbox
4. If the oil level is low, remove the vent/fill plug
from top of the gearbox and replenish the oil as
required.
5. Install the plugs.

Changing the Gearbox Oil

Service Interval: After the first 50 hours
Every 500 hours
The gearbox is filled with 80W-90 gear oil or
equivalent.
1. Clean debris from vent/fill plug and drain plug to
avoid contamination
3. Drain plug
(Figure 47).
(Figure 47).
2. Remove the vent/fill plug to relieve air draw.
3. Position a drain pan under the drain plug and
remove the plug.
Note:
The high viscosity of cool oil will extend
the drain time (approximately 30 minutes).
4. After the oil is completely drained, reinstall the
drain plug.
5. Fill the gearbox with high quality 80W-90 gear
oil. Use the following chart to determine the
gearbox oil capacity.
Model
SR54
SR54-S
SR70
SR70-S
SR72
6. Install the vent/fill plug.
7. Check the oil level and replenish as required.
Inspecting/Adjusting the
Drive Chain
Service Interval: Before each use or daily
Every 50 hours
Check the drive chain for damage and correct
adjustment. The chain should have approximately 13
mm (1/2 inch) of overall deflection (6 mm [1/4 inch] in
each direction).
g010862
Chain tension can be adjusted by slightly loosening
the main jam nut and tightening the jam rod to desired
position (Figure 48
chain tension when the chain is hot or warm.
31
Gear Case Capacity
1.9 L (2 US qt)
1.9 L (2 US qt)
1.9 L (2 US qt)
1.9 L (2 US qt)
3.8 L (4 US qt)
or Figure 49). Do not adjust the