Replacing The Hydraulic Filter; Changing The High-Flow Hydraulic Fluid And Filter - Toro 07384 Operator's Manual

11. Check the hydraulic-fluid level and replenish it,
if required.
Important:
Use only the hydraulic fluid specified.
Other fluids could damage the system.
Replacing the Hydraulic
Filter
Service Interval: After the first 10 hours
Every 800 hours
Important:
Use of any other filter may void the
warranty on some components.
1. Park the machine on a level surface, engage the
parking brake, shut off the engine, and remove
the key.
2. Clean the area around the filter-mounting area.
3. Place a drain pan under the filter and remove
the filter (Figure 72).
Figure 72
1. Hydraulic filter
4. Lubricate the gasket on the new filter.
5. Ensure that the filter mounting area is clean.
6. Screw the filter on until the gasket contacts the
mounting plate, and tighten the filter 1/2 turn.
7. Start the engine and let it run for about 2 minutes
to purge air from the system.
8. Shut off the engine and check the hydraulic-fluid
level and for leaks.
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2. High-flow hydraulic filter
Changing the High-Flow
Hydraulic Fluid and Filter
TC Models Only
Service Interval: After the first 10 hours—Change
the high-flow hydraulic fluid filter
(TC models only).
Every 800 hours—Change the high-flow
hydraulic fluid and filter (TC models only).
Hydraulic-fluid capacity: approximately 15 L (4 US
gallons)
Hydraulic-fluid type: Toro Premium All Season
Hydraulic Fluid (Available in 5 gallon pails or 55
gallon drums. See parts catalog or Toro distributor for
part numbers.)
Alternate fluids: If the Toro fluid is not available,
another conventional petroleum–based fluid may
be used provided it meets the following material
properties and industry specifications. Consult with
your lubricant distributor to identify a satisfactory
product.
Note:
Toro does not assume responsibility for
damage caused by improper substitutions, so use
only products from reputable manufacturers who will
stand behind their recommendation.
High Viscosity Index/Low Pour Point Antiwear
Hydraulic Fluid, ISO VG 46
Material Properties:
•
Viscosity—ASTM D445 cSt @ 40ºC: 44 to 48/cSt
@ 100ºC: 7.9 to 8.5
•
Viscosity Index, ASTM D2270—140 to 152
•
Pour Point, ASTM D97— -35ºF to -46ºF
•
FZG, Fail stage—11 or better
•
Water content (new fluid)—500 ppm (maximum)
Industry Specifications:
Vickers I-286-S, Vickers M-2950-S, Denison HF-0,
Vickers 35 VQ 25 (Eaton ATS373-C)
Note:
Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive for
the hydraulic system fluid is available in 20 ml (0.67
oz) bottles. A bottle is sufficient for 15 to 22 L (4 to 6
US gallons) of hydraulic fluid. Order Part No. 44-2500
from your authorized Toro distributor.
Note:
If the fluid becomes contaminated, contact
your local Toro distributor because the system must
be flushed. Contaminated fluid may look milky or
black when compared to clean fluid. The service
interval may need to be increased if using multiple
attachments as the fluid may become contaminated
quicker with the mixing of different hydraulic fluids.
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