Belt Maintenance; Servicing The Alternator Belt; Hydraulic System Maintenance; Hydraulic Fluid Specification - Toro 41594 Operator's Manual

Belt Maintenance

Servicing the Alternator Belt

Service Interval: After the first 8 hours
Every 100 hours
Check the condition and tension of the alternator/cooling
fan belt. Replace the belt as necessary.
1. Position the sprayer on a level surface, set the parking
brake, stop the pump, stop the engine, and remove the
key from the starter switch.
2. Check the tension by depressing the belt midway
between the alternator and the crankshaft pulleys with
10 kg (22 lb) of force.
Note: The belt should deflect 10 to 12 mm (0.39 to
0.47 inches). If the deflection is not correct, go to 3.
If it is correct, you may skip the remainder of this
procedure and resume operating the sprayer.
3. Loosen the bolts that secure the brace to the engine
and the bolt that secures the alternator to the brace
(Figure 74).
Figure 74
1. Alternator belt
2. Brace
4. Insert a pry bar between the alternator and the engine
and carefully pry on the alternator outward.
5. When you achieve the proper tension, tighten the
alternator and the bolts to secure the adjustment.
6. Tighten the locknut to secure the adjustment.
3. Alternator
4. Bolts
Hydraulic System
Maintenance

Hydraulic Fluid Specification

The machines reservoir is filled at the factory with
approximately 56 L (15 US gallons) of high quality hydraulic
fluid. Check the level of the hydraulic fluid before the
engine is first started and daily thereafter. The recommended
replacement fluid is as follows:
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, other
fluids may be used provided they meet all the following
material properties and industry specifications. We do not
recommend the use of synthetic fluid. Consult with your
lubricant distributor to identify a satisfactory product Note:
Toro will 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 Anti-wear Hydraulic
Fluid, ISO VG 46
Material Properties:
Viscosity, ASTM D445
Viscosity Index ASTM
D2270
Pour Point, ASTM D97
Industry Specifications:
Vickers I-286-S (Quality Level), Vickers M-2950-S
(Quality Level), Denison HF-0
Important: The ISO VG 46 Multigrade fluid has been
found to offer optimal performance in a wide range of
temperature conditions. For operation in consistently
high ambient temperatures, 18° C (65° F) to 49° C
(120° F), ISO VG 68 hydraulic fluid may offer improved
performance.
Premium Biodegradable Hydraulic Fluid-Mobil EAL
EnviroSyn 46H
Important: Mobil EAL EnviroSyn 46H is the only
synthetic biodegradable fluid approved by Toro. This
fluid is compatible with the elastomers used in Toro
hydraulic systems and is suitable for a wide-range
of temperature conditions. This fluid is compatible
with conventional mineral oils, but for maximum
biodegradability and performance the hydraulic system
should be thoroughly flushed of conventional fluid. The
oil is available in 5-gallon (19 L) containers or 55-gallon
drums from your Mobil Distributor.
Important: Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive for
the hydraulic system oil is available in 20 ml (2/3 oz)
bottles. One bottle is sufficient for 15 to 22 L (4 to 6 US
gallons) of hydraulic oil. Order part no. 44-2500 from
55
cSt @ 40°C 44 to 48
cSt @ 100°C 7.9 to 8.5
140 to 160
-34°F to -49°F