Checking The Cooling System; Checking The Hydraulic System - Toro 30839 Operator's Manual

Checking the Cooling System

Service Interval: Before each use or daily
Clean debris off of the radiator and oil cooler daily
(Figure 23). Clean the radiator hourly if conditions are
extremely dusty and dirty; refer to Cleaning the Engine
Cooling System.
Figure 23
1. Access panel
2. Radiator
The cooling system is filled with a 50/50 solution of
water and permanent ethylene glycol anti-freeze. Check
the coolant level at the beginning of each day before
starting the engine.
The capacity of the cooling system is approximately
6 qt (5.7 l).
CAUTION
If the engine has been running, the pressurized,
hot coolant can escape and cause burns.
• Do not open the radiator cap when the engine
is running.
• Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.
1. Check the coolant level in the expansion tank
(Figure 24). With a cold engine, the coolant level
should be approximately midway between the marks
on the side of the tank.
2. If the coolant level is low, remove the expansion
tank cap and replenish the system. Do not overfill.
3. Install the expansion tank cap.
3. Oil cooler
1. Expansion tank
Checking the Hydraulic
System
Service Interval: Before each use or daily—Check the
hydraulic fluid level.
The machines reservoir is filled at the factory with
approximately 3.5 U.S. gallons (13.2 l) 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 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. Toro
does 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
Note: Many hydraulic fluids are almost colorless,
making it difficult to spot leaks. A red dye additive for
the hydraulic system oil is available in 2/3 oz. (20 ml)
24
Figure 24
cSt @ 40°C 44 to 48
cSt @ 100°C 7.9 to 8.5
140 to 160
-34°F to -49°F