Hydraulic System Maintenance; Service The Hydraulic System; Check The Hydraulic Oil Overheat Warning System - Toro CT2120 30655 Operator's Manual

Hydraulic System
Maintenance
WARNING
Hydraulic fluid escaping under pressure can
penetrate skin and cause injury.
• Make sure all hydraulic fluid hoses and lines are
in good condition and all hydraulic connections
and fittings are tight before applying pressure to
the hydraulic system.
• Keep your body and hands away from pin
hole leaks or nozzles that eject high pressure
hydraulic fluid.
• Use cardboard or paper to find hydraulic leaks.
• Safely relieve all pressure in the hydraulic system
before performing any work on the hydraulic
system.
• Get immediate medical help if fluid is injected
into skin.

Service the Hydraulic System

Service Interval: Every 500 hours
Note: Keep water away from electrical components.
Use a dry cloth or brush to clean such areas.
This procedure is best carried out when the hydraulic oil
is warm (not hot). Lower the cutterheads to the ground
and drain the hydraulic system.
1. Remove the oil tank filler flange to gain access to
the suction strainer.
2. Unscrew and remove the strainer and clean with
paraffin or petrol before installing.
3. Install the return line oil filter element.
4. Install the transmission oil filter element, refer
to Changing the Transmission Oil Filter (page 39).
5. Install the drain plug and refill the hydraulic tank
with fresh clean hydraulic oil of the recommended
grade, refer to Specifications (page 18).
6. Run the machine and operate all hydraulic systems
until the hydraulic oil is warm.
7. Check the oil level and top up as necessary to the
upper mark on the sight level gauge.
1
3
1. Oil tank filter
2. Suction strainer
Check the Hydraulic Oil
Overheat Warning System
Service Interval: Every 500 hours
1. Temperature switch
1. Turn the ignition key to the ignition on position I.
2. Disconnect the red/blue wire terminal from the
hydraulic tank temperature switch.
3. Touch the metal terminal of the wire onto a suitable
earth point, ensuring that the metal surfaces make
good contact.
The horn will sound and the hydraulic oil temperature
warning light will illuminate to confirm correct
operation. If necessary, make repairs before operating
the mower.
45
2
G014452
Figure 63
3. Filler strainer cap
1
G014439
Figure 64
2. Hydraulic oil tank