Toro GreensPro 1240 Service Manual page 56

Hydraulic System (GreensPro 1260) (continued)
Hydraulic System: General Information
The traction circuit of the GreensPro 1260 machines is a closed loop system that
includes the hydraulic pump, hydraulic motor, hydraulic tank, hydraulic fluid filter,
and a series of hydraulic hoses
traction circuit (e.g., hydraulic pump or hydraulic motor), unwanted material
and contamination from the damaged component will circulate throughout the
traction circuit. This contamination can damage other components in the circuit,
so remove the contamination to prevent additional component failure.
The recommended method to remove contamination from the traction circuit is
to temporarily install a Toro high flow hydraulic fluid filter into the circuit; refer to
High Flow Hydraulic Filter Kit (page
the filter should be installed before connecting hydraulic test gauges to test
traction circuit components or after replacing a failed traction circuit component.
The filter will ensure that contaminates are removed from the closed-loop
traction circuit, preventing additional component damage. Refer to
the Closed-Loop Traction Circuit (GreensPro 1260) (page 5–39)
information on using the Toro high flow hydraulic fluid filter.
Note: If traction circuit contamination exists, the traction pump drain could allow
contaminates to enter the hydraulic tank.
The alternative to using the Toro high flow hydraulic filter kit after a traction circuit
component failure would be to disassemble, drain and thoroughly clean all the
components, the hydraulic tank, and the hydraulic tubes and hoses in the traction
circuit. If any debris remains in the traction circuit and the machine is operated,
the debris can cause additional circuit component failures.
(Figure 13). If a component failure occurs in the
2–13). If a traction circuit failure is suspect,
Page 5–10
Filtering
for additional
GreensPro ™ 1240/1260
14211SL Rev A