Charging The Hydraulic System - Toro Greensmaster 3120 Service Manual

Priming the Hydraulic Pumps (continued)

Charging the Hydraulic System

Greensmaster 3120
17230SL Rev C
If the traction pump was rebuilt or replaced, make sure the traction
pump housing is at least half full of clean hydraulic fluid after
installation.
1. Make sure all hydraulic connections and lines are secured tightly.
2. Check the hydraulic-fluid level in the hydraulic tank and add correct type and
quantity of fluid if necessary; refer to the traction unit Operator's Manual.
3. Check control linkage for proper adjustment, binding or broken parts.
4. Disconnect both spark plug wires from the spark plugs to prevent the engine
from starting.
5. Make sure function control lever is in neutral, then turn ignition key to engage
the starter for ten (10) seconds to prime pumps. Return ignition switch to
OFF and wait one (1) minute to allow starter to cool. Engage the starter
for ten (10) seconds a second time.
6. Charge the hydraulic system; refer to
4–79).
When initially starting the hydraulic system with new or rebuilt components such
as wheel motors, gear pump, or lift cylinder, it is important that the hydraulic
system is charged properly to remove air from the system, its components, and
reduce the chance of damage.
Flush the hydraulic system whenever there is a severe component
failure or the system is contaminated; refer to
System (page 4–74)
1. Park the machine on a level surface and turn the engine OFF.
2. Ensure that all of the hydraulic connections, lines, and components are
secured tightly.
3. Ensure that the hydraulic tank is full. Add the correct quantity and type of
hydraulic fluid if necessary; refer to the traction unit Operator's Manual.
4. Check the traction control components for proper adjustment, binding, or
damaged parts.
5. Prime the hydraulic pumps; refer to
4–78).
Review and follow Jacking Instructions (page 1–7)
up the machine.
6. Raise both front wheels off the floor and support the machine.
IMPORTANT
Charging the Hydraulic System (page
IMPORTANT
Priming the Hydraulic Pumps (page
WARNING
Page 4–79
Flushing the Hydraulic
before jacking
Hydraulic System: Service and Repairs