Charge Hydraulic System - Toro Reelmaster 3100-D Service Manual

Charge Hydraulic System

Reelmaster ® 3100-D/3105-D
20252SL Rev A
Note: When initially starting the hydraulic system with new or rebuilt components
such as motors, pumps, or lift cylinders, it is important that the hydraulic system
be charged properly. Air must be purged from the system and its components to
reduce the chance of damage.
Change hydraulic fluid filter whenever hydraulic components are
repaired or replaced.
1. Park machine on a level surface. Lower cutting units, disengage PTO switch.
stop engine, and engage parking brake. Remove key from the key switch.
2. Make sure all hydraulic connections, lines, and components are secured
tightly.
3. If component failure was severe or the system is contaminated, flush and
refill hydraulic system and tank (see
4. Make sure hydraulic tank is full. Add correct hydraulic fluid if necessary.
5. Prime hydraulic pumps (see
Before jacking up the machine, review and follow
Instructions (page 1–7).
6. Raise all 3 wheels off the floor and safely support the traction unit.
During initial operation, check hydraulic reservoir fluid level
frequently and add fluid as necessary.
7. Make sure traction pedal is in neutral. Sit in the operator's seat and start
engine and let it idle at low speed. The hydraulic pumps should pick up
hydraulic fluid and fill the hydraulic system. If there is no indication of fill in 30
seconds, stop the engine and determine the cause.
8. After the hydraulic system starts to show signs of fill, actuate lift control switch
until the lift cylinders move in and out several times. If the cylinders do not
move after 15 seconds or the pump emits abnormal sounds, shut the engine
off immediately and determine cause or problem. Inspect for the following:
A. Loose filter or suction lines.
B. Incorrect hydraulic hose routing.
C. Blocked suction line.
D. Faulty charge relief valve in traction pump.
E. Faulty gear pump.
9. Operate the traction pedal in the forward and reverse directions. The wheels
should rotate in the proper direction. If the wheels rotate in the wrong
direction, stop engine, remove lines from rear of hydrostat pump, and reverse
the connections.
10. Make sure that traction pedal returns to the neutral position when released
from the forward or reverse direction.
IMPORTANT
Flush Hydraulic System (page
Priming Hydraulic Pumps (page
WARNING
IMPORTANT
Page 5–69
5–65)).
5–64)).
Jacking
Hydraulic System: Service and Repairs