Toro Workman 07390H Operator's Manual page 28

This position is similar to the L
B
COUPLER POSITION
to quick coupler B, except that the lever is held in
this position by a detent lever in the control panel.
This allows hydraulic fluid to flow continuously to
equipment that use a hydraulic motor.
Use this position only on attachments with a
hydraulic motor attached.
Important:
If you use it with a hydraulic
cylinder or no attachment, the O
causes the hydraulic-fluid flow to go over a
relief valve, which can damage the hydraulic
system. Use this position only momentarily or
with a motor attached.
Important:
Check the hydraulic-fluid level
after installation of an attachment. Check the
operation of the attachment by cycling the
attachment several times to purge air from
the system, then check hydraulic-fluid level
again. The attachment cylinder slightly affects
the fluid level in the transaxle. Operating the
machine with a low hydraulic-fluid level can
damage the pump, remote hydraulics, power
steering, and machine transaxle.
Connecting the Quick Couplers
Important:
Clean dirt from the quick couplers
before connecting them. Dirty couplers can
introduce contamination into the hydraulic
system.
1. Pull back the locking ring on the coupler.
2. Insert the hose nipple into the coupler until it
snaps into position.
Note:
When attaching remote equipment to the quick
couplers, determine which side requires pressure,
then attach that hose to quick coupler B, which has
pressure when you push the control lever forward or
locked in the O position.
N
Disconnecting the Quick Couplers
Note:
With both the machine and attachment shut
off, move the lift lever back and forth to remove the
system pressure and ease the disconnection of the
quick couplers.
1. Pull back the locking ring on the coupler.
2. Pull the hose firmly from the coupler.
Important:
Clean and install the dust plug
and dust covers to the quick coupler ends
when not in use.
(
OWER QUICK
). It also directs hydraulic fluid
position
N
Troubleshooting the Hydraulic
Control
•
Difficulty in connecting or disconnecting quick
couplers.
The pressure is not relieved (the quick coupler is
under pressure).
•
The power steering is turning with great
difficulty or it is not turning at all.
– The hydraulic-fluid level is low.
– The hydraulic-fluid temperature is too hot.
– The pump is not operating.
•
There are hydraulic leaks.
– The fittings are loose.
– The fitting is missing the O-ring.
•
An attachment does not function.
– The quick couplers are not fully engaged.
– The quick couplers are interchanged.
•
There is a squealing noise.
– Remove the valve left in the O
causing hydraulic fluid to flow over the relief
valve.
– The belt is loose.
•
The engine does not start.
The hydraulic lever is locked in the F
position.
28
position detent,
N
ORWARD