Quick Coupler Operation; Remote Hydraulic Control Trouble Shooting - Toro 07213TC Operator's Manual

Liquid-cooled diesel utility vehicle
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CAUTIOIN
Use caution when moving lever to the float position
because it will allow rear implement to lower
unimpeded.
Important
Check hydraulic oil level after
installation of attachment. Check operation of
attachment by cycling attachment several times to
purge air from system, then recheck hydraulic oil
level. Attachment cylinder will slightly affect transaxle
oil level. Operation of vehicle with low oil level can
damage pump, remote hydraulics, power steering and
vehicle transaxle.
CAUTION
Hydraulic fluid escaping under pressure can have
sufficient force to penetrate skin and do serious
damage. Care must be used when connecting or
disconnecting hydraulic quick couplers. Stop engine,
apply parking brake, lower attachment and place
remote hydraulic valve in float detent position to
relieve hydraulic pressure be fore connecting or
disconnecting quick couplers.

Quick Coupler Operation

CONNECTION
Important
Clean dirt from quick couplers before
connecting. Dirty couplers can introduce
contamination to hydraulic system.
Insert hose nipple into coupler until it snaps into
position.
Note: When attaching remote hydraulic cylinders to
the quick couplers, determine which side of the remote
cylinder requires pressure, then attach that hose to
quick coupler "B". Only connect double acting
cylinders (two hoses).
DISCONNECTION
Pull hose firmly from coupler
Important
Clean and install dust plug and dust
covers to quick coupler ends when not in use.
Remote Hydraulic Control
Trouble Shooting:
A. Difficulty in connecting or disconnecting quick
couplers.
Pressure not relieved (Quick coupler under
pressure).
Engine running. Remote hydraulic valve not
placed in float.
B. Power steering hard. Remote valve not in neutral
or float position. Remote hydraulic valve linkage
out of adjustment.
Hydraulic oil level low.
Hydraulic oil hot.
C. Hydraulic leaks. Fittings loose. Fitting missing o-
ring.
D. Attachment does not function. Quick couplers not
fully engaged. Quick couplers are interchanged.
E. Squealing noise. Remote valve left in ON detent
position causing hydraulic oil to flow over relief
valve.
33

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