Toro 30308 - Adjusting the Counterbalance; Pressure

engine to r un for about fiv e min utes , then shut
it off .
10. After tw o min utes , c hec k the lev el of the
h y draulic fluid; refer to Chec king the Hy draulic
Fluid in Operation , pag e 29 .
Adjusting the
Counterbalance Pressure
F or best perfor mance , the cutting unit bounce
on unev en turf is minimal and it does not ride
hea vily o v er flat ter rain. If scalping occurs or the
cut is unev en from side to side , there ma y be too
m uc h w eight on the dec k and the w eight ma y ha v e
to be transfer red to the mac hine: i.e . increased
counterbalance pressure .
By contrast, if too m uc h w eight is transfer red to
the mac hine , the dec k will bounce ex cessi v ely and
the cut will be unev en. If the cutting unit does
not perfor m properly , adjust the counterbalance
pressure as follo ws:
1. T o mak e sure the fluid is w ar m, operate the
mac hine for 15 min utes prior to adjusting the
counterbalance pressure .
2. Ensure that the parking brak e is set, the PTO
switc h is in the Off position, and the lift lev er
is in the Float position.
3. Connect a pressure g aug e to the test por t
behind the left lift cylinder ( Figure 67 ).
Figure 67
1. Test port
2. Left lift cylinder
4. Loosen the jam n ut at the bottom of the lift
v alv e ( Figure 68 ). T he lift v alv e is located on
the right side of the mac hine .
Figure 68
1. Lift valve 3. Spool
2. Jam nut
5. Star t the engine and set the throttle to high idle .
6. Using an Allen wrenc h, adjust the lift v alv e
spool until the desired pressure is attained
on the g aug e . See the c har t belo w for the
recommended pressure setting for the cutting
dec k.
Cutting Deck
Counterbalance
Pressure
52in Side Discharge Deck
(Model 30555)
100 psi
60in Side Discharge Deck
(Model 30366) or 62in
Rear Discharge Deck
(Model 30367) or 62in
Guardian Recycler Deck
(Model 30376)
175 psi
72in Side Discharge Deck
(Model 30368) or 72in
Rear Discharge Deck
(Model 30369) or 72in
Guardian Recycler Deck
(Model 30379)
220 psi
7. Stop the engine .
8. Tighten the jam n ut on the lift v alv e . T or que
the n ut to 10–12 ft.-lb .
9. R emo v e the pressure g aug e from the test por t.
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