Toro 91764SL User Manual

X 

Each line on the Logic Chart shows the combination of 
switch conditions that must be made for the listed action 
to occur. Example - START, under ACTIONS: For the 
engine to start the Key Switch must be moved to Start 
(making terminals B + I + S) and the hydraulic pump 
must be in Neutral (neutral switch CLOSED). 

O 

⊗ 

levent 

Switch Closed

Switch Open 

Switch Closed Momentarily 

Switch Conditon Not Re

St

a

rt

 -

 Ke

y 

Swit

ch 

B 

+ I 

+ S 

R

un 

-

Ke

y S

w

it

ch 

B + I

 + A

 /

 X 

+ Y 

Neutral Switch (HJ30

00 o

n

ly) 

Oil Pre

ssu

re Swit

ch 

W

a

te

r Pre

ssu

re Swit

ch 

Pum

p St

art Limit Switch 

Lift Li

mit S

w

it

c

h 

T

ran

sport Swi

tc

h

 (HJ30

00 o

nly) 

Aerato

r Start (Enga

ge) Swi

tc

h 

Aerato

r Stop 

(Di

s

e

nga

ge) Swi

tch 

Lift Switch UP

 (HJ30

00 

only) 

Lift Switch DOW

N

 (HJ3000 only) 

Brake Switch

Accum

ulator Charge

 Switch 

1. Start 

X 

X 

2. Run 

X 

X 

3. Machine Lower (aerate position) 

X 

X 

O 

X 

4. Aerate 

(see Controller Timing below) 

Machine Moving (out of neutral) 

X 

X 

X 

X 

⊗ 

X 

X 

Machine Stationary (neutral) 

X 

X 

X 

X 

X 

X 

5. Machine Raise (transport position) 

X 

X 

O 

1. Pump clutch engages immediately. 
2. Valve clutch engages 5 seconds after pump clutch engages. 

1. Pump clutch disengages and green light goes off 4 seconds after transport switch opens (red light goes off). 
2. After another 3 seconds, valve clutch will disengage.

NOTE: Keeping aerate start (engage) switch pushed in (closed) will keep green light on and override neutral delay

shut-down.

1. Pump clutch disengages and green light goes off immediately when stop (disengage) switch is pushed in (opens) 
or if pump start limit switch or water pressure switch opens (yellow light goes off). 
2. After another 3 seconds, valve clutch will disengage. 

Page 5 - 2  Rev. B 

HydroJect 3000