4. CHECKING AND ADJUSTING; [1] PTO CLUTCH; PTO Clutch Operating Pressure- Page 339

TRANSMISSION

L3560, L4060, L4760, L5060, L5460, L6060, WSM

3-S20

4.  CHECKING AND ADJUSTING

[1] PTO CLUTCH

PTO Clutch Operating Pressure

IMPORTANT

• Do not connect the universal joint of the implement to the

tractor PTO shaft while testing.

• Set the main shift lever, shuttle lever and HST pedal in

Neutral position.

• Set the parking brake lever in parking position.

1. Remove the valve cover (1).

2. Remove the plug (PT 1/8) (2) on the PTO solenoid valve (3).

3. Set the pressure gauge.

4. Start the engine and set the engine speed to maximum.

5. Turn on the PTO switch (4) and measure the oil pressure.

6. If  only  the  pressure  in  PTO  clutch  engaged  position  is  low,

check the hydraulic PTO clutch system.

7. If  the  measurement  is  not  within  the  factory  specifications,

measure the system pressure, and adjust the system pressure

with regulator valve (5) if necessary.

Condition

• Engine speed

Maximum

• Oil temperature

40 to 60 °C (104 to 140 °F)

(Reference)

• Turn to clockwise direction → Pressure is increased

• Turn to counterclockwise direction → Pressure is decreased

9Y1210824TRS0177US0

PTO operating 

pressure

When PTO shift 

lever is 

"ENGAGED"

position

Manual 

transmission and 

GST

2.30 to 2.50 MPa

23.5 to 25.4 kgf/cm

2

334 to 362 psi

HST

2.50 to 2.85 MPa

25.5 to 29.0 kgf/cm

2

363 to 413 psi

When PTO shift lever is 

"DISENGAGED"

 position

No pressure

(1) Valve Cover

(2) Plug (PT 1/8)

(3) PTO Solenoid Valve

(4) PTO Switch

(5) Regulating Valve Assembly

(6) Pressure Reducing Valve Adjustor

[A] Manual Transmission and GST
[B] HST

KiSC issued 03, 2016 A