(9) Pressure Switch; Pressure Switch; 1) HI Pressure Side- Page 773

Kubota L3560 Owners Manual

2014 Dodge Charger SRT Owner Manual

Table of Contents

L3560,L4060,L4760,L5060,L5460,L6060
9 ELECTRICAL SYSTEM
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CABIN

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

10-S30

(9) Pressure Switch

Pressure Switch

1. Remove the outer roof (1).

1) HI Pressure Side

1. Connect  the  manifold  gauge  (6)  to  compressor  as  following

procedure.

Close the 

HI

 and 

LO

 pressure valves (4), (5) of manifold gauge

tightly, and connect the charging hoses (3), (2) (red and blue) to

the respective compressor service valves. (See page 10-S9.)

NOTE

• Be sure to drive out the air in the charging hoses at the

manifold gauge connection end by using the refrigerant
pressure in the refrigerant cycle.

2. Start the engine and set at approx. 1500 min

-1

 (rpm). Turn on

the A/C switch, then set the blower switch to 

HI

 position.

3. Raise pressure on the 

HI

 pressure side of the refrigerant cycle

by covering the condenser front with a corrugated carboard, and

the pressure switch is activated and the compressor magnetic

clutch is turned off. At this time, read the 

HI

 pressure gauge of

the manifold gauge. If this pressure reading differs largely with

the  setting  pressure,  replace  the  pressure  switch  with  a  new

one.

2) LO Pressure Side

1. Disconnect 

2P

 connector of pressure switch (7).

2. Measure the resistance with an ohmmeter across the connector

terminals.

3. If  0  ohm  is  not  indicated  at  normal  condition,  there  is  no

refrigerant  in  the  refrigerating  cycle  because  gas  leaks  or

pressure switch is damaged.

(Reference)

• The resistance of pressure switch is 0 ohm in normal condition,

but  it  becomes  infinity  if  the  pressure  is  out  of  factory

specification. Because the pressure switch starts to work.

9Y1210824CAS0063US0

Setting pressure

Factory 

specifica-

tion

Pressure 

switch 

OFF

More than

approx. 2.94 MPa

(30.0 kgf/cm

2

, 426 psi)

Setting pressure

Factory 

specifica-

tion

Pressure 

switch 

OFF

Less than

approx. 0.196 MPa

(2.00 kgf/cm

2

, 28.4 psi)

(1) Outer Roof

(2) Charging Hose (Blue)

(3) Charging Hose (Red)

(4)

HI

 (High Pressure Side) Charging 

Valve

(5)

LO

 (Low Pressure Side) Charging 

Valve

(6) Manifold Gauge

(7) Pressure Switch

KiSC issued 03, 2016 A

Detailed Information for Kubota L3560 Owners Manual

Lists of information found in Kubota L3560 Owners Manual - Page 773

  • 1. Remove the outer roof (1).
  • 1. Connect the manifold gauge (6) to compressor as following procedure.
  • 9.) NOTE • Be sure to drive out the air in the charging hoses at the manifold gauge connection end by using the refrigerant pressure in the refrigerant cycle.
  • 2. Start the engine and set at approx.
  • 3. Raise pressure on the HI pressure side of the refrigerant cycle by covering the condenser front with a corrugated carboard, and the pressure switch is activated and the compressor magnetic clutch is turned off.
  • 1. Disconnect 2P connector of pressure switch (7).
  • 2. Measure the resistance with an ohmmeter across the connector terminals.
  • 3. If 0 ohm is not indicated at normal condition, there is no refrigerant in the refrigerating cycle because gas leaks or pressure switch is damaged.
  • 2.94 MPa (30.
  • 2.00 kgf/cm 2 , 28.
  • Be sure to drive out the air in the charging hoses at the manifold gauge connection end by using the refrigerant pressure in the refrigerant cycle.
  • The resistance of pressure switch is 0 ohm in normal condition, but it becomes infinity if the pressure is out of factory specification.

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