(3) Vacuum Pump Adaptor; (4) Electric Gas Leak Tester; (5) Can Tap Valve- Page 754

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-S11

(3)  Vacuum Pump Adaptor

Objective of the Vacuum Pump Adaptor

1. After  vacuum  has  been  created  in  the  air  conditioning  cycle,

when the vacuum pump is stopped, since there is vacuum in

hoses within the gauge manifold, the vacuum pump oil flows

back into the charging hose. If the refrigerant is refilled with the

system still in this state, the vacuum pump oil left in the charging

hose  enters  the  air  conditioner  cycle  together  with  the

refrigerant. Vacuum pump adaptor with a solenoid valve is used

to prevent this back-flow of oil from the vacuum pump. The role

of the solenoid valve is that when the current passes through

the solenoid valve, the valve closes to keep out the outside air

and allow the vacuum to build up, but when the current stops,

the valve opens to allow in air and end the vacuum.

2. Attaching this adaptor to the R12 vacuum pump currently being

used allows the pump to be used with both R134a and R12.

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(4)  Electric Gas Leak Tester

The current R12 gas leak tester has poor sensitivity for R134a

and cannot be used. Therefore, a new electric gas leak tester with

greater sensitivity has been designed and can be used with both

R134a and R12.

(Reference)

Leak tester with halide torch

• Since the reaction with chlorine within the refrigerant is used to

detect gas leaks, R134a, which contains no chlorine, cannot be

detected.

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(5) Can Tap Valve

The can tap valve that is used to charge the refrigerant into the

air conditioning system, should be used as follows: 

1. Before putting the can tap valve on the refrigerant container,

turn the handle (1) counterclockwise till the valve needle is fully

retracted.

2. Turn the plate nut (disc) (3) counterclockwise till it reaches its

highest  position,  then  screw  down  the  can  tap  valve  into  the

sealed tap.

3. Turn the place nut clockwise fully, and fix the center charging

hose to the valve.

4. Tighten the place nut firmly by hand.

5. Turn the handle (1) clockwise, thus making a hole in the sealed

tap.

6. To charge the refrigerant into the system, turn the handle (1)

counterclockwise. To stop charging, turn it clockwise.

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(1) Vacuum Pump Adaptor

(2) Vacuum Pump

(3) For R134a

(4) Magnetic Valve

(5) Air

(6) For R12

(7) Blind Cap

(1) Electric Gas Leak Tester

(1) Butterfly Handle

(2) Connection

(3) Disc

(4) Needle

KiSC issued 03, 2016 A

Detailed Information for Kubota L3560 Owners Manual

Lists of information found in Kubota L3560 Owners Manual - Page 754

  • 1. After vacuum has been created in the air conditioning cycle, when the vacuum pump is stopped, since there is vacuum in hoses within the gauge manifold, the vacuum pump oil flows back into the charging hose.
  • 2. Attaching this adaptor to the R12 vacuum pump currently being used allows the pump to be used with both R134a and R12.
  • 12. (Reference) Leak tester with halide torch • Since the reaction with chlorine within the refrigerant is used to detect gas leaks, R134a, which contains no chlorine, cannot be detected.
  • 1. Before putting the can tap valve on the refrigerant container, turn the handle (1) counterclockwise till the valve needle is fully retracted.
  • 2. Turn the plate nut (disc) (3) counterclockwise till it reaches its highest position, then screw down the can tap valve into the sealed tap.
  • 3. Turn the place nut clockwise fully, and fix the center charging hose to the valve.
  • 4. Tighten the place nut firmly by hand.
  • 5. Turn the handle (1) clockwise, thus making a hole in the sealed tap.
  • 6. To charge the refrigerant into the system, turn the handle (1) counterclockwise.
  • Since the reaction with chlorine within the refrigerant is used to detect gas leaks, R134a, which contains no chlorine, cannot be detected.

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