4 | AC442 | Symbols use Important notes In the documentation 1.1.1 Warning notices- Structure and Before start up, connecting and meaning operating MATCO products it is Warning notices warn of dangers to the user or absolutely essential that the people in the vicinity.
| AC442 | 5 en Obligation of contractor Liability The contractor is obliged to ensure that all All data in this program is based—where possible—on measures geared towards the prevention of manufacturer and importer details. MATCO does not accidents, industrial diseases, labor- related health...
and traces of other gases. Position the AC442 on all four wheels on a flat, vibration- proof surface so that proper operation of the If the refrigerant has been contaminated by being...
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The AC442 must always be transported in its operating position. Never lay the AC442 on its side, as oil could then escape from the vacuum pump or the built in compressor could be damaged. There are no additional safety systems for protecting the AC442 against damage resulting from natural catastrophes.
AC442. The refrigerant oil collected in — Dispose of the filter via official the process is drained into the used oil bottle at the AC442. collection points or in accordance with Vacuum phase: A vacuum is generated in the vehicle air the local regulations.
Product description Application AC442 is suitable for vehicles with a conventional engine as well as for hybrid and electric vehicles. AC442 features all the functions required for vehicle A/C service. The following functions can be implemented: Refrigerant recovery and recharging.
10 | AC442 | Description of unit Description of unit Fig. 2: Rear View Service Hoses Fig. 1: Front Right View Rear Handle Vent Tool Tray Hose Storage Status indicator light LCD display Low Pressure Gauge High Pressure Gauge...
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Description of unit | AC442 | 11 en Fig. 4: Internal components Accumulator/Oil separator Combo filter Compressor Vacuum pump Refrigerant tank HS compressor oil separator Manifold 1901016-85...
Description of unit | AC442 | 12 en Fig. 6: AC442 Home Screen If there are menus that cannot fit on one screen, there will be Fig. 5: Display and control panel arrows located on a side of the screen. By placing finger on Low pressure gauge screen and swiping left/right, the screen options will also move.
5.4.2 Locking caster brakes Rolling of the AC442 can be prevented by locking the caster brakes (Fig. 1, Pos. 8) at the front wheels. 5.4.3 Power supply cable and switch The power supply cable is connected to the main power input.
Description of unit | AC442 | 14 en Functional description The refrigerant recovered from the air conditioning system pass through the combo filter to remove suspended particles and moisture. The purpose of the vacuum pump is to generate a...
15 | AC442 | Equipment installation 6 Equipment installation Unpacking AC442 Slowly lower the unit from pallet by means of the rear Warning – Risk of personal injury! wheels (Fig. 12). Incorrect handling could cause equipment to overturn.
Set the AC442 on a flat, vibration proof surface. — Actuate the caster brake to stop the AC442 from rolling. Gas weight check (vacuums entire refrigerant circuit to ensure no Connect the power supply cable to the power supply.
Wear protective goggles. Wear protective gloves. Before the AC442 can be used, the internal refrigerant bottle must be filled with liquid refrigerant. Use only R134a refrigerant. A menu-driven refrigerant check is performed before filling the internal refrigerant bottle.
The AC442 has 2 different refrigerant charge connection point to the A/C to minimize the methods. If charge does not complete using Quick introduction of air into the AC442 and to minimize the mode, the zero tolerance method automatically amount of refrigerant released while disconnecting commences the hoses.
19| AC442 | A/C System service 9 A/C system service Manual cycle setup Automatic cycle setup Access to manual cycles is available through the main menu Access to automatic cycles is available through the by selecting MANUAL CYCLES. main menu by selecting AUTOMATIC.
A/C System Service | AC442 | 20 en Recovery process Charge process 1. From the main menu, select MANUAL, and then 1. From the main menu, select MANUAL, and then deselect all deselect all options except for RECOVERY. options except for CHARGE.
21| AC442 | A/C System service Flushing after changing type of Oil Volume When servicing a vehicle, the type of oil in the vehicle's A/C system should be noted to prevent a cross- contamination inside the AC440. If a PAG system is...
To ensure a reliable procedure, it is advisable to use the optimum quantity of refrigerant. The optimum quantity of refrigerant for the AC442 is 4kg – 10.0kg. An inadequate quantity of refrigerant may make effectiveness of filling the vehicle air conditioning system impossible.
23| AC442| Maintenance 10.3 Self test 10.6 Long life pump test This test is designed to check the internal AC442 circuit for any leaks. The Long Life Pump function equipped on the AC442 enables the unit to optimize the vacuum pump oil use and To perform Self test: avoid the need to replace after every 60 hours of operation.
Each filter is marked with a unique code. This code must be entered when replacing the filter. It is not possible to operate the AC442 if the same code is re-used. It is advisable to keep a supply of filters in stock to avoid downtimes due to the unit being disabled.
10.9 Printer maintenance (optional) 10.10 Periodic checks The AC442 service station must be checked over 1. Open the lid of the printer as shown in Fig. 28. regularly as set by local legislation. The following checks should be performed to ensure safe and reliable operation: —...
33 | AC442 | Maintenance 12.4 Other checks/maintenance/repairs Other checks/maintenance/repairs Result of check Maintenance Technician Date Maintenance technician identification (pass/fail) signature and stamp 1901016-85...
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Maintenance | AC442 | 34 en Other checks/maintenance/repairs Result of check Maintenance Technician Date Maintenance technician identification (pass/fail) signature and stamp 1901016-85...
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