Specifications

AIREFRIG AUSTRALIA PTY LTD
ALL PRICES ARE EXCLUSIVE OF GST
RECOMMENDED LIST PRICES
SUBJECT TO CHANGE WITHOUT NOTICE
A.B.N. 95 008 761 573
EFFECTIVE MARCH 2014
531
Fig 1
Fig 2
RECOVERY UNITS
CR500 Recovery Unit - Maintenance and Service Information
The CR500 and CR600 are both oil-less recovery machine designed for high performance with minimal
maintenance, there are some simple procedures which form a routine to keep peak performance.
Filter Maintenance:
The CR Series is equipped with a 100-mesh screen filter. The filter
should be checked periodically. A particularly clogged filter will slow
down the recovery rate of this unit.
Replace the filter cartridge as follows:
Use a 7/8‖ socket or boxed end wrench to loosen the suction
port as shown in fig 1.
Once loose, remove the suction port filter cartridge assembly as
shown in fig 2.
Either clean the current cartridge or replace with new cartridge.
Inspect O ring. Re-lubricate with compressor oil or equivalent.
Place filter back into suction port fitting.
Hand tighten this assembly back on to the CR unit.
Use a 7/8‖ socket or boxed wrench to tighten 1/8 of a turn.
Do not over tighten, damage to the O ring may occur.
Check the connection for leaks.
Service of control valves (diaphragm type)
Depending on the age of the unit the CR500 and CR 600 can use either
piston or diaphragm control valves. The service kit for the piston type is
part number MXPVO and the service kit for the diaphragm is M2XRK.
The CR500 and CR600 use two Teflon disc type valves. The valves are used only for the manifold
assembly valves and can be easily replaced without removing this assembly from the unit.
Peel the label on the valve knob back to expose a Phillips head screw. Remove the screw. Use a 1‖
socket wrench to remove brass valve body. Remove and discard the Mylar disc, Teflon disc, brass pin
and spring from valve cavity. Install new valve parts in the order they were removed. Tighten the brass
valve body as follows: Hand tighten, then use 1‖ socket wrench until snug. Turn 1/8 of a turn. Do not
over tighten. Check for leaks. Secure valve knob on valve stem. Detailed instructions are included in the
M2XRK packet.
Service of Control Valves (piston type)
Locate and undo the screw securing the valve handle to the shaft. Remove the screw.
Remove the handle using a 5/8‖ A/F spanner, undo the hex nut and remove assembly.
Remove the spindle from collett piece. Remove O rings and undo screw which holds in the Teflon seal.
Replace the Teflon seal and O rings.
Lightly grease O rings and screw shaft.
Re-assemble valve assembly and place in manifold.
Tighten hex nut to 25 foot pounds. (tight !!)
Attach control knob and re-fit screw.