Unstirred water bath SAP, JBA, JBN Service Manual (Version 2.0) July 2014
31667 Page 6 of 23
2.3 Dismantling a unit
The dismantling guide describes a SAP 12 litre unit. All other bath sizes use the same
assembly format with the following differences:
JBA units are not fitted with a bath drain and tap
The 34 litre 110-120V model has a fixed mains cord
The 34 litre bath tank is held in by 4off M4 studs and nuts
JB and SAP baths have different membrane keypads
There are 2 control and display PCB hardware variants . One for small bath sizes and one for
large baths
WARNING: Do not dismantle the unit unless you have the equipment and necessary skills to
verify that it is safe after re-assembly – see section 4.3
WARNING: Disconnect the unit from the mains voltage supply by unplugging the mains
cord before dismantling the unit
Tools required
1 x Pozidrive screwdriver No.1
1 pair flush cutting side cutters
1 x fine nosed pliers or similar
M4 nut spinner with flexible shaft (approx 300mm long shaft
required)
Control and display PCB assembly
Tank, heater and probe assembly
Location of internal component parts
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