Bedpan / Urinal Bottle and Utensil / Bowl Washer Disinfector (WDS)
Operation, Maintenance and Installation Manual
Issue 16
Page
28
August 22
5.3
Recommended Preventative Maintenance Schedule
(to be performed by qualified maintenance personnel)
To be performed
THREE TIMES YEARLY
for devices in constant day and night use and
HALF YEARLY
or
YEARLY
for devices
in lesser usage situations
WARNING 240/415 VOLTS!
ISOLATE DEVICE FROM ELECTRIC SUPPLY BEFORE SERVICING
HOT SURFACES!
ALLOW DEVICE TO COOL PRIOR TO COMMENCING SERVICE WORKS
1.
Remove top and side panels and front bottom panel behind detergent door.
Note: Panel removal
i)
Remove 4 self-tapping screws on the top panel
ii)
Lift the side panel up to remove
iii)
Remove 2 x 3/16”
screws from bottom front panel
2.
Remove and clean the sprays as per nozzle cleaning instructions on page 27.
3.
Check condition of rack positioning magnets.
Note: Replace magnets annually
4.
Check hinge screws for tightness on pan rack and bowl rack.
5.
Check condition of door gasket.
6.
Steam generator: Check for scale build up inside element housing and water tank. Remove and clean temperature
probe and water level sensors.
7.
Water Tank: Check for scale build up inside tank and on element. Remove and clean temperature probe and water
level sensor.
8.
Remove and clean temperature probe at steam outlet.
9.
Water inlet solenoids: Check filters for material build up, clean if necessary.
10.
Make sure the water fill solenoids are completely shutting off and levels are not creeping up, if so, clean and/or
replace the solenoid.
11.
Detergent pump: Check hose on pump and hoses in detergent lines for cracks or signs of leaks.
12.
Load Cell detergent bottle: Remove detergent bottle, unscrew load cell mounting plate. Ensure that the wire to the
load cell is not strained when inspecting the load cell. Clean any detergent residue from under plate. Check load cell
for corrosion, lightly spray with WD40.
13.
Before replacing panels run purge reset cycle (see 5.9) three times to clear any airlocks in spray lines and check for
leaks. Dust down components if necessary. Replace all panels and screws.
14.
Cycle verification: Run the 3 cycle options starting with Bedpan/Urinal bottles. Download logged data to PC; and print
a report of the last 3 cycles. Check temperatures attained and wash cycle times are within the operating parameters.
15.
Replace battery on processor PCB every 12 months. Check time and date are correct, adjust if required.
Malmet will make available on request circuit diagrams, component parts lists, descriptions, calibration instructions,
or information which will assist the user’s appropriately qualified technical personnel to repair
those parts of the
device.
5.4
Safety Checks
After service or repair; the device shall be checked to confirm correct cycle operation and that the device is in a safe
operating state before being returned to service.
