2008T Troubleshooting Guide
P/N 490292 Rev. A
CLEAN- 4.3.2 VERR = 0 / VERIFY TOTAL FLOW
Watching for fifteen (15) seconds, does the external flow indicator’s ‘bob’ EVER rise at least ¼ way up in
the sight tube?
Yes ‘Bob’ moving! Proceed to
page 198, procedure number CLEAN- 4.6.0.
No ‘Bob’ NOT moving! See parts a THROUGH d below:
a) ENSURE no tubing restrictions at the Flow Pump and DiaSafe
®
filter!
b) ENSURE Flow Pump Pressure (gauge at Flow Pump) is still PEAKING to between
34 and 38 psi.
c) ENSURE Loading Pressure (gauge in Rinse port) PEAK pressure remains between
22 and 27 psi.
d) A restriction is indicated! See procedure number CLEAN- 4.4.0 (page 195).
CLEAN- 4.4.0 ‘BOB’ NOT MOVING / ISOLATE VALVE #29
a) Screw a 60 ml syringe, COMPLETELY filled with
water, onto the Fluid Sample Port (Figure right).
b) Start a SIX (6) second timer, in your head, as you
begin to push
AS HARD AS YOU CAN on the
syringe plunger! You should feel very little resistance!
c) Can you push ALL of the water through the Sample
Port within SIX (6) seconds?
Yes Very little resistance encountered! Valve #29
is open! See procedure number CLEAN- 4.4.1
(page 196).
No
Significant resistance encountered! NOTE ONLY VALVE #29 will be checked and proceed to
page 210, TROUBLESHOOTING A VALVE
CLEAN- 4.4.1 VALVE #29 OPEN / ISOLATE VALVE #24
a) A 1000 ml (or larger) graduated cylinder is required below. CAUTION! Fluid may be hot!
b) ENSURE the water is ON!
c)
Open the shunt door and LEAVE it OPEN until instructed!
d) Remove the BLUE dialyzer connector but DO NOT CLOSE THE DOOR!
e) Measure from the dialyzer connector for thirty (30) seconds! More than 300 ml collected?