Accusonic 8510+ series Reference Manual page 83

Perform Maintenance
1. Verify the following three safety conditions are met below. See Figure 10-3 on page B-14. If any of
these conditions is not met, STOP WORK on the transducer immediately and contact Accusonic for
advice.

Locking Rod is Padlocked Check that the padlock on the locking rod is locked. The locking
rod should not be in contact with the transducer, and it should be free to slide back and forth.

Clamp Bar is Secure Check that the two bolts (1/2 inch (13mm) heads) holding the clamp bar
are tight.

Clamp Bar Jack Screw is Fully Engaged Check that the jack screw on the clamp bar
presses tightly against the shoulder of the transducer.
Caution: If, at any time before the jacking tool is finally in place, you observe that the
transducer moves even slightly, STOP ALL WORK. Immediately clear the area around the
transducer of personnel and contact Accusonic for advice.
Warning:
during setup and alignment of the unit, and must not be disturbed.
2. Locate the jacking tool and retract the jacking screw so that the hex end of the screw extends 1 inch
(25mm) from the tool. Set the tool on a clean surface (free of mud or debris), in easy reach for the
following steps.
3. Remove the conduit clamp and gently pull the E-O connector out of the body of the transducer cable
connector as shown in Figure 10-3 on page B-14.
4. Slowly loosen the clamp screw. Fluid pressure should press the transducer tightly against the screw as
it turns, pushing the transducer up and out of its seat slightly. Continue loosening the screw until the
transducer moves out of its seat about 1/8 inch (3mm) and the shoulder of the transducer back contacts
the locking rod.
Note: If the transducer fails to move as the screw is loosened, it may be jammed, or there may be
low pressure in the conduit. Try alternately tightening and loosening the clamp screw or manually
pulling on the transducer to release it. If it does not move, contact Accusonic for advice.
Warning:
clamp screw and the transducer. If the transducer is caught and suddenly breaks free when there is
too much clearance, the resulting impact could damage the equipment or cause a safety hazard.
5. Loosen the clamp screw another full turn, retracting it completely from the transducer.
6. Unscrew the two bolts (1/2 inch (13mm) heads) holding the clamp bar and remove it.
Caution: Always work from the side of the transducer mount, so that if an error or a component
failure results in the transducer blowing out of its seat, you are not in the exit path. While working
on the transducer, keep the downrange trajectory area clear of other personnel.
7. Bolt the jacking tool to the transducer mount using the clamp bar mounting holes as shown in Figure
10-4 on page B-14. Tighten all four bolts.
8. Rotate the jacking screw to advance the tip of the screw into the recess on the transducer.
9. Use a wrench to tighten the jacking screw until the transducer no longer presses on the locking rod.
When pressure on the locking rod is released, the rod should slide freely from side to side.
Note: Do not tighten the jacking screw past the point where the locking rod is freed.
10. Unlock and remove the padlock and remove the locking rod.
11. Retract the jacking screw slightly (fluid pressure should press the transducer tightly against the jacking
screw), and push it out of its seat as the screw is backed off.
Do not loosen any set screws on the transducer mount. They are locked in place
Never allow more than 1/16 (1.5mm) inch clearance between the contact point of the
Transducer Maintenance B-9