Adjusting The Air Tensioner - Martin DT2S Operator's Manual

Table II. Recommended Spring Tension and Air Pressure
Belt Width
in. (mm)
18
24
30
36
42 (1067)
48 (1219)
54* (1372)
60* (1524)
66* (1676)
72* (1829)
84* (2134)
96* (2438)
120* (3048)
*For belt widths 54 in. and above, replace 1-3/4" long spring, upper flat washer and UHMW spring retainer
Adjusting the Air
Tensioner
Martin Engineering M3687-12/17
Air Tensioner
psi (bar)
(457) 2 (0.14)
(610) 2 (0.14)
(762) 3 (0.21)
(914) 3 (0.21)
4 (0.28)
4 (0.28)
5 (0.34)
6 (0.41)
6 (0.41)
7 (0.49)
7 (0.49)
8 (0.55)
10 (0.69)
with 2" long spring and 3/4" washer included.
The air tensioner utilizes an inflatable air bag on each cleaner mount to
provide the force to adjust the blades against the belt. Cleaner adjustments and
correct force are automatically applied by simple air pressure control. See
Figure 5.
1. Adjusting the air-tensioned Martin
supplying air at the appropriate pressure to the tensioner air bags. Refer
to Table II for recommended air pressure.
2. If using the Air Tensioner Air Regulator Kit, connect the plant air line to
the lockable ball valve on the outside of the enclosure. Turn on the air
supply and the ball valve to pressurize the tensioner. The cleaner will
automatically rise and the blades will contact the belt.
3. Adjust the pressure to the required level by unlocking and adjusting the
regulator inside the regulator kit. The regulator is self-relieving so the
pressure will stabilize. (It is advisable to wait a short while after each
adjustment to allow excess pressure to bleed.)
4. Once the correct pressure has been achieved, relock the regulator and
close the lid on the enclosure.
Spring Tensioner
Compressed Spring Length
in. (mm)
1.625 (41)
1.625 (41)
1.500 (38)
1.500 (38)
1.500 (38)
1.500 (38)
1.750 (44)
1.750 (44)
1.750 (44)
1.625 (41)
1.625 (41)
1.625 (41)
1.500 (38)
®
DT2S Reversing Cleaner requires
11
®
Martin DT2S Reversing Cleaner