User's Manual

12 307707
Operation
Model 233736
WARNING
 Always follow the Pressure Relief Procedure
on page 9 before you remove the surge tank
for any reason.
 Tighten all fluid connections securely before
each use.
 Never try to stop or deflect leaks with your hand
or body.
NOTE: Always re-torque all of the cap screws using a
star-pattern sequence before you charge or operate
the surge tank to ensure against fluid or air leakage.
For torque specifications, see the Parts Drawing on
page 20.
Charging the Tank with Air
The fluid line pressure must be at zero before you
charge the tank. Pressure in the fluid line prevents the
tank from accepting a full charge.
1. See Fig. 4 on page 8. Close the fluid valve (T).
Open the priming valve (R).
2. Open the air valve (N) and set the air regulator (M)
to the desired pressure. When the tank is charged
with air, close the air valve (N) to prevent air from
escaping when fluid is introduced.
For the best results, set the air pressure to 15 psi
(0.1 MPa, 1 bar) below the fluid pressure. Do not
exceed the maximum air pressure of 218 psi (1.5
MPa, 15 bar). For fluid pressures of 232 psi (1.6
MPa, 16 bar) and above, set the air pressure to
218 psi (1.5 MPa, 15 bar).
WARNING
To reduce the risk of fire or explosion, which could
result in serious injury and property damage,
always use compressed air to charge the tank.
Never use pure oxygen.
Relieving Air Pressure in the Tank
To manually relieve air pressure in the tank, back out
the plug (11).
Fill the Tank with Fluid
1. Charge the surge tank with air, as described at left.
2. Open the fluid valve (T). Ensure that the priming
valve (R) is open.
3. Start the pump and slowly increase the fluid
pressure. When fluid flows from the priming valve,
close the valve. The surge tank is ready for use.
CAUTION
The maximum working pressure for Model 233736 is
360 psi (2.5 MPa, 25 bar). Do not exceed this fluid
line pressure.
Flush Before First Use
The surge tank is tested with oil in production. Oil
residue remains in the tank to protect it from corrosion.
Before using, flush the tank thoroughly with a
compatible solvent.