Tronair 5731, Operation & Service Instructions

Page: 12 / 119

Model: 5731
Hydraulic Power Unit
08/2016 | Rev. 08 Page | 7
5.3
LOCATION & LAYOUT OF CONTROLS (continued)
5.3.3 Hydraulic Control Panel

System Pressure Gauge ........................ Displays the system pressure on an analog fluid dampened gauge.

Pyrometer .............................................. Displays the fluid temperature in the return system on an analog gauge. A
warning indicator preset to 160

F (71

C) warns of high operating temperature.

Pressure Gauge Calibration Port ........... Allows for calibration of the system pressure gauge up to the operating pressure
of HPU. Calibration port shut off valve must be used in conjunction with the
calibration port.

Calibration Port Shut Off Valve .............. Used to shut off pressure to the calibration port. This valve should only be
opened when the external standard gage is attached.
(See Technical Manual for proper procedure.)

Hand Pump Pressure Gauge ................. Displays the hand pump system pressure on an analog fluid dampened gauge.
(Option M)
FIGURE 5.3.3

Hydraulic Control Panel