Tronair 5731, Operation & Service Instructions

Page: 8 / 119

Model: 5731
Hydraulic Power Unit
08/2016 | Rev. 08 Page | 3
5.0 OPERATION
5.1 OPERATING PARAMETERS

The user shall use the HPU in accordance with the aircraft manufacturer's instructions.

The user shall operate the HPU in accordance with the Technical and Operator Manuals.

The employer of the operator shall provide all necessary training.
5.2 NUMERICAL VALUES
5.2.1 Model
5731
Fluid Type
: Aviation Phosphate Ester, Type IV
5.2.2
Physical

Weight (Dry): 3,500 lbs (1,588 kg)

Dimensions : Width 63.75 in (162 cm) Add 7.5 in (19 cm) for Dual System
Height 59 in (149.9 cm)
Depth 78 in (198 cm)

Power Cord: 50 ft (15.24 m) long

Pressure Hoses: 25 ft (7.62 m) ..................... Standard Length
50 ft (15.24 m) ................... Optional Length
-16 (1 in, 25.4 mm) ............ Working Diameter

Return Hoses: 25 ft (7.62 m) ..................... Standard Length
50 ft (15.24 m) ................... Optional Length
-24 (1½ in, 38.1 mm) ......... Working Diameter

Hand Pump Hose: 15 ft (4.57 m) ..................... Standard Length
-6 (3/8 in, 9.53 mm) ........... Working Diameter
5.2.3
Hydraulic Pump

A pressure compensated, adjustable maximum volume piston pump.

Maximum flow at 60 Hz ..................................................................... 34 gpm (129 lpm)

Maximum flow at 50 Hz ..................................................................... 28 gpm (107 lpm)

Maximum operating pressure at 50 Hz and 60 Hz ............................ 3,500 psi (241 bar)

System pressure relief valve setting .................................................. 3,750 psi (259 bar)

Performance Curve for 50 Hz and 60 Hz .......................................... Reference Figure 5.2.3
FIGURE 5.2.3

Performance Curve (50 Hz and 60 Hz)
0
500
1000
1500
2000
2500
3000
3500
4000
0.0 4.0 8.0 12.0 16.0 20.0 24.0 28.0 32.0 36.0
FLOW (GPM)
PR
ES
S
U
R
E
(
PS
I)
0
46
92
138
184
230
276
0.0 17.0 34.0 51.0 68.0 85.0 102.0 119.0 136.0
FLOW (LPM)
PR
ES
S
U
R
E
(
B
A
R
)
OPERATING RANGE
50Hz
60Hz
PERFORMANCE CURVE-57 SERIES HYDRAULIC POWER UNIT