Tronair 5731, Operation & Service Instructions

Page: 33 / 119

Model: 5731
Hydraulic Power Unit
08/2016 | Rev. 08 Page | 28
9.0 MAINTENANCE (continued )
9.6 HYDRAULIC HOSES
Hoses used on the HPU must be periodically inspected for damage, blisters, leaks, or hose end problems. Any damaged or
defective hose should be replaced as soon as possible.
Hoses used on Aviation Phosphate Ester, Type IV units have a shorter useful life than hoses used on Mineral Base units.
Surface moisture is normal with Aviation Phosphate Ester, Type IV hoses as long as the fluid does not form into drops.
FIGURE 9.6

Hydraulic Hoses
PARTS LIST
Fluid Type: Aviation Phosphate Ester, Type IV
Item Part Number Description Qty
1 ............................ TF-1040-43*80.5 ............................. Assembly, Hose #16 ................................................................ 1
2 ............................ TF-1040-02*41.4 ............................. Assembly, Hose #16 ................................................................ 1
4 ............................ TF-1041-16*27.0 ............................. Assembly, Hose #16 ................................................................ 2
5 ............................ TF-1041-52*50.5 ............................. Assembly, Hose #16 ................................................................ 1
6 ............................ TF-1041-17*56.5 ............................. Assembly, Hose #24 ................................................................ 1
7 ............................ TF-1041-04*11.5 ............................. Assembly, Hose #24 ................................................................ 1
8 ............................ TF-1040-47*17.3 ............................. Assembly, Hose #24 ................................................................ 1
9 ............................ TF-1041-01*60.0 ............................. Assembly, Hose #16 ................................................................ 1
Not Shown ......................... TF-1040-05*300 .............................. External Pressure Hose ........................................................... 1
Not Shown ......................... TF-1041-04*300 .............................. External Return Hose ............................................................... 1
9.0 Maintenance continued on following page.