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head screwdriver, push inward while twisting
clockwise until sufficient fuel has been drained. Then
reverse to stop fuel flow.
2.54.2 Oil System Servicing.
a. Oil Types. Oils are classified as primary, commercial
equivalent, or emergency. Commercial equivalent
oils are listed in table 2-9. There are no emergency
oils authorized.
b. Nose Gearbox Servicing. The nose gearboxes
are mounted on the front of each engine. When the oil
falls below the proper level (fig 2-45), service with oil
(table 2-7).
c. Main Transmission Servicing. Access to the oil
filler cap and the right sump oil level sight gage are
through the transmission access panel on the right side
of the fuselage (fig 2-2). The left sump oil level sight
gage can be viewed through the transmission access
door on the left side of the fuselage (fig 2-2). When the
oil falls below the proper level, either side, (fig 2-45),
service with oil (table 2-7).
CAUTION
Before beginning an extended flight
with auxiliary fuel tanks installed,
engine oil tanks will be filled to the
‘‘FULL” point on the sight glass.
d. Engine Servicing. The engine oil tank is located
in the engine frame. It is serviced through a gravity
filler port. An oil level sight gage is located near the
gravity filler port. When the oil falls below the proper
level (fig 2-45), service with oil (table 2-7).
e. APU Servicing. The APU oil filler cap and oil
level sight gage are located on the oil reservoir on the
APU gearbox. The sight gage can be viewed through an
access panel under the No. 2 engine. When the oil falls
below the proper level (fig 2-45), service with oil (table
2-7).
f. Hydraulic System Servicing. The hydraulic
system should only be serviced (fig 2-45) with approved
fluids from table 2-7. Detailed hydraulic system servicing
instructions are in TM 1-1520-238-23.
TM 9-1520-238-10
Figure 2-45. Servicing Diagram (Sheet 1 of 4)
2-88
TM 1-1520-238-10
Figure 2-45 Servicing Diagram (Sheet 2 of 4)
2-89
TM 1-1520-238-10
Figure 2-45 Servicing Diagram (Sheet 3 of 4)
2-90
TM 1-1520-238-10
Figure 2-45 Servicing Diagram (Sheet 4 of 4)
2-91
TM 1-1520-238-10
Table 2-7. Fuel and Lubricant Specifications and Capacities
Tank or Capacity Materials
System us Name Spec Grade
Forward Fuel Cell 156 gal usable Turbine Fuel MIL-T-5624 JP-4
156 gal total MIL-T-5624* JP-5
MIL-T-83133 JP-8
Aft Fuel Cell 219 gal usable Turbine Fuel MIL-T-5624 JP-4
220 gal total MIL-T-5624* JP-5
MIL-T-83133 JP-8
Auxiliary Fuel Tank 229 gal usable Turbine Fuel MIL-T-5624 JP-4
230 gal total MIL-T-5624* JP-5
(each tank) MIL-T-83133 JP-8
Engine Oil Lubricating Oil MIL-L-23699*
MIL-L-7808
Main Transmission Lubricating Oil MIL-L-23699*
MIL-L-7808
Engine Nose Lubricating Oil MIL-L-23699*
Gearbox MIL-L-7808
Auxiliary Power Lubricating Oil MIL-L-23699*
Unit (APU) MIL-L-7808
Primary Hydraulic Hydraulic Fluid MIL-H-83282*
System MIL-H-5606
Utility Hydraulic Hydraulic Fluid MIL-H-83282*
System MIL-H-5606
Main Landing Gear Hydraulic Fluid MIL-H-5606
Shock Strut
Tail Landing Gear Hydraulic Fluid MIL-H-5606
Shock Strut
Brake System Hydraulic Fluid MIL-H-5606
*Use in ambient temperatures of -25 °F (-32 0 C) and above.
Do not mix lubricating oils MIL-L-23699 and MIL-L-7808.
Do not mix hydraulic fluids MIL-H-83282 and MIL-H-5606.
2-92
TM 1-1520-238-10
Change 6 2-93
Table 2-8. Approved Fuels
US Military Fuel
NATO Code No.
JP-4 (MIL-T-5624)
F-40 (Wide Cut Type)
JP-5 (MIL-T-5624) or JP-8 (MIL-T-83133)
F-44 or F-34 (High Flash Type)
COMMERCIAL FUEL
(ASTM-D-1655) JET B JET A
JET A-1
NATO F-34
American Oil Co. American JP-4 American Type A
Atlantic Richfield Arcojet B Arcojet A Arcojet A-1
Richfield Div Richfield A Richfield A-1
B.P. Trading B.P.A.T.G. B.P.A.T.K.
Caltex Petroleum Corp. Caltex Jet B Caltex Jet A-1
Cities Service Co. CITGO A
Continental Oil Co. Conoco JP-4 Conoco Jet-50 Conoco Jet-60
Gulf Oil Gulf Jet B Gulf Jet A Gulf Jet A-1
EXXON Co. USA EXXON Turbo Fuel B EXXON A EXXON A-1
Mobil Oil Mobil Jet B Mobil Jet A Mobil Jet A-1
Phillips Petroleum Philjet JP-4 Philjet A-50
Shell Oil Aeroshell JP-4 Aeroshell 640 Aeroshell 650
Sinclair Superjet A Superjet A-1
Standard Oil Co. Jet A. Kerosene Jet A-1 Kerosene
Chevron Chevron B Chevron A-50 Chevron A-1
Texaco Texaco Avjet B Avjet A Avjet A-1
Union Oil Union JP-4 76 Turbine Fuel
NOTE: COMMERCIAL FUEL LIMITATIONS
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