|
| |
TM 10-4320-351-14
For example: The specified torque value for the shaft nut is 100-1 10 ft lb (135-149 Nm).
The distance L1 measured on your torque wrench is 19 inches. The distance L2
measured on your torque wrench is 21 inches. In the following formula, TINDICATED is
the value you should read on your torque wrench with the crow foot adapter installed.
TSPECIFIED is the torque value specified for the nut.
TINDICATED = (L1/L2)TSPECIFIED
Substituting actual values:
TINDICATED = (19/21)100-110
TINDICATED = 90-99 ft lb (122-134 Nm)
In this example, 100-110 ft lb (135-149 Nm) is applied to the nut when your torque
wrench reads 90-99 ft lb (122-134 Nm).
(9)
Position strap wrench around flexible coupling as near to set screw as possible to hold pump shaft. Torque
the shaft nut to 100-110 ft lb (135-149 Nm).
(10)
Rotate shaft by hand to check for freedom of rotation. Some rubbing at the inlet is normal but if the shaft
binds or will not turn, remove shaft housing (4) and inspect for proper assembly or cause of misalignment.
(11)
Remove flexible coupling (5) from input shaft.
(12)
Install shaft nut cover (3) using four screws (1) and flat washers (2).
(13)
Install safety wire on shaft nut cover retaining screws (1).
(14)
Install splined flexible coupling adapter (5) on pump shaft. Tighten set screw securely against shaft key
(19).
5.4.3 Replace Fuel Transfer Pump Vane Pump Housing O-Rings. (Refer to figure 5-5.)
This task consists of:
a. Removal
b. Installation
INITIAL SET-UP:
Tools:
Materials/Parts Required:
Key, Socket Head Screw, 3/16"
Anti-Seize Compound, Molybdenum Disulfide
(Appendix B, Section III, Item 3)
(Appendix F, Section II, Item 3)
Wrench, Combination, 7/16"
(Appendix B, Section III, Item 3)
General Safety Requirements:
Equipment Condition:
Fuel transfer pump removed from pump-engine
module. (para. 4.12.1)
WARNING
·
Fuels are toxic and flammable. Do not
get on person or clothing. Work in well
ventilated area. Do not smoke. Ensure
equipment is well grounded.
5-12
|
