2-14. UNCOUPLING SEMITRAILER FROM TRACTOR (Con't).
2-15. USE OF DUST CAPS.
Dust caps illustrated are transfer hose
dust caps. For location and illustra-
tion of front port and vapor collection
dust caps are removed the same.
a. Dust caps (2) at piping assembly
front port, vapor collection adapter, and trans-
fer hoses form a tight fit over fittings and pro-
b. Before a fitting can be used, re-
move dust cap (2) by pulling outward on ears
c. Always remember to latch dust cap
(2) in place after fitting is no longer in use. Push
inward on ears (1) to close dust cap.