Loading And Unloading The Trailer
10. If equipped, open top air valve. 11. Close proportioning valve (E). See Figure 5-9.
Figure 5-9 – Proportioning Valve Closed 12. Pressurize tank to pressure specified for material. Do not exceed pressure specified on VIN plate. 13. When tank has reached specified operating pressure, open proportioning valve (E) to the half-open position. 14. Slowly open discharge valve (F) on front hopper to the half-open position. When material begins to flow, fully open discharge valve. See Figure 5-10 & 5-11.
Figure 5-10 – Front Discharge Valve Half Open
Figure 5-11 – Front Discharge Valve Full Open
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