Using Hydraulic Spray Pumps

For Ag high flow, it is recommended that the hydraulic motor be connected to the top SCV’s (85cc high flow pump).

Not recommended for high flow scraper hydraulics.

1. Follow spray pump manufacturers recommendations for pump model selection, setup and operation.

2. In general select the smallest displacement motor recommended for multiple hydraulic function operation. The smaller displacement will lower total hydraulic flow demand and improve overall system performance

3. 
   RXA0111991-UN-18NOV10

   Spray Pump (Less Hitch)

   A - Pressure Line

   B - Return Line

   C - Needle Valve (Closed)

   D - Inlet Line Orifice (Remove)

   E - Pressure Coupler

   Connect motor pressure line (A) to retract coupler of SCV (right-hand side).

   Use of SCV 3, 4, or 5 for standard hydraulic system is suggested. Use SCV 4 or 5 for High Flow hydraulic system and no hitch. Use SCV 3 or 4 for High Flow hydraulic system and with hitch.

---




4. Some motors are not equipped with over-speed protection. Extended operation above recommended speed can cause failure.

   Connect return line (B) to return coupler (E).

5. Use of neutral SCV lever position to stop pump can allow trapped high pressure oil to damage pump seals. Use float position when stopping motor.

   Activate SCV by moving lever forward to retract detent position and adjust hydraulic flow rate per pump manufacturers guidelines.

6. Shut off spray pump by moving SCV control lever to float position (full forward and down). Stopping spray pump by moving SCV to neutral position will cause high pressure oil to be trapped between SCV and pump. This can cause damage to spray pump seals. This applies to motors using the SCV pressure and return couplers.