Drive Parts Hydrostatic Drive Pumps — Port Diagrams 27-000
10
10
4 9
3 1 2 8
5
6
7
2
1
27-001
10 9 9 4
10
3 5 2 1 6 7 8 2 1
27-003
10 10
4
2 9
3 5 9 8
1 6 7 5 9
No. 1 2 3 4 5 6 7 8 9
10
Description Check or Shock Valve Drain Port (return to reservoir)
Inlet Port (suction port, oil from oil reservoir) Bypass Valve
Check, Relief, or Shock Valve
Outlet Port (connecting to hydraulic motor) Outlet Port (connecting to hydraulic motor) Alternate Outlet Ports (if requred)* Plugged Machining Hole (not to be used)
Trunnion or Control Arm (control device will be clamped to this arm for pump speed and direction control)
* Some installations may require the use of the Alternate Outlet Ports (8) in lieu of the standard Outlet Ports (6 & 7) for easier connection of the hydraulic hoses to th hydraulic wheel motors. Do not use these alternate ports unless instructed by an experienced mechanic.