Removal (Fig 49)
1.Park machine on a level surface, lower cutting deck, stop engine, engage parking brake and remove key from the ignition switch.
2.Raise seat and secure it with prop rod to gain access to gear pump.
3.Drain the hydraulic reservoir.
4.To prevent contamination of hydraulic system during pump removal, thoroughly clean exterior of pump and fittings.
5.Read the General Precautions for Removing and Installing Hydraulic System Components at the begin- ning of this section.
6.Disconnect hydraulic lines from gear pump and put caps or plugs on open hydraulic lines and fittings. Label disconnected hydraulic lines for proper installation.
7.Support gear pump assembly to prevent it from fal- ling.
8.Remove two (2) cap screws and washers that secure gear pump to piston pump. Remove gear pump, cou- pler, spacer and
Installation (Fig 49)
1.Lubricate new
2.Slide coupler onto the piston pump output shaft.
3.Position
4.Remove caps or plugs from hydraulic lines and fit- tings. Install hydraulic lines to gear pump.
5.Replace hydraulic filter and fill hydraulic reservoir with new hydraulic oil.
6.Disconnect engine run solenoid electrical connector to prevent engine from starting. Prime the hydraulic pump by turning the ignition key switch to start and crank the engine for ten (10) seconds. Wait 15 seconds and re- peat cranking procedure again.
7.Connect engine run solenoid electrical connector, start the engine and check for proper operation.
8.Properly fill hydraulic system (see Charge Hydraulic System in this section).
9.Stop engine and check for hydraulic oil leaks. Check hydraulic reservoir oil level.
Hydraulic System
Groundsmaster | Page 4 | Hydraulic System |
