Toro ProLine H800 Service Manual page 157

Disassembling the Gear Pump (continued)
ProLine H800
19241SL Rev A
g293847
1. Marker line
2. Use a marker to make a diagonal line across the front flange, body and rear
cover for assembly purposes
Use caution when clamping the gear pump in a vise to avoid
distorting any pump components.
3. Secure the front cover of the pump in a vise with the driveshaft pointing down.
4. Loosen the 4 bolts (13) that secures the pump assembly.
5. Remove the pump from the vise and remove the bolts and washers.
6. Support the pump assembly and gently tap the pump case with a soft-faced
hammer to loosen the pump sections. Do not drop the parts or disengage
the gear mesh.
Mark the relative positions of the gear teeth and thrust plates so that
you can be assemble them in the same position. Do not touch the
gear surfaces as residue on hands may be corrosive to gear finish.
7. Remove the thrust plates and seals from each pump section. Before
removing gear set, apply marking dye to the mating teeth to retain timing.
The pump efficiency may be affected if the teeth are not installed in the same
position during assembly.
Figure 75
(Figure 75).
IMPORTANT
IMPORTANT
Page 5–89 Hydraulic System: Service and Repairs