ME12002
HYDRAULIC SYSTEM Removing Hexagon Socket Head Bolts and Seal Cover
9. Place pump horizontally onto the work area with the regulator-mounting surface facing downward. See Figure 3-38 and Figure 3-40. 10. Remove the hexagon socket head bolts (401) and separate pump casing from valve block (312) on both the rear and front pumps. See Figure 3-40.
261
Removing Cylinder from Pump Casing
141
Figure 3-43 Hexagon Socket Head Bolts and Seal Cover
Figure 3-41 Cylinder and Pump Casing 1. Remove cylinder (141) out of the pump casing (271), lifting it over drive shaft (111). See Figure 3-41. Figure 3-44 Seal Cover (rear) 1. Remove the hexagon socket head bolts (406) and remove the seal cover (front) (261). See Figure 3-43 and Figure 3-44. 2. Remove the seal cover by fitting a bolt into the “pulling-out” tapped hole.
IMPORTANT:Do not damage the oil shaft seal installed in the cover. 3. If installed, remove the gear pump before working on the pump unit. 4. Remove the rear pump hexagon socket headed bolts, seal cover (rear) (261), and rear cover. See Figure 3-44.
Figure 3-42 Pistons 2. Remove pistons (151), set plate (153), spherical bushing (156) and cylinder springs (157). See Figure 3-42.
IMPORTANT:Do not damage the cylinder, spherical bush, shoes, swash plate (212), etc. sliding surfaces. 3. Complete steps 1 and 2 for both the rear and front pumps. Printed in U.S.A
87
909768/BP1207
