6.Inspect rotating parts kit (see Fig. 26).

A.Verify that piston O.D. finish shows no wear or deep scratches. Piston shoes should fit snuggly onto the ball end of the pistons. The shoe surface that contacts the camplate should be smooth and flat. Do not lap piston shoes.

B.Examine the mutual contact surfaces on the spi- der and spider pivot; both contact areas should be smooth and free of wear.

C.The piston block surface that makes contact with the valve plate should be smooth and free of deep scratches. Do not lap piston shoes.

D.The bore areas of the piston block should be free of scoring and contamination. Pistons should move freely in the bore areas.

Reassembly (Fig. 24)

1.Make sure all parts are clean. Lubricate all critical moving parts and O±rings with clean hydraulic oil.

2.If necessary, press new bearing (14) into housing assembly (15) to the dimension shown in Figure 29.

3.Insert camplate (20) into the housing assembly (15).

4.On the short trunnion side of the camplate (20), install bearing (13) with numbered side to the inside of the pump. Install inner race (12) with the chamfer to- wards the inside of the pump. Install washer (11), O±ring (10), O±ring cover (9), and trunnion cover (8). Secure trunnion cover with two screws (7) torque them from 36 to 48 in±lb (42 to 55 kg±cm).

5.On the long trunnion side of the camplate (20), install bearing (13) with numbered side to the inside of the pump. Install washer (11) and press shaft seal (17) into place. Secure seal cover( 16) with two screws (7) and torque them from 36 to 48 in±lb (42 to 55 kg±cm).

6.Install retaining ring (32) towards the keyed end of the shaft (31). Slide washer (33), thrust bearing (34), se- cond washer (33), and second retaining ring (32) into place over the splined end of the shaft.

7.Position washer (35) and shaft seal (36) onto the shaft (31) from the keyed end.

8.Install shaft (31) into the housing assembly (15) from the flanged end. Press shaft seal (36) into position with a seal driver. Install retaining ring (37) into the flanged end of the housing assembly (15).

9.Reassemble rotating parts kit as follows (Fig. 26):

A. Use the following parts to reassemble the piston block:

25/16 in. I.D. ￿ 15/16 in. O.D. flat washers

15/16 in. ￿ 2±7/8 in. N.C. cap screw

15/16 in. N.C. nut

B.Compress retainer and install into the spline of the piston block.

C.Position the head end of pins towards the inside of the block. Install the three pins into the special grooves in the piston block.

D.Install a washer, spring, and second washer into the piston block.

E.Place cap screw through one of the flat washers. Insert cap screw through the center of the piston block. Install second flat washer onto the capscrew so the washer rests on the three pins. Screw nut onto the cap screw.

F.Compress spring by tightening the nut onto the cap screw. Install the retaining ring into the piston block.

G.Unscrew the nut and remove washer and cap screw from the piston block.

H.Install spider pivot onto the three pins and place the spider on the spider pivot.

I.Insert piston assemblies through the spider and into the piston block with the piston shoes resting on the spider.

10.Set rotating kit assembly (29) on a working surface with the piston shoes facing up. Insert shaft (31) through the rotating kit assembly with the flanged end of the housing assembly up. Position rotating kit assembly into the housing assembly.

11.Make sure piston block and shaft (31) splines are aligned. Make sure piston block is engaged fully so the piston shoes are in contact with the camplate (20). Make sure all parts are in their proper position be for pro- ceeding to the next step.

12.Hold rotating kit assembly (29) in place, and clamp housing assembly (15) with the flange end down into a vise with protected jaws. Install gasket (24) and two dowel pins (18) into the housing assembly (15).

13.If necessary, press new bearing (4) or roll pin into backplate assembly (25) to the dimension shown in Fig- ure 28. Bearing should be installed with numbered end outward. Roll pin should be installed with split oriented away from the bearing.

Hydraulic System

Page 4 ± 42

Reelmaster 2300±D/2600±D

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Toro 2300-D, 2600D service manual Reassembly Fig
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2600D, 2300-D specifications

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