INDICATOR 6B6797 - Caterpillar

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Install bearing cup (26A) to port block (21). Install O-ring seal (22) and plate (23) to the port block (21).
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Install the port block (21) on housing (3). Install allen head screws (20).
Illustration 17 g00885594
Illustration 18 g00885595
Install Tooling (D) onto housing (3). Use the dial indicator to determine the end play of shaft (24). Be sure that you move shaft (24) completely in both directions. Use appropriate tools in order to move shaft (24).
The thickness of shim (27) should equal the end play Measurement plus 0.0508 mm (0.00200 inch). For example, if the end play is 2.1590 mm (0.08500 inch) then the shim thickness should be 2.2098 mm (0.08700 inch).
Record the Measurement.
If necessary, grind the shim to the determined measurement.
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Remove allen head screws (20), port block (21), and the bearing cone.
Illustration 20 g00885693Note: All parts must be in the proper position.
Wrap pistons (30) with string but do not tie the string. Hold the string tight and carefully install rotating group (28) in housing (3). The splines on shaft (24) must engage with splines in retaining ball (32).
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Install shim (27).
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Install bearing cone (26) onto shaft (24). Install O-ring seals (25).
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Install port block (21) onto housing (3).
Install allen head screws (20).
Illustration 24 g00885466
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Improper assembly of parts that are spring loaded can cause bodily injury.To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Install spool (18) to body (19). Install spring retainer (17). Install spring (15) and spring (16). Install seat (14) to plug (5). Install O-ring seal (13) to plug (5).
Install spool (12) to body (19). Install spring retainer (11). Install spring (9) and spring (10). Install seat (8) to plug (4). Install O-ring seal (7) to plug (4).
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Install the O-ring seal and plug (6) to compensator valve (2). Install plug (4) and plug (5) to compensator valve (2).
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Position the compensator valve (2) on housing (3). Install allen head screws (1). Tighten allen head screws (1) to a torque of 12 N m (106 lb in). End By:
Install the pump. Refer to Disassembly and Assembly, "Piston Pump (Hydraulic Fan) - Install".