Instruction/ maintenance manual of the product Char-Lynn 110 Eaton
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No. 7-309 August, 1999 Char -L ynn ® Power Steering 110, 230 and 450 Series Steering Control Units Repair Information 001 002.
110, 230, and 450 Series Steering Control Units 2 See Note Below (lower right) Cast End Cap Special Tools Available 600057-000 Spring Installation Tool 5422-000 12 Point Drive Socket ( 5/16 in.) — -001 64489-000 6 Point (E10) Torx Drive Socket ( 5/16 in.
110, 230, and 450 Series Steering Control Units 3 Tools required for disassembly and reassembly. — Screwdriver (102-152 mm [4 in. - 6 in.] long, x 3 mm [118 in.] wide flat blade). — 6 Point (E10) Drive part No. 64489-000* or 1/2 inch socket for current hex head cap screws.
110, 230, and 450 Series Steering Control Units 4 Cleanliness is extremely important when repairing a steering control unit. Work in a clean area. Before disconnecting lines, clean port area of unit thoroughly. Use a wire brush to remove foreign material and debris from around exterior joints of the unit.
110, 230, and 450 Series Steering Control Units 5 12 Carefully remove anti-cavitation valves and manual steering check valve (roll pin and ball – if applicable) from bolt holes by tipping housing as shown (see figure 5).
110, 230, and 450 Series Steering Control Units 6 17 Remove two bearing races and needle thrust bearing and seal from spool and sleeve assembly. 18 Tip housing onto port face. Remove spool and sleeve assembly from 14 hole end of housing (Figure 10). Attention: Do not bind spool and sleeve in housing.
110, 230, and 450 Series Steering Control Units 7 Low T orque Spring Spacers (2) Standard T orque 23 Screw a #10-24 machine screw into end of check ball seat. Then lift seat out of housing by pulling on screw with pliers. 24 Remove two seals from check valve seat.
110, 230, and 450 Series Steering Control Units 8 spring slots of spool and sleeve. Position centering springs on bench so that extended edge is down and arched center section is together (figure 15). Next, with spring notches facing sleeve, insert one end of entire spring set into spring installation tool.
110, 230, and 450 Series Steering Control Units 9 17 Install retaining ring in housing (figures 19 and 20). After installing ring, pry around ring circumference with screwdriver to properly seat ring in groove. 18 Clamp housing in vise, as shown in Figure 21.
110, 230, and 450 Series Steering Control Units 10 23 Lubricate and install 72,6 mm [2.86 in.] ID seal in spacer plate or gerotor (meter), (ref.) see note page 2. The lubrication will hold seal in place. 24 Align star valleys (reference A) with marked drive (reference B).
110, 230, and 450 Series Steering Control Units 11 28 Install 7 dry cap screws (and seal washers if applicable – see figure 26) in end cap. Pretighten screws to 17 Nm [150 lb-in], then torque screws to 25-30 Nm [225-275 lb-in] in sequence shown in figure 27.
Form No. 7-309 Copyright Eaton Corporation, 1981, 1988, 1993, and 1999 All Rights Reserved Printed in USA Each Order Must Include the Following: How to Order Replacement Parts 1. Product Number 2. Date Code 3. Part Name 4. Part Number 5. Quantity of Parts For additional literature contact Eaton Corp.
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