0580642 JOHNSON ARMATURE PLATE & POST

Table 1
Required Tools
Tool Part Number Part Description Qty
A 366-3469 Mounting Bar 2
B - Guide Stud
5/8 - 11 by 12 inch 8
8T-4122 Hard Washer 8
6V-4803 Thrust Bearing 8
4K-0367 Full Nut 16
C 4C-5591 Anti-Seize Compound -
D - Scotch Brite 1 Note: The following story is for 300-5617 300-5622 Sea Water Heat Exchanger Gp.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting, and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Keep all parts clean from contaminants.Contaminants may cause rapid wear and shortened component life.
Drain the coolant from the cooling system into a suitable container for storage or disposal. Refer to Operation and Maintenance Manual, "Cooling System Coolant - Change".
Disconnect the elbows from the heat exchanger. Remove the heat exchanger from the engine.Note: It is not necessary to remove the heat exchanger in order to disassemble the heat exchanger. The disassembly procedure can be performed on the engine.Note: Put identification marks on all plate assemblies for installation purposes.
Illustration 1 g02104414
Use suitable cribbing to place the heat exchanger in a flat position on the rear frame. This position can help ensure proper alignment during the procedure.
Remove bolts (1) from the corners. Install Tooling (B) in spacers (4). Apply Tooling (C) to the threads of the nut and the threads of the guide stud prior to installation. Install the thrust bearing, the hard washer, and the nuts on the guide stud. Ensure that Tooling (B) is securely installed. Place two nuts together and tighten the outer nut in order to install Tooling (B). Position the thrust bearing, the hard washer, and one nut against the front frame.
Remove bolts (3) from front frame (2). Install Tooling (B) in the same manner as Step 4.Note: It is not necessary to remove the bolts from the rear frame.
Illustration 2 g02104417
Remove bolts (5) and the spacers from the front frame. Install Tooling (A).
Illustration 3 g02104418
Loosen the nuts on Tooling (B) evenly. Ensure that Tooling (B) does not loosen from the spacers.Note: Do not loosen the nuts more than one turn per nut until the heat exchanger plates are no longer compressed.Note: As the front frame rises, the heat exchanger plates will slide along Tooling (A).
Illustration 4 g02141318
Remove Tooling (B) from the spacers.
Remove front frame (2). Remove the collars and the liners from front frame (2).Note: A gasket may stick to the front frame during removal.Note: Ensure that the collars and the liners are not damaged during removal from the front frame.Note: The liners are removed from the front of the front frame.Note: Note the order and orientation of the heat exchanger plates and the gaskets during removal.
Remove heat exchanger plates (6).Note: Check the O-ring seals, the gaskets, and the seals for wear or for damage. Replace the components, if necessary.
Illustration 5 g06097990
Remove gaskets (9) from heat exchanger plates (6).
Illustration 6 g06097989
Remove gasket (9) and ring seals (10) from the last heat exchanger plate (6).
Illustration 7 g02130836
Remove collars (7) and liners (8) from the ports of the rear frame. Clean any deposits from the ports.Note: Ensure that the collars and the liners are not damaged during removal from the rear frame.Note: The liners are removed from the rear of the rear frame.Instructions for Cleaning
Clean the plates with a coarse nylon brush or new Tooling (D). Do not use a dirty Tooling (D), steel wool