| Required Tools | |||
|---|---|---|---|
| Tool | Part Number | Part Description | Qty |
| A | 207-5034(1) | Stud Tensioner Tool Gp | 1 |
| 301-5215(2) | Stud Tensioner Tool Gp | 1 | |
| B | 8T-0820 | Hydraulic Pressure Gauge | 1 |
| 350-7768(3) | Electric Hydraulic Pump (115v) | 1 | |
| 350-7769(3) | Electric Hydraulic Pump (230v) | 1 | |
| 9U-6600(3) | Hand Hydraulic Pump | 1 | |
| 8T-3035 | Hydraulic Line | 1 | |
| C | 126-6918(4)
or 126-6919(5) |
Lifting Bracket | 1 |
| 126-6920 | Handle Rod | 1 | |
| 5D-1972 | Bolt | 2 | |
| D | 229-3639 | Overhaul Protection Gp | 1 |
| E | 126-6920 | Handle Rod | 1 |
| (1) | Operating pressure is |
| (2) | Operating pressure is |
| (3) | There are three pumps that are listed in the tool chart. Any one of the pumps may be used for this procedure. |
| (4) | Use with V-engines |
| (5) | Use with In-line engines |
Start By:
- Remove the exhaust manifold shields.
- Remove the fuel injector.
- If necessary, remove the engine lifting bracket.
| NOTICE |
|---|
|
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. |
| NOTICE |
|---|
|
Keep all parts clean from contaminants. Contaminants may cause rapid wear and shortened component life. |
Note: Make sure that the starting system is disabled.
Note: Tooling (D) provides all the protective covers and plugs for one cylinder. Use these protective covers in order to maximize the protection during these procedures.
- Remove bolts (1) and cover (2).
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Illustration 2 g01299470 - Remove oil supply tube assembly (3).
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Illustration 3 g01299474 Typical Example Show/hide tableNOTICE Use the proper procedure in order to apply tension to the cylinder head studs. Failure to follow the correct procedure will result in damage to the cylinder head assembly and the cylinder block assembly.
Note: Tooling (A) has a guard that is not used in the photo.
- Place pedestals (7) over the cylinder head nuts. These pedestals are a part of Tooling (A).
- Place hydraulic cylinders (6) over the pedestals. These cylinders are a part of Tooling (A).
- Attach Tooling (B) to Tooling (A).
- Install collars (4). Tighten these collars with a ratchet lever (1/2 inch drive). These collars are a part of Tooling (A).
- Loosen the collars to 1 1/2 turns.
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Personal injury can result from oil under high pressure.
DO NOT allow high pressure oil to contact skin.
Wear appropriate protective equipment while working with high pressure oil systems.
Note: The stud tensioner tool groups in Tooling (A) require different operating pressure.
- Run the pump in Tooling (A) until the operating pressure is registered on the gauge.
Note: This procedure may require more pump pressure which will depend on the temperature of the engine.
- Use dowel handle (5). Place the dowel handle through the slot in each adapter. Use the handle in order to turn the nut until the nut contacts the collar. This is equivalent to the passing of 12 holes.
- Slowly release the hydraulic pressure and remove Tooling (A).
- Remove the nuts and washers from the cylinder head studs.
- Use the bolts that hold the rocker arm shaft in place. Attach Tooling (C) to the rocker arm support on the cylinder head.
- Attach a suitable lifting device to Tooling (C). The weight of the cylinder head is approximately
204 kg (450 lb) .Show/hide table
Illustration 4 g01299478 Typical Example - Before cylinder head (8) is lifted, use Tooling (E), a suitable sized block, and a pry bar in order to loosen cylinder head (8).
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NOTICE Pry only where shown in the preceding photo. Do not pry against the coupling assembly.
- Carefully raise cylinder head (8) on the cylinder head studs, and remove the cylinder head.
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Illustration 5 g01299480 Cuffed liner Note: Steps 16 and 17 are for engines with cuffed liners.
- Remove seal plate (9) and seal plate (11). Remove the seal adapters from the cylinder head studs. Remove the O-ring seals from the seal plates and remove the O-ring seals from both sides of the seal adapters.
- Remove combustion gasket (10) from the cylinder liner.
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Illustration 6 g00639838 - Measure the thickness of combustion gasket (12) all the way around. Refer to Specifications, "Cylinder Head, Valves, Valve Springs, and Valve Seal Inserts" for more information.
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| Illustration 1 | g03818201 |
