2010/07/15 Caterpillar

Load Haul Dump:

R1700G (S/N: 8XZ1-UP)

Load Haul Dump:

R1700 (S/N: 4LZ132-UP)

Disassembly and Assembly, RENR4675, "R1700G Load Haul Dump Machine Systems", "Tilt Cylinder - Assemble". This module is part of Service Manual, RENR4656 Volume II.Disassembly and Assembly, RENR4562, "R1700 Series II Load Haul Dump Vehicle Systems", "Assemble Tilt Cylinder". This module is part of Service Manual, 9EL4182 Part B.

The information in this module has changed. Replace the information with the following information.

Assembly Procedure

Table 1

Required Tools
Tool	Part Number	Part Description	Qty
A	152-4250	Hydraulic Cylinder Repair Stand (1)	1
	3S-6224 8S-8033	Electric Hydraulic Pump Gp (115V) or Electric Hydraulic Pump Gp (230V)	1
B	5T-5245	Torque Multiplier	1
	5P-8628	Socket	1
C	3S-6224 8S-8033	Electric Hydraulic Pump Gp (115V) or Electric Hydraulic Pump Gp (230V)	1
	6V-3175	Double Acting Cylinder	1
	9U-6832	Nut	1
	4K-0684	Hard Washer	1
	4C-9634	Puller Stud	1
	1M-6756	Sleeve	1
	5P-8713	Plate	1
	1P-1844	Bearing Puller Adapter	1
D	1P-0520	Driver Gp	1
E	7M-7456	Bearing Mount Compound	1
F	169-5464	Quick Cure Primer	1
G	155-0695	Thread Lock Compound	1

( 1 )

Refer to the Tool Guide, NEHC2004, "Hydraulic Cylinder Repair Stands"

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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, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products. Dispose of all fluids according to local regulations and mandates.

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Illustration 1	g02177550

1. Use Tooling C to install bearings (2) and (16) in the cylinder and rod assemblies. Make sure that the bearings are centered in the bores.

2. Apply Tooling E to the bores for lip seals (1) and (15). Use Tooling D to install lip seals (1) and (15) in each side of the cylinder and rod assemblies. Make sure that the sealing lips are facing outward.

3. Install ring (3) and retaining ring (4) in cylinder body (10) .

4. Apply Tooling F then Tooling G to the threads of bolts (5) prior to assembly. Install six bolts (5) and the washers in cylinder body (10) and tighten the bolts to a torque of 100 ± 15 N·m (75 ± 10 lb ft).

5. Install piston ring (17), buffer seal assembly (21), U-cup seal (22), and wiper seal (23) in head (13). Make sure that the sealing lip of wiper seal (23) is facing the rod end of the cylinder. Lubricate the seal lip with the lubricant that is being sealed.

6. Install four bolts (24) and the washers in head (13) .

7. Install head seal (20), O-ring seal (18), and backup ring (19) on head (13). Lubricate the seal lip with the lubricant that is being sealed.

8. Install head (13) on rod assembly (11) .

9. Install wear ring (7) and seal assembly (8) on piston (9). Lubricate the seal lip with the lubricant that is being sealed.

10. Install piston (9) on rod assembly (11) .

11. Lubricate the threaded end of rod assembly (11) and install nut (6). Use Tooling B to tighten nut (6) to a torque of 18000 ± 800 N·m (13280 ± 590 lb ft).

12. Install cylinder body (10) on rod assembly (11). Install eight bolts (14) and the washers that hold head (13) to cylinder body (10). Tighten bolts (14) when the rod is fully extended. Tighten the bolts to a torque of 1800 ± 200 N·m (1325 ± 150 lb ft).

13. Remove the tilt cylinder from Tooling A. The weight of the tilt cylinder is 430 kg (948 lb).

End By:

a. Install the tilt cylinder. Refer to Disassembly and Assembly, "Tilt Cylinder - Install" for the machine that is being serviced.