2002/09/16 Recommendations for Ultra High Frequency (UHF) Radio Mounting Positioning {7301, 7325} Caterpillar

Reference: Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Safety".

Reference: Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Preheat, Interpass and Heat Input".

When the above listed machines require a UHF radio to be installed, the recommended UHF radio mounting position for each machine is shown in the following article.

There are many different UHF radios available. The mounting bracket for the UHF radio will vary according to each manufacturer. The installer has to manufacture the mounting bracket to suit the UHF radio being installed. This article shows the recommended UHF radio mounting positions for Load Haul Dump and Underground Articulated Trucks.

UHF Radio Mounting Position for the R1300 Load Haul Dump

Illustration 1	g00918083
View of the R1300 UHF radio mounting position for an open operator station and a fully enclosed cab (1) Position of UHF radio (2) Aerial mounting plate (3) 12.7 mm (0.50 inch) diameter hole

1. Mark out the mounting position of UHF radio (1). Drill and tap mounting holes as required. Maximum diameter to be 6 mm (0.23 inch).

2. Manufacture an aerial mounting plate. Weld aerial mounting plate (2) in the position shown in Illustration 1. Refer to Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Safety".

3. Drill 12.7 mm (0.50 inch) diameter hole (3) for the aerial cable. Refer to Illustration 1.

UHF Radio Mounting Position for the R1600 Load Haul Dump and the R1700G Load Haul Dump with an Open Operator Station

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Illustration 2	g00916108
View of the R1600 and the R1700G UHF radio mounting position (1) 9EP1705 Mount (2) Aerial mounting plate (A) 453 mm (17.83 inch) (B) 220 mm (8.66 inch) (C) 180 mm (7.08 inch) (D) 30 mm (1.18 inch) (E) 55 mm (2.16 inch) (F) Reference 156 mm (6.14 inch)

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NOTICE
Protect the dash, the exposed lining, and other components from heat and sparks generated by welding.

1. Weld two 9EP1705 Mounts (1) in the position shown in Illustration 2. Refer to Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Safety"and Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Preheat, Interpass and Heat Input".

2. Manufacture an aerial mounting plate. Weld aerial mounting plate (2) in the position shown in Illustration 2. Refer to Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Safety".

UHF Radio Mounting Position for the R1600 Load Haul Dump and the R1700G Load Haul Dump with an Enclosed Cab

Illustration 3	g00911368
View of the console modifications for the UHF radio mounting (1) Manufactured mounting plate (2) Inner console (3) UHF radio in mounted position (typical) (4) Outer console (A) 100 mm (3.93 inch) (B) 320 mm (12.59 inch)

1. Remove outer console (4) .

2. Remove inner console (2) .

3. Manufacture a suitable mounting plate to suit the UHF radio being installed.

4. Weld manufactured mounting plate (1) in the position shown in Illustration 3. Refer to Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Safety".

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Illustration 4	g00911710
View of the enclosed cab (5) Aerial mounting plate (6) 12.7 mm (0.50 inch) diameter hole

5. Manufacture an aerial mounting plate. Weld aerial mounting plate (5) in the position shown in Illustration 4. Refer to Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Safety".

6. Drill 12.7 mm (0.50 inch) diameter hole (6) for the aerial cable. Refer to Illustration 4.

UHF Radio Mounting Position for the R2900 Load Haul Dump

Illustration 5	g00911711
Typical view of the R2900 UHF radio mounting position for an open operator station and a fully enclosed cab (1) Position of the UHF radio (2) Aerial mounting plate (3) 12.7 mm (0.50 inch) diameter hole

1. Mark out the mounting position of UHF radio (1). Drill and tap mounting holes as required. Maximum diameter to be 6 mm (0.23 inch).

2. Manufacture an aerial mounting plate. Weld aerial mounting plate (2) in the position shown in Illustration 5. Refer to Maintenance Manual, RENR4700 (1DE0603), "Machine Repairs and Welding Procedures", "Safety".

3. Drill 12.7 mm (0.50 inch) diameter hole (3) for the aerial cable. Refer to Illustration 5.

UHF Radio Mounting Position for the AD45 and the AE40 Series II Underground Articulated Truck

Illustration 6	g00912062
View of the cab showing the UHF radio position (1) Existing tapping block (2) Existing aerial mounting plate (3) Position of the UHF radio (4) Existing hole for aerial cable

1. Mark out the mounting position of UHF radio (3) in the area shown in Illustration 6.

2. Manufacture brackets as required in order to suit existing tapping block (1) .

3. Drill and tap additional mounting holes as required. Maximum diameter to be 6 mm (0.23 inch).

UHF Radio Mounting Position for the AD55 Underground Articulated Truck

Illustration 7	g00916109
View of the cab showing the UHF radio mounting position (1) Existing aerial mounting plate (2) Drill 12.7 mm (0.50 inch) diameter hole (3) Existing tapping blocks

1. Drill 12.7 mm (0.50 inch) diameter hole (2) for the aerial cable. Refer to Illustration 7.

2. Manufacture UHF radio mounting brackets as required in order to suit existing tapping blocks (3) .