CABLE OVERBLOWING JUNCTION BOX FOR 1 1/4” SDR DUCT OPERATION & MAINTENANCE MANUAL P/N 89066 Copyright 2012 by General Machine Products Co., Inc All rights reserved. No part of this publication may be copied, reproduced or transmitted in any form whatsoever without the written permission of General Machine Products Co., Inc. GMP • 3111 Old Lincoln Hwy • Trevose, PA 19053 • USA TEL: +1-215-357-5500 • www.gmptools.com Page 1 of 16 MAY 2012 USACo., Ver General Machine Products Inc.
REVISION HISTORY Rev # Date Details Author 01 05/31/12 Original Issue A Konschak CONTENTS 1. 2. 3. 4. 5. 6. 7. Safety Instructions General Description Specification Operating procedures Maintenance Troubleshooting Guide Recommended Spares List Page 2 of 12 General Machine Products Co., Inc.
This equipment should be used only by personnel who have been given the appropriate training and who are competent to use it. These instructions are to be made available to operators of this equipment at all times. Failure to observe these safety instructions could result in serious personal injury and/or property damage. 1. SAFETY INSTRUCTIONS WORK AREA AND GENERAL SAFETY 1. Read and understand the operation and maintenance manual supplied with this equipment.
GENERAL PNEUMATIC SAFETY INSTRUCTIONS The GMP Overblowing Junction Box is used in conjunction with the GMP Fiber Optical Cable Blowing Machine, both are pneumatic devices, they use pressurized air to project cable at high velocities. Please observe the following precautions when operating the Cable Blowing Machine: 1. Compressed air can cause flying debris. This could cause personal injury. Always wear personal protective equipment. 2.
2. GENERAL DESCRIPTION The GMP Cable Overblowing Junction Box has been designed to install a new cable or duct-tubes into an existing occupied innerduct (subject to space being available). The Cable Overblowing Junction Box comprises a heavy duty aluminium base and lid that form a pressurized air chamber into which one end of an existing occupied innerduct can be attached.
3. SPECIFICATIONS Cable Diameter Range: 9 - 20mm The maximum diameter of a new cable for installation is dependent on the diameter of the existing cable and the duct size. Duct Size: 1 1/4" SDR Installation Principle: Viscous Drag Max Operating Pressure: 175 psi (12 Bar) Length: 12" (305mm) Width: 6" (152mm) Height: 3" (76mm) Weight: 9 lbs. (4kg) Min Flow Acceptance: 250 cfm (7m³/min) Page 6 of 12 General Machine Products Co., Inc.
4. OPERATING PROCEDURE IT IS IMPERATIVE THAT ALL PERSONS USING, OPERATING OR MAINTAINING THE OVERBLOWING CABLE JUNCTION BOX, BLOWING MACHINE, POWER PACK AND AIR COMPRESSOR MUST BE FULLY TRAINED, COMPETENT AND AUTHORIZED TO DO SO, THEY MUST ALSO HAVE READ THE ENTIRE OPERATING MANUAL. GENERAL MACHINE PRODUCTS CO., INC. CANNOT BE HELD RESPONSIBLE FOR MIS-USE OF THIS EQUIPMENT. 1. Ensure that the Cable Blowing Junction Box is clean and free from debris, sludge, dirt, water and lubricant. 2.
H duct, to assist the incoming I E cable / duct it C F may be beneficial to cut part of G the end of the D B innerduct end to EXI STI A NG fit around the DU C T existing cable, BL fit the innerduct OW clamp (A) and ER G tighten the two retaining cap screws (H). Do not over tighten the retaining screws. 10. For installing duct tubes, tube end caps will need to be fitted, the duct tubes may also need to be pressurized. 11.
5. MAINTENANCE AND SERVICING The GMP Overblowing Junction Box requires very little maintenance or servicing. 1. Always ensure that the unit is clean and free from debris, sludge, dirt, water and lubricant. 2. Ensure that all the retaining screws and lower clamp collet screw threads are clean and free from debris, sludge, dirt, water and lubricant. 3. Always ensure that all cord seals are in good condition and replace any damaged or worn seals.
6. TROUBLESHOOTING GUIDE CABLE BLOWING MACHINE STOPS SUDDENLY DURING CABLE INSTALLATION • • • • • Maximum hydraulic pressure achieved Obstacle in duct installation Power Pack out of fuel Emergency stop button pressed Damaged lead between Power Pack and blowing machine EXCESSIVE AIR LEAKAGE FROM OVERBLOWING JUNCTION BOX • Damaged cord seal • Cable seals worn, incorrect size, installed wrong way around.
7. SPARES For spare parts always provide the part number and serial number. General Machine Products Co. 3111 Old Lincoln Highway, Trevose PA 19053 USA TEL: +1 215 357 5500 FAX: +1 215 357 6216 E-MAIL: info@GMPtools.com Website: www.GMPtools.com Please give as much information as possible to ensure correct identification and supply of spare parts. RECOMMENDED SPARES LIST PART No 89147 Seal Cord Qty required 10’ 89588 Sealing Cord Glue 1 Tube 89148 Silicon Grease 1 Tube 33218 Seal 9-10.
GMP • 3111 Old Lincoln Hwy • Trevose,General PA 19053 USA Co., Inc. Machine•Products Page 12 of 12 TEL: +1-215-357-5500 • www.gmptools.
