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Summary of Contents for Chicago Pneumatic CP3850
- Page 1 Part no 8940173703 Issue no Series no CP Technocenter 38, rue Bobby Sands - Date 09/2015 BP10273 44800 Saint Herblain - France Page 1/12 CP3850 SERVICE MANUAL www.cp.com...
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Page 2: Safety First
Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 2/12 Safety first! Before starting, please read the following instructions. Before repairing or adjusting any air tool, please read the following safety precautions and ensure that they are understood. - Page 3 (alpha code = letter at the beginning of the serial number) Rotor blades in grinder tools - some Chicago Pneumatic tools have rotor blades having a P TFE content. Such tools can be identified by referring to the tool service sheet. It is important to observe the warning printed in the service instructions concerning the ha ndling of such material.
- Page 4 Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 4/12 Handle complete (see p. 10) Exploded view of the tool Spring Valve Partition Screw 3.5 Nm Spring Motor complete (see p. 06) Guard Housing Handle bracket...
- Page 5 Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 5/12 Di smantling the tool 1. Remove the safety screw using the provided allen key and locking the output shaft with the stop finger 2. Unscrew the front flange using the provided pin spanner and locking the output shaft with the stop finger, then remove the grinding wheel 3.
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Page 6: Motor Unit
Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 6/12 Motor unit 12 Nm Piston O’ring Regulator housing LOCTITE 243 → Regulator O’ring Rear end Screw plate Needle Rotor Spigot Bearing Spring washer O’ring Bearing Spirol... - Page 7 Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 7/12 Di smantling the motor unit 1. Clamp vertically the housing of the tool in a vice. Ensure the stop finger is not clamped 2. Unscrew the 4 screws CHc M4x25 and remove the handle 3.
- Page 8 Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 8/12 Shaft unit Di smantling the shaft unit 1. Remove the safety screw using the provided allen key and locking the output shaft with the stop finger 2.
- Page 9 Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 9/12...
- Page 10 Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 10/12 Handle complete 60 Nm Needle Bushing Latch lever inlet Spring O’ring cylindrical Grooved Handle Spring Ball Screen Spring conical Ball chair Ball Inlet bushing Lever...
- Page 11 Part no 8940173703 CP3850 SERVICE Issue no Series no Date 09/2015 MANUAL Page 11/12 Di smantling of the handle 1. Clamp vertically the housing of the tool in a vice. Ensure the stop finger is not clamped 2. Unscrew the 4 screws CHc M4x25 and remove the handle 3.
- Page 12 6000 rpm CP3850-60AB9V Copyright 2015, Chicago Pneumatic Tool Co. LLC All rights reserved. Any unauthorised use or copy of t he cont ents herein, whether in part or in full, is prohibited. This particularly applies to trademarks, brand names, part numbers and drawings.
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