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Cobra TT
Atlas Copco Cobra TT User Manual
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ASB
2000-02
© Copyright 2000, ATLAS COPCO BEREMA AB
No 9800 0088 01a
STOCKHOLM • SWEDEN
Overhauling instructions
Motor breaker
Cobra mk1
Cobra TT
Crowder Supply Co., Inc. • 8495 Roslyn St., Commerce City, CO 80022 • Toll Free: 888-883-5144 • www.CrowderSupply.com
www.CrowderSupply.com • Toll Free: 888-883-5144
2
Table of Contents
Default Chapter
2
Table of Contents
2
Technical Data
4
Engine
4
Transmission Unit
4
Hammer Unit
5
Tightening Torque Loads
5
Special Assembly Instructions
5
Service Schedule
6
Design and Function
7
Engine
7
Hammer Mechanism
7
Service Tools
8
Engine Covers
12
Dismantling of the Machine
12
Dismantling of the Covers
12
Service Cover
12
Front Cover
12
Rear Cover
13
Filter Cover
13
Fan Cover
13
Starter Cover
13
Starter Mechanism
14
Replacing Starter Rope with Starter Pulley in Place
14
Dismantling
14
Reassembly
14
Replacement of Starter Rope, Starter Pulley and Spring
14
Spring
14
Reassembly of Starter Mechanism
15
Filter Housing and Carburettor
16
Dismantling of Filter Housing
16
Dismantling and Reassembly of Choke Control and Lever
16
Dismantling of Carburettor and Diaphragm Valve
16
Engine and Hammer Mechanism
17
Dismantling of Muffler, Stabilizer Brace and Engine Mounting Bolts
17
Dismantling of the Engine from the Machine
17
Dismantling of the Muffler, Heat Shield and Fuel Tank
18
Dismantling of the Anti-Vibration Springs
18
Dismantling of the Tool Holder
18
Dismantling of the Tool Shank
19
Dismantling and Reassembly of the Tool Latch
19
Dismantling
19
Reassembly
19
Dismantling and Reassembly of the Hammer Piston and Hammer Piston Guide
20
Dismantling
20
Reassembly
20
Dismantling of the Drive Piston
21
Dismantling and Reassembly of the Connecting Rod Bearings
21
Dismantling of Plastic Bushes
22
Mounting the Engine on the Fixture
22
Dismantling of the Cooling Fan
22
Dismantling of the Electronic Unit, Carriers and Flywheel
23
Dismantling of the Engine Cylinder and Piston
23
Dismantling of the Transmission Cover
24
Dismantling of the Fan Side Crankcase
24
Dismantling of the Hammer Crankshaft Gear Wheel
25
Dismantling of the Hammer Crankshaft
25
Dismantling of the Hammer Crankshaft Bearing
26
Dismantling of the Engine Crankshaft
26
Dismantling and Reassembly of the Engine Crankshaft Bearing and Seal
26
Dismantling
26
Reassembly
26
Reassembly of Engine Crankshaft
27
Reassembly of Crankshaft Seal
27
Reassembly of Hammer Crankshaft Bearing
27
Reassembly of Locking Ring
27
Reassembly of Hammer Crankshaft
28
Reassembly of Locking Ring on Hammer Crankshaft
28
Reassembly of Hammer Crankshaft Gear Wheel
28
Dismantling of Transmission Cover Needle Bearing and Seal
29
Reassembling the Transmission Cover Needle
29
Bearing
29
Dismantling of the Engine Crankshaft Bearing and Seal on the Fan Side Crankcase
29
Fitting the Engine Crankshaft Bearing on the Fan Side Crankcase
29
Reassembly of the Drive Piston Connecting Rod and Engine Crankcase
30
Assembly of Fan Side Crankcase Seal
30
Reassembly of Transmission Cover
31
Reassembly of the Transmission Cover Seal
31
Reassembly of the Engine Piston and Cylinder
31
Reassembly of the Carrier, Flywheel and Electronics Unit
32
Reassembly of Cooling Fan
32
Reassembly of Plastic Bushes
33
Reassembly of Driver Piston
33
Reassembly of Tool Shank
33
Fitting the Hammer Cylinder on the Tool Holder
33
Reassembly of Anti-Vibration Springs
34
Dismantling and Reassembly of Right Handle
34
Dismantling and Reassembly of Fuel Filter
35
Dismantling and Reassembly of Throttle Handle
35
Dismantling
35
Reassembly
36
Reassembly of Fuel Tank and Muffler
36
Reassembly of Engine
36
Fitting the Muffler and Stabilizer Brace
37
Reassembly of Filter Housing
37
Reassembly of Machine Covers
38
Throttle Cable Adjustment
38
Front Cover
38
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Atlas Copco Cobra TT Specifications
General
Brand
Atlas Copco
Model
Cobra TT
Category
Power Tool
Language
English
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