Wacker Neuson DS 70

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Repair Engine and Upper Machine Components

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Table of Contents5
Safety Information9
Signal Words Used in this Manual9
Machine Description and Intended Use10
Safety Guidelines for Operating the Machine11
Operator Safety While Using Internal Combustion Engines13
Service Safety14
Service and Repair Safety16
Tools17
Recommended Special Tools17
Recommended Repair Tools17
Maintenance Schedules19
Periodic Maintenance Schedule (BS 50/60/70-2, BS 65)19
Periodic Maintenance Schedule (BS 500/600/700/650)20
Periodic Maintenance Schedule (BS 50/60/70-2I)21
Periodic Maintenance Schedule (BS 500/600/700-Oi)22
Periodic Maintenance Schedule (DS 70)23
Periodic Maintenance Schedule (DS 720)25
Engine and Upper Machine Components27
Removing the Silencing Cover27
Replacing the Throttle Control (2-Stroke Models, 2010 and Later)28
Replacing the Throttle Control (2010 4-Stroke Models)30
Throttle Control (Pre-2010 Models)33
Replacing the Stop Switch (2-Stroke Models, 2010 and Later)34
Replacing the Stop Switch (4-Stroke Models, 2010 and Later)37
Replacing the Guide Handle (2-Stroke Models, 2010 and Later)39
Replacing the Guide Handle (4-Stroke Models, 2010 and Later)42
Replacing the Guide Handle (Pre-2010 Models)46
Shock Mounts47
Tillotson Carburetor (BS 500/600/700/650 Only)49
Fuel Lines (BS 50/60/70-2, BS 65)51
Fuel Tank (BS Models)52
Fuel Tank (DS Models)53
Fuel Tank Cap55
Muffler (Pre-2009 BS Models)57
Engine Cooling Fins59
Muffler (DS Models)60
Replacing the Walbro Carburetor (Auto-Release Choke Models)62
Replacing the WM 80 Engine (2010 and Later Models)66
Removing Walbro Carburetor (Standard Choke Models)68
Replacing the WM 80 Engine (Pre-2010 Models)69
Replacing the Carburetor (WM 100 Engines)71
Replacing the WM 100 Engine75
Removing the WM 90 Engine79
Engine (DS Models)81
Clutch (2- and 4-Stroke Models)83
Clutch (DS 720 Only)85
Clutch (DS 70 Only)87
Ramming System89
Bellows89
Replacing the Ramming Shoe92
Spring System Cover Removal and Installation95
Spring System101
Inspecting the Spring System103
Protective Pipe104
Ramming System Lubrication (BS 500/600/700/650, DS 720)105
Ramming System Lubrication (BS 50/60/70, BS 65, DS 70)107
Crankcase109
Crank Gear and Connecting Rod109
Crank Gear, Connecting Rod, and Adjuster Assembly (BS 650/65 Only)111
Clutch Drum115
Oil Injection (if Equipped)117
Testing the Float Switch (2010 and Later Models)117
Replacing the Float Switch (2010 and Later Models)118
Float Switch Testing and Replacement (Pre-2010 Models)120
Oil Line Check Valve122
Testing/Replacing the Oil Pump124
Low Oil Shutdown (if Equipped)127
Testing the Low Oil Unit127
Troubleshooting128
Engine Hard to Start128
Engine Does Not Start129
Engine Does Not Accelerate or Runs Poorly129
Engine Overheats130
Rammer Does Not Tamp130
Rammer Jumps Erratically131
10 Technical Data132
10.4 Bs 500S135
10.5 BS 50-2I136
10.6 BS 500-Oi137
Bs 600S141
10.11 BS 60/70-2I142
10.12 BS 600/700-Oi143
10.13 BS 600/700 High Altitude144
Bs 65-V145

Wacker Neuson DS 70

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