diff --git a/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/MdtRawDataMonitoring/MDTChamber.h b/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/MdtRawDataMonitoring/MDTChamber.h
index e133c308d9335d0370b381c306324087d70a0aea..1c464e015f93814b06338b45f73675290d56511d 100755
--- a/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/MdtRawDataMonitoring/MDTChamber.h
+++ b/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/MdtRawDataMonitoring/MDTChamber.h
@@ -82,7 +82,6 @@ class MDTChamber {
 
  private:
   std::string m_hardware_name;
-  int m_global_bin_;
   //BA=0,BC,EA,EC=3
   short int m_barrel_region;
   short int m_layer_region;
diff --git a/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MDTChamber.cxx b/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MDTChamber.cxx
index 6cf0fb5090f4a873f8417c6213751d5f480efba3..7a2abc6877d07f20645bceab379c966184d08ecd 100755
--- a/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MDTChamber.cxx
+++ b/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MDTChamber.cxx
@@ -42,7 +42,6 @@ MDTChamber::MDTChamber(std::string name) :
   mdttubenoise(0),
   mdttdctube(0),
   m_hardware_name(name),
-  m_global_bin_(0),
   m_mdthitsperchamber_InnerMiddleOuterLumi_bin(0),
   m_mdthitspermultilayerLumi_bin_m1(0),
   m_mdthitspermultilayerLumi_bin_m2(0),
diff --git a/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MdtRawDataValAlg.cxx b/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MdtRawDataValAlg.cxx
index 8ffb252be92c8db65325749d14826d13a272be24..542173cd612be3ff06fd8492bbd5d9178dbee9a7 100755
--- a/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MdtRawDataValAlg.cxx
+++ b/MuonSpectrometer/MuonValidation/MuonDQA/MuonRawDataMonitoring/MdtRawDataMonitoring/src/MdtRawDataValAlg.cxx
@@ -58,9 +58,6 @@
 
 using namespace std;
 
-static const int maxColl =   1200;
-static const int maxPrd  =   50000;
-static const int maxClus =   1000;
 float parESD1, parESD2, parESD3, parESD4;
 
 enum {enumBarrelA, enumBarrelC, enumEndCapA, enumEndCapC};
@@ -1937,7 +1934,7 @@ StatusCode MdtRawDataValAlg::handleEvent_effCalc(const Trk::SegmentCollection* s
 
   // LOOP OVER SEGMENTS  
   for (Trk::SegmentCollection::const_iterator s = segms->begin(); s != segms->end(); ++s) {
-    Muon::MuonSegment* segment = dynamic_cast<Muon::MuonSegment*>(*s);
+    const Muon::MuonSegment* segment = dynamic_cast<const Muon::MuonSegment*>(*s);
     if (segment == 0) {
       ATH_MSG_DEBUG("no pointer to segment!!!");
       break;