diff --git a/src/api/bounds.js b/src/api/bounds.js
index 8031dd7ec9..eb87871275 100644
--- a/src/api/bounds.js
+++ b/src/api/bounds.js
@@ -61,7 +61,8 @@ ol.bounds = function(opt_arg){
  */
 ol.Bounds.prototype.projection = function(opt_arg){
     if (arguments.length == 1 && goog.isDef(opt_arg)) {
-        return this.setProjection(opt_arg);
+        this.setProjection(opt_arg);
+        return this;
     }
     else {
         return this.getProjection();
@@ -76,7 +77,8 @@ ol.Bounds.prototype.projection = function(opt_arg){
  */
 ol.Bounds.prototype.minX = function(opt_arg){
     if (arguments.length == 1 && goog.isDef(opt_arg)) {
-        return this.setMinX(opt_arg);
+        this.setMinX(opt_arg);
+        return this;
     }
     else {
         return this.getMinX();
@@ -91,7 +93,8 @@ ol.Bounds.prototype.minX = function(opt_arg){
  */
 ol.Bounds.prototype.minY = function(opt_arg){
     if (arguments.length == 1 && goog.isDef(opt_arg)) {
-        return this.setMinY(opt_arg);
+        this.setMinY(opt_arg);
+        return this;
     }
     else {
         return this.getMinY();
@@ -106,7 +109,8 @@ ol.Bounds.prototype.minY = function(opt_arg){
  */
 ol.Bounds.prototype.maxX = function(opt_arg){
     if (arguments.length == 1 && goog.isDef(opt_arg)) {
-        return this.setMaxX(opt_arg);
+        this.setMaxX(opt_arg);
+        return this;
     }
     else {
         return this.getMaxX();
@@ -121,7 +125,8 @@ ol.Bounds.prototype.maxX = function(opt_arg){
  */
 ol.Bounds.prototype.maxY = function(opt_arg){
     if (arguments.length == 1 && goog.isDef(opt_arg)) {
-        return this.setMaxY(opt_arg);
+        this.setMaxY(opt_arg);
+        return this;
     }
     else {
         return this.getMaxY();
diff --git a/src/api/loc.js b/src/api/loc.js
index 3afe6d6cd2..0a8ce222ea 100644
--- a/src/api/loc.js
+++ b/src/api/loc.js
@@ -75,7 +75,8 @@ ol.Loc.prototype.projection = function(opt_arg){
  */
 ol.Loc.prototype.x = function(opt_arg){
     if (arguments.length == 1 && goog.isDef(opt_arg)) {
-        return this.setX(opt_arg);
+        this.setX(opt_arg);
+        return this;
     }
     else {
         return this.getX();
@@ -90,7 +91,8 @@ ol.Loc.prototype.x = function(opt_arg){
  */
 ol.Loc.prototype.y = function(opt_arg){
     if (arguments.length == 1 && goog.isDef(opt_arg)) {
-        return this.setY(opt_arg);
+        this.setY(opt_arg);
+        return this;
     }
     else {
         return this.getY();
diff --git a/src/api/projection.js b/src/api/projection.js
index 085d98022c..27bf1254e4 100644
--- a/src/api/projection.js
+++ b/src/api/projection.js
@@ -52,7 +52,8 @@ ol.projection = function(opt_arg){
  */
 ol.Projection.prototype.code = function(opt_code){
     if (arguments.length == 1 && goog.isDef(opt_code)) {
-        return this.setCode(opt_code);
+        this.setCode(opt_code);
+        return this;
     }
     else {
         return this.getCode();
diff --git a/src/ol/Bounds.js b/src/ol/Bounds.js
index dafc0f2b7c..5c4ac1fdc7 100644
--- a/src/ol/Bounds.js
+++ b/src/ol/Bounds.js
@@ -46,42 +46,6 @@ ol.Bounds = function(minX, minY, maxX, maxY, opt_projection) {
 };
 goog.inherits(ol.Bounds, ol.UnreferencedBounds);
 
-/**
- * @param {number} minX Minimum X.
- * @return {!ol.Bounds} This.
- */
-ol.Bounds.prototype.setMinX = function(minX) {
-    this.minX_ = minX;
-    return this;
-};
-
-/**
- * @param {number} maxX Maximum X.
- * @return {!ol.Bounds} This.
- */
-ol.Bounds.prototype.setMaxX = function(maxX) {
-    this.maxX_ = maxX;
-    return this;
-};
-
-/**
- * @param {number} minY Minimum Y.
- * @return {!ol.Bounds} This.
- */
-ol.Bounds.prototype.setMinY = function(minY) {
-    this.minY_ = minY;
-    return this;
-};
-
-/**
- * @param {number} maxY Maximum Y.
- * @return {!ol.Bounds} This.
- */
-ol.Bounds.prototype.setMaxY = function(maxY) {
-    this.maxY_ = maxY;
-    return this;
-};
-
 /**
  * @return {ol.Projection|undefined} Projection.
  */
@@ -91,9 +55,7 @@ ol.Bounds.prototype.getProjection = function() {
 
 /**
  * @param {ol.Projection|undefined} projection Projection.
- * @return {ol.Bounds} This.
  */
 ol.Bounds.prototype.setProjection = function(projection) {
     this.projection_ = projection;
-    return this;
 };
diff --git a/src/ol/Loc.js b/src/ol/Loc.js
index 3be2afc7ac..4c2cd77724 100644
--- a/src/ol/Loc.js
+++ b/src/ol/Loc.js
@@ -74,41 +74,33 @@ ol.Loc.prototype.getZ = function() {
 
 /**
  * @param {ol.Projection|undefined} projection Projection.
- * @return {ol.Loc} This.
  */
 ol.Loc.prototype.setProjection = function(projection) {
     this.projection_ = projection;
-    return this;
 };
 
 
 /**
  * @param {number} x X.
- * @return {ol.Loc} This.
  */
 ol.Loc.prototype.setX = function(x) {
     this.x_ = x;
-    return this;
 };
 
 
 /**
  * @param {number} y Y.
- * @return {ol.Loc} This.
  */
 ol.Loc.prototype.setY = function(y) {
     this.y_ = y;
-    return this;
 };
 
 
 /**
  * @param {number|undefined} z Z.
- * @return {ol.Loc} This.
  */
 ol.Loc.prototype.setZ = function(z) {
     this.z_ = z;
-    return this;
 };
 
 /**
diff --git a/src/ol/Projection.js b/src/ol/Projection.js
index a4fab80524..4ab65df88e 100644
--- a/src/ol/Projection.js
+++ b/src/ol/Projection.js
@@ -43,11 +43,9 @@ ol.Projection.prototype.getCode = function() {
 
 /**
  * @param {string} code Code.
- * @return {!ol.Projection} This.
  */
 ol.Projection.prototype.setCode = function(code) {
     this.code_ = code;
-    return this;
 };
 
 /**
@@ -59,11 +57,9 @@ ol.Projection.prototype.getUnits = function() {
 
 /**
  * @param {string} units Units abbreviation.
- * @return {!ol.Projection} This.
  */
 ol.Projection.prototype.setUnits = function(units) {
     this.units_ = units;
-    return this;
 };
 
 /**
@@ -77,11 +73,9 @@ ol.Projection.prototype.getExtent = function() {
 
 /**
  * @param {!ol.UnreferencedBounds} extent Validity extent.
- * @return {ol.Projection} This.
  */
 ol.Projection.prototype.setExtent = function(extent) {
     this.extent_ = extent;
-    return this;
 };
 
 /**
diff --git a/src/ol/UnreferencedBounds.js b/src/ol/UnreferencedBounds.js
index f4688d503d..9b90527c18 100644
--- a/src/ol/UnreferencedBounds.js
+++ b/src/ol/UnreferencedBounds.js
@@ -45,11 +45,9 @@ ol.UnreferencedBounds.prototype.getMinX = function() {
 
 /**
  * @param {number} minX Minimum X.
- * @return {ol.UnreferencedBounds} This.
  */
 ol.UnreferencedBounds.prototype.setMinX = function(minX) {
     this.minX_ = minX;
-    return this;
 };
 
 /**
@@ -61,11 +59,9 @@ ol.UnreferencedBounds.prototype.getMinY = function() {
 
 /**
  * @param {number} minY Minimum Y.
- * @return {ol.UnreferencedBounds} This.
  */
 ol.UnreferencedBounds.prototype.setMinY = function(minY) {
     this.minY_ = minY;
-    return this;
 };
 
 /**
@@ -77,11 +73,9 @@ ol.UnreferencedBounds.prototype.getMaxX = function() {
 
 /**
  * @param {number} maxX Maximum X.
- * @return {ol.UnreferencedBounds} This.
  */
 ol.UnreferencedBounds.prototype.setMaxX = function(maxX) {
     this.maxX_ = maxX;
-    return this;
 };
 
 /**
@@ -93,10 +87,8 @@ ol.UnreferencedBounds.prototype.getMaxY = function() {
 
 /**
  * @param {number} maxY Maximum Y.
- * @return {ol.UnreferencedBounds} This.
  */
 ol.UnreferencedBounds.prototype.setMaxY = function(maxY) {
     this.maxY_ = maxY;
-    return this;
 };