diff --git a/config-serializer/TypeChecker.ts b/config-serializer/TypeChecker.ts
deleted file mode 100644
index 4f2c9210..00000000
--- a/config-serializer/TypeChecker.ts
+++ /dev/null
@@ -1,13 +0,0 @@
-class TypeChecker {
-
-    static firstValidScancode = 1;
-    static lastValidScancode = 231;
-
-    static isUInt8Valid(uint8: number): boolean {
-        return 0 <= uint8 && uint8 <= 255;
-    }
-
-    static isScancodeValid(scancode: number): boolean {
-        return TypeChecker.firstValidScancode <= scancode && scancode <= TypeChecker.lastValidScancode;
-    }
-}
diff --git a/config-serializer/config-items/KeystrokeAction.ts b/config-serializer/config-items/KeystrokeAction.ts
index 06ab8ce1..07f7e3d2 100644
--- a/config-serializer/config-items/KeystrokeAction.ts
+++ b/config-serializer/config-items/KeystrokeAction.ts
@@ -7,9 +7,6 @@ class KeystrokeAction extends KeyAction {
     }
 
     set scancode(value) {
-        if (!TypeChecker.isScancodeValid(value)) {
-            throw `Invalid KeystrokeAction.scancode: ${value}`;
-        }
         this._scancode = value;
     }
 
diff --git a/config-serializer/config-items/KeystrokeWithModifiersAction.ts b/config-serializer/config-items/KeystrokeWithModifiersAction.ts
index c62b2a3b..5156e773 100644
--- a/config-serializer/config-items/KeystrokeWithModifiersAction.ts
+++ b/config-serializer/config-items/KeystrokeWithModifiersAction.ts
@@ -9,9 +9,6 @@ class KeystrokeWithModifiersAction extends KeyAction {
     }
 
     set scancode(value) {
-        if (!TypeChecker.isScancodeValid(value)) {
-            throw `Invalid KeystrokeWithModifiersAction.scancode: ${value}`;
-        }
         this._scancode = value;
     }
 
diff --git a/config-serializer/config-items/PlayMacroAction.ts b/config-serializer/config-items/PlayMacroAction.ts
index d1713634..2670aa79 100644
--- a/config-serializer/config-items/PlayMacroAction.ts
+++ b/config-serializer/config-items/PlayMacroAction.ts
@@ -7,9 +7,6 @@ class PlayMacroAction extends KeyAction {
     }
 
     set macroId(value) {
-        if (!TypeChecker.isUInt8Valid(value)) {
-            throw `Invalid PlayMacroAction.macroId: ${value}`;
-        }
         this._macroId = value;
     }
 
diff --git a/config-serializer/config-items/SwitchKeymapAction.ts b/config-serializer/config-items/SwitchKeymapAction.ts
index 7bde3bd8..4411aa37 100644
--- a/config-serializer/config-items/SwitchKeymapAction.ts
+++ b/config-serializer/config-items/SwitchKeymapAction.ts
@@ -7,9 +7,6 @@ class SwitchKeymapAction extends KeyAction {
     }
 
     set keymapId(value) {
-        if (!TypeChecker.isUInt8Valid(value)) {
-            throw `Invalid SwitchKeymapAction.keymapId: ${value}`;
-        }
         this._keymapId = value;
     }
 
diff --git a/config-serializer/test-serializer.ts b/config-serializer/test-serializer.ts
index 3b92283e..e8046d5e 100644
--- a/config-serializer/test-serializer.ts
+++ b/config-serializer/test-serializer.ts
@@ -1,5 +1,4 @@
 /// <reference path="assert.ts" />
-/// <reference path="TypeChecker.ts" />
 /// <reference path="Serializable.ts" />
 /// <reference path="ClassArray.ts" />
 /// <reference path="UhkBuffer.ts" />