AS 1121-1983

1 - AS 1121-1983 GUARDS FOR AGRICULTURAL TRACTOR PTO DRIVES
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 REFERENCED DOCUMENTS.
6 - 1.3 DEFINITIONS.
6 - 1.3.1 Power take-off (PTO)
6 - 1.3.2 Power input connection (PIC)
6 - 1.3.3 PTO shaft
6 - 1.3.4 Shaft closed length
6 - 1.3.5 Shaft extended length
6 - 1.3.6 Tractor PTO guard
6 - 1.3.7 Implement PIC guard
6 - 1.3.8 PTO shaft guard, non-rotating
6 - 1.3.9 PTO shaft guard, rotating
6 - 1.3.10 PTO types
6 - 1.4 GUARDING REQUIREMENTS.
6 - 1.5 MATERIALS.
8 - SECTION 2. TRACTOR PTO GUARD
8 - 2.1 GENERAL REQUIREMENTS.
8 - 2.2 STRENGTH REQUIREMENT.
11 - SECTION 3. IMPLEMENT PIC GUARD
11 - 3.1 GENERAL REQUIREMENTS.
11 - 3.2 STRENGTH REQUIREMENT.
12 - SECTION 4. PTO SHAFT GUARD
12 - 4.1 GENERAL REQUIREMENTS.
12 - 4.2 PERFORMANCE REQUIREMENTS.
12 - 4.2.1 General.
12 - 4.2.2 Axial Loading (Applies only to guards supported by the PTO shaft).
12 - 4.2.3 Radial Loading.
12 - 4.2.4 Freezing.
12 - 4.2.5 Impact Performance.
13 - 4.2.6 Restraining Member (Non-rotating guards only)
13 - 4.3 MARKING.
13 - 4.4 TYPE TESTS.
13 - 4.4.1 General.
13 - 4.4.2 Test Report.
14 - APPENDIX A - FORM OF TEST REPORT FOR PTO SHAFT GUARD

Specifies requirements and tests for guards for three types of power take-off (PTO) drives of agricultural tractors, and includes guards for the stub shafts on the tractor and the implement as well as the connecting PTO shaft. Generally in agreement with ISO 500.

This standard specifies requirements for guards for power take-off (PTO) drives of agricultural tractors and associated implements. Requirements are specified for -(a) tractor PTO guard;(b) implement PIC guard; and(c) PTO shaft guard.The clearance zone required around the PTO is specified.