4-ton, 2-wheel, Ammunition Trailer M21 - TM 9-792 War Department Technical Manual

Iii. Tools, parts, and accessories V. Service upon receipt of equip- VI. Controls and operation VII. Operation of auxiliary equip- VIII. Operation under unusual con- IX. Demolition to prevent enemy XI. Special organizational tools XIII. Preventive maintenance ser- XV. Suspension (springs and radius XVI. Wheels, hubs, bearings, tires.

Xix. Air brake power system Digitized by GOOglC OF CALIFORNIA Section XXI. Landing wheel and rear prop XXII. Electrical system 77- 80 87- 91 XXIII. Body, frame, drawbar, and shell racks 81- 87 92- 96 PART FOUR— AUXILIARY EQUIPMENT Section XXIV. General 88 97 Section XXV. General 89 98 XXVI. Trouble shooting 90- 93 98- 99 XXVII. Springs and radius rods 94- 96 99-101 XXVIII- Brake spider, drum, shoes, and XXIX. Axle 101-103 105-107 XXX Body, frame, drawbar, shell racks, and landing wheel 104—105 107-110 Section XXXI. Shipment and limited storage 106—108 111-114 XXXII. References 109-111 115-117 This manual supersedes TM 9-792, dated 5 August 1944.

a. These instructions are published for the information and guidance of all concerned. They contain information on operation and maintenance of the equipment as well as descriptions of major units and their functions in relation to other components of this vehicle. They apply only to the Ammunition Trailer M21 and are arranged in five parts; Part One, Introduction; Part Two, Operating Instructions; Part Three, Maintenance Instructions; Part Four, Auxiliary Equipment; and Part Five, Repair Instructions.

b. The appendix at the end of the manual contains instructions for shipment and limited storage, and a list of references including standard nomenclature lists, technical manuals, and other publications applicable to the vehicle.

c. The stock and part numbers which appear throughout the manual are extracted from ORD 7, SNL G-213, 1 November 1944.

a. Forms and records applicable for use in performing prescribed operations are listed below with brief explanations of each:

(1) W.D,, A.G.O. Form No. 7360, Army Motor Vehicle Operator’s Permit. This form will be issued by commanding officers of posts, camps, stations, or organizations, to all operators of military vehicles who have passed the driver’s examination (TM 21300) and are qualified to drive the particular vehicles noted on the permit.

(2) War Department Lubrication Order. War Department Lubrication Order No. 726 prescribes lubrication maintenance for this vehicle. A Lubrication Order is issued with each vehicle and is to be carried with it at all times.

(3) Standard Form No, 26, Driver’s Report — Accident, Motor Transportation. One copy of this form will be kept with the vehicle at all times. In case of an accident resulting in injury or property damage, it will be filled out by the driver on the spot or as promptly as practical thereafter.

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