(3) If handle bar windshield and leg shields are used, engine is more likely to overheat with continued high‐speed riding. Watch this carefully.

(4) Adjust “steering damper” for best control of motorcycle consistent with riding speed and condition and nature of road.

11. STOPPING AND PARKING VEHICLE.

=a. Stopping Vehicle.= Rider will make a “restart” easier and quicker if he will apply the following instructions upon stopping vehicle:

(1) Close throttle.

(2) Disengage clutch.

(3) Apply brake (or brakes) to slow vehicle without sliding rear tire.

(4) Just before coming to a complete stop, shift into “N” (neutral) position and engage clutch. CAUTION: If immediate restart is to be made, shift into “1” (low) gear and allow clutch foot pedal to remain in disengaged position. (Rider will be mounted on motorcycle with engine running.)

(5) Continue brake application to complete stop.

(6) After vehicle slows to point where it can no longer be balanced by steering, place left foot on ground to maintain balance until right foot can be removed from brake operating pedal. CAUTION: Do not idle engine longer than 1 minute.

(7) Stop engine by turning ignition switch off.

=b. Parking Vehicle.=

(1) Lean motorcycle on side (jiffy) stand.

(2) Shift into “1” (low) gear.

(3) Engage clutch so vehicle cannot roll.

(4) Shut off gasoline supply by turning valve (to right) finger‐tight against its seat.

12. TOWING VEHICLE TO START ENGINE.

=a.= In emergencies when engine cannot be started with foot starter crank, it can be started by towing the motorcycle.

(1) Set gear shifter lever in “2” (second) gear position.

(2) Disengage clutch.

(3) Choke carburetor.

(4) Turn ignition switch on.

(5) After momentum of the towed motorcycle reaches between 10 and 15 miles per hour, engage clutch, and continue procedure until engine starts.

=b. Engine Starting with Dead Battery.= Emergency engine starting with dead battery can be effected by making use of freshly charged battery, or by towing as outlined above. If vehicle with dead battery is to be towed for engine starting, proceed as follows:

(1) Disconnect battery negative wire from ground on right side of motorcycle.

(2) Tow motorcycle for engine starting.

(3) After engine is started, reconnect battery ground wire to frame to prevent damage to electrical system.

13. RUNNING‐IN NEW ENGINE (OR VEHICLE).

=a.= A new motorcycle engine or newly overhauled engine must be given proper “break‐in” consideration for at least the first 1,000 to 1,200 miles of service. Failure to do this may result in damage that will put engine out of active service within a short period of time.

=b.= At the first 250 miles, check front and rear drive chains to make sure they are receiving required amount of oil for ample lubrication. If necessary, have chain oilers adjusted by unit mechanic. Drive chains must be inspected for correct adjustment, and be given attention by unit mechanic as needed.

=c.= At first 500 miles, drain oil tank and refill with fresh oil. Check front and rear chains (step b above). Thereafter, follow instructions in Maintenance Operation section.

=d.= After a new motorcycle has been run 500 to 1,000 miles it needs to be thoroughly checked over and any loose screws and nuts tightened. Particular attention must be given engine and transmission mounting bolts and nuts, and to rear wheel mounting socket screws.

=e.= Following pointers must be observed when running‐in new engine or newly overhauled engine:

(1) Do not exceed 30 miles per hour during first 100 miles.

(2) Do not exceed 35 miles per hour during next 200 miles.

(3) Do not exceed 40 miles per hour during next 400 miles.

(4) Do not exceed 50 miles per hour during next 500 miles.

(5) Avoid use of low gears during break‐in operation as much as possible.

Section IV

FIRST ECHELON PREVENTIVE MAINTENANCE SERVICES

Paragraph Purpose 14 Before‐operation service 15 During‐operation service 16 At‐halt service 17 After‐operation and weekly service 18

14. PURPOSE.

=a.= To insure mechanical efficiency it is necessary that the vehicle be systematically inspected at intervals each day it is operated and weekly, so that defects may be discovered and corrected before they result in serious damage or failure. Certain scheduled maintenance services will be performed at these designated intervals. The services set forth in this section are those performed by driver or crew before operation, during operation, at halt, after operation, and weekly.

=b.= Driver preventive maintenance services are listed on the back of “Driver’s Trip Ticket and Preventive Maintenance Service Record,” W.D. Form No. 48, to cover vehicles of all types and models. Items peculiar to specific vehicles, but not listed on W.D. Form No. 48, are covered in manual procedures under the items to which they are related. Certain items listed on the form that do not pertain to the vehicle involved are eliminated from the procedures as written into the manual. Every organization must thoroughly school each driver in performing the maintenance procedures set forth in manuals, whether or not they are listed specifically on W.D. Form No. 48.

=c.= The items listed on W.D. Form No. 48 that apply to this vehicle are expanded in this manual to provide specific procedures for accomplishment of the inspections and services. These services are arranged to facilitate inspection and conserve the time of the driver, and are not necessarily in the same numerical order as shown on W.D. Form No. 48. The item numbers, however, are identical with those shown on that form.

=d.= The general inspection of each item applies also to any supporting member or connection, and generally includes a check to see whether the item is in good condition, correctly assembled, secure, or excessively worn.

(1) The inspection for “good condition” is usually an external visual inspection to determine whether the unit is damaged beyond safe or serviceable limits. The term “good condition” is explained further by the following: not bent or twisted, not chafed or burned, not broken or cracked, not bare or frayed, not dented or collapsed, not torn or cut.

(2) The inspection of a unit to see that it is “correctly assembled” is usually an external visual inspection to see whether it is in its normal assembled position in the vehicle.

(3) The inspection of a unit to determine if it is “secure” is usually an external visual examination, a hand‐feel, or a pry‐bar check for looseness. Such an inspection should include any brackets, lock washers, lock nuts, locking wires, or cotter pins used in assembly.

(4) “Excessively worn” will be understood to mean worn close to, or beyond, serviceable limits, and likely to result in a failure if not replaced before the next scheduled inspection.

=e.= Any defects or unsatisfactory operating characteristics beyond the scope of first echelon to correct must be reported at the earliest opportunity to the designated individual in authority.

15. BEFORE‐OPERATION SERVICE.

=a.= This inspection schedule is designed primarily as a check to see that the vehicle has not been tampered with, or sabotaged since the After‐operation Service was performed. Various combat conditions may have rendered the vehicle unsafe for operation and it is the duty of the driver to determine whether or not the vehicle is in condition to carry out any mission to which it is assigned. This operation will not be entirely omitted, even in extreme tactical situations.

=b. Procedures.= Before‐operation Service consists of inspecting items listed below according to the procedure described, and correcting or reporting any deficiencies. Upon completion of the service, results should be reported promptly to the designated individual in authority.

(1) ITEM 1, TAMPERING AND DAMAGE. Look for any injury to vehicle in general, its accessories or equipment, that may have been caused by tampering, sabotage, collision, falling debris, or shell fire since parking vehicle. Look for loosened or damaged accessories, loose fuel or oil lines, or any disconnected linkage.

(2) ITEM 3, FUEL AND OIL. Inspect tanks for fuel and oil levels, add oil and fuel as necessary. Any appreciable change in levels since performing After‐operation Service should be investigated and reported to designated authority.

(3) ITEM 4, ACCESSORIES AND DRIVES. Examine all accessories such as carburetor, air cleaner, generator, and cut‐out relay for loose connections, loose mountings, or leaks. Examine rear chain (final drive) for free up‐and‐down movement (slack), midway between sprockets. Total up‐and‐down movement must not be more than 1 inch, nor less than 1/2 inch. Inspect rear chain for adequate lubrication.

(4) ITEM 6, LEAKS, GENERAL. Examine vehicle and ground under vehicle for indications of fuel or oil leaks. Normally a few drops of waste oil from chains may be expected to drop from skid plate.

(5) ITEM 11, GLASS. Clean glass on instruments; clean and adjust rear view mirror; inspect glass for breakage.