Section II. OPERATING UNDER UNUSUAL CONDITIONS

TM 10-3930-630-12

b. Move tilt control lever forward to aline forks

d. Refer to paragraph 2-7 and move truck

horizontally with stack or ground.

away from load and return for further loading operations

c. Refer to figure 2-6 and lower load into

or to a parking place.

desired position.

Section II. OPERATING UNDER UNUSUAL CONDITIONS

2-10.

General

(-18C) to a -10F (-23C), add two parts of glycol

antifreeze to five parts of water. For temperatures from

a -10F (-23C) to a -30F (-35C), add one part of

Although the truck is designed primarily for warehouse

glycol antifreeze to one part of water. Refer to TB ORD

operations, the truck could be operated under unusual

651 for the use of antifreeze solutions and cleaning

conditions as described in the following paragraphs.

compounds in engine cooling system.

When operating under these conditions, extra care must

c. Electrical System.

be provided to maintain the truck in good operating

(1) Check specific gravity of battery more

condition. To operate under these conditions, certain

often.

additional services must be performed and certain

(2) Do not add water to the battery unless

regular maintenance procedures may be required more

the engine is going to be operated immediately.

often.

(3) Keep battery charged as much as

2-11.

Operating in Extreme Heat

possible to insure starting and prevent freezing at low

temperatures.

(4) Remove and store battery (on wooden

Cooling System.

base) in a warm place if truck is not going to be parked

(1) Check adjustment of fan drive belt

in a shelter.

more often to see that the deflection is correct. Belt

should deflect three-eights of an inch when pressure is

2-13.

Operation in Sandy or Dusty Areas

applied midway between pulleys.

(2) Check coolant level more often and

a. Protect fuel hydraulic and lubrication

maintain level to bottom of filler neck on radiator.

systems from entrance of sand. Use a bag of single

Check radiator cap to be certain it is secure (para 3-12).

layer cloth and loosely tie bag over entire air cleaner

(3) Keep grille and radiator free of dirt and

during sand storms.

debris to insure good air circulation.

b. Clean fuel filter bowl, air cleaner, drive axle

(4) Flush and clean cooling system

breather, hydraulic reservoir breather, and oil filler

frequently.

b. Electrical System.

breather daily.

c. Remove all sand from axles, wheels,

(1) Check battery electrolyte level more

spindles, radiator, and brake assemblies periodically.

often. Maintain level three-eights of an inch above

Check all parts often to prevent undue wear caused by

plates.

sand.

(2) Check specific gravity of battery (para

d. Protect lift, tilt and steering mechanisms

4-46 more often.

from entrance of sand. Cover exposed parts of lift, tilt

(3) Clean battery cables frequently.

and steering cylinder rods, lift chains, bearings, and

2-12.

Operation in Extreme Cold

reservoir during sand storms.

a. Protection. The truck should be stored in a

2-14.

Operation In Damp Tropical Areas

heated building or shelter if possible. If a shelter is not

available, park the truck with the front end facing the

a. Check all paint for shipping and scratching.

wind and cover with a tarpaulin. Fasten tarpaulin

Corrosive action from dampness will take place almost

securely to prevent it from blowing away.

b. Cooling System.

immediately if bare metal is exposed.

Service the cooling

b. Touch up all spots where paint is chipped

system with antifreeze as follows. For temperatures

or scratched.

from 32F (0C) to 10F (-18C), add one part of glycol

antifreeze to four parts of water. For temperature from

10F

2-8