Section II. INSTALLATION

TM 11-6625-298-14

2.2. Checking Unpacked Equipment

assembly or part that does not affect proper

functioning is missing.

a. Inspect the equipment for damage incurred

c. Check to see whether the equipment has been

during shipment. If the equipment has been

modified. Equipment which has been modified will

damaged, report the damage on DD Form 6, as in

have the MWO number on the front panel, near

paragraph 1-3.

the nomenclature plate.) Check also to see whether

b. Check the equipment against the component

all currently applicable MWOs have been applied.

listing in table 1-1 and on the packing slip to see if

(Current MWOs applicable to the equipment are

the shipment is complete. Report all discrepancies

listed in DA Pam 310-7).

in accordance with paragraph 1-3. The equipment

should be placed in service even though a minor

Section II. INSTALLATION

2-3. Tools, Test Equipment, and Materials

dicator in a horizontal plane. Do not place

it in or near a strong magnetic field.

Required for Installation

(1) With the equipment prepared as in a

Since Ohmmeter ZM-21(*)/U is intended primarily

above, turn the hand generator crank at operating

for field use, there are no installation procedures

speed (approx 160 rpm). With the leads discon-

requiring tools or equipment.

nected the ohmmeter should indicate an infinite

2-4. Preliminary Adjustment of Equipment

resistance.

a. Perform the following preoperational

(2) Short circuit the test leads by clipping

procedures:

them together, and turn the hand generator crank

(l) Unfold the hand generator crank to bring

at operating speed. The ohmmeter should indicate

it to its proper operating position.

zero resistance.

(2) Connect the spade-type terminals of the

(3) If a further check is desired, and a resistor

test leads to the line and ground terminals.

of known value is available, connect it between the

b. For a simple check of the equipment, proceed

test leads and turn the hand generator crank. The

as follows:

ohmmeter should indicate the known value of the

NOTE

resistor.

The ohmmeter should be operated while at

rest on a firm level surface,with the in-

2-3