background image

Section 

ASSEMBLY AND DISASSEMBLY 

Assembling the Equipment. 

a. General. 

(1) To 

a large extent, the mine detector, as contained in the carrying 

case, is pre-assembled as shown in figure 

The short handle is attached to the 

search head, as is the control box to the long handle. 

(2) Remove the following items from the carrying case: The search head 

with short handle attached, the long handle with control box attached, and one 

of 

the 

two 

batteries provided with the equipment. If the carrying strap is to be used, remove it 

also from the carrying case. Proceed to set up the equipment as follows. 

b. Battery Replacement. 

(1) 

Battery Pack Insertion. Unfasten the four latches which secure the 

cover to the control box. Insert the battery pack into the control box with the snap 
terminals up. Note arrangement of the snaps on battery plug and snap the plug onto 
the 

battery pack accordingly (See figure 

Replace cover on control 

box, 

check for 

proper alignment, and secure with four latches. 

(2) Battery Pack Removal. Battery pack replacement should be 

accomplished when the voltage has dropped to below 5 Volts. The absence of any 
sound in the headset is a signal to the operator that the battery voltage has dropped to 

Volts or less and the system is no longer operating. Remove the control box cover, 

unsnap the battery plug from the battery pack and remove the battery pack from the 

control box. 

(3) Battery Replacement. Remove the five C-size batteries from their 

holder and insert fresh ones.  Make sure the batteries are correctly installed by 
observing the polarities indicated on the holder. 

NOTE: At temperatures below about 0°C (32°F) the use of lithium battery 

is 

recommended for better service life. 

2-1 

Summary of Contents for 156-PMD

Page 1: ...OMII56 PMD OPERATION MANUAL For MINE DETECTING SET METALLIC AND NONMETALLIC CUBIC C0RPORATI0N MODEL 156 PMD 3 May 1983...

Page 2: ...THIS PAGE LEFT INTENTIONALLY BLANK...

Page 3: ...iminaryAdjustment and Initial Checkout 2 3 Disassemblyand Repacking Section 111 OPERATION 3 1 Operationwith More than One Mine Detector 3 2 Operating Procedure to Search an Area 3 3 Investigation of I...

Page 4: ...THIS PAGE LEFT INTENTIONALLY BLANK...

Page 5: ...e In addition a transmitter and a receiver are mounted in a housing on the search head A rubber bumper is mounted around the search head as a protectivedevice The search head assembly generates and ra...

Page 6: ...CARRYING CASE TOP W CARWING SrzzAp Figure 1 1 Mine Detecting Set Model I56 PMD 1 2...

Page 7: ...SEARCH n m D 1 SHORT HANDLE SHORT HANDLE EWER HOUSIN CONTaOL Box CARRYING STBAP I TRANSMITTER RECEIVER HOUSING Figure 1 2 Mine Dete aor Assembled...

Page 8: ...eadset assembly consists of two earphones joined by an adjustable stainless steel headband and a headset cable Rubber ear cushions are fastened over the two earphones to cut out extraneous noise and m...

Page 9: ...mperature Range operating Temperature Range storage 30 C to 50 C 25 F to 125 OF 55 C to 70 C 65 F to 155 F Battery Complement Battery pack Cubic P N 171013 containing five replaceable standard C size...

Page 10: ...THIS PAGE LEFT INTENTIONALLYBLANK...

Page 11: ...x with the snap terminals up Note arrangement of the snaps on battery plug and snap the plug onto the battery pack accordingly See figure 2 2 Replacecover on control box check for proper alignment and...

Page 12: ...d n E 2 2...

Page 13: ...TEST CONNECTOR fWith Shorting Plug Installed 1 Figure 2 2 Control Box Covet Removed 2 3...

Page 14: ...tachment eye at the top of the long handle See figure 1 2 d Headset Put on the headsetwith the headbandforward Adjust headbandso that the rubber ear cushions press against the ears with just enough pr...

Page 15: ...0 i 0 i t I I c 2 5...

Page 16: ...to the POINT mode indicated by a sudden change in click rate between 3 and 150clicks per second 3 Moving the search head away from the ground the systemwill automatically resetto the SEARCH mode with...

Page 17: ...estdiameter 3 Detach long handle from the short handle by pushing down and twisting 4 Remove the battery pack from the control box See paragraph 2 1 b the coupling 1 4 turn counterclockwise 5 Place ea...

Page 18: ...THIS PAGE INTENTIONALLY LEFT BLANK...

Page 19: ...ator should have a minimum of two hours per week m test bed operation when he is not operating regularly in combat conditions The test bed should contain at least one dummy target such as an empty woo...

Page 20: ...ons based on the signals returnedfrom the soil b A click should be heard in the headset at intervals of 2 5 seconds indicatingthe system is operating in the SEARCH mode These clicks also function as a...

Page 21: ...ME AT BURIED POINT OF STARTING P o m d eFeet Sm lc I I 1 I 1 ENDPOINT I 3 3...

Page 22: ...asses over the edge of the buried object The click rate response sounds similar to a Geiger Counter The click rate will decrease when the search head is centered over the object and will increase agai...

Page 23: ...ted by slowly moving the search head over the area surrounding the clump of grass while in POINT mode A repeatable increase in click rate indicates a probable mine Passing the search head over surface...

Page 24: ...t the switch to the OFF position Then set the switch to the ON position following the standard search procedures described in paragraph 3 2 and sweep the area again If an area without visible anomalie...

Page 25: ...aning of all components of the mine detecting set before and after each use to ensure availability of the equipment when needed and to prolong its useful life When damage to the equipment is noted or...

Reviews: