TM 9-1240-382-34
CHAPTER 2
MAINTENANCE INSTRUCTIONS
CHAPTER OVERVIEW
This chapter contains information and instructions necessary to keep the M35E1 Periscope in serviceable
condition. Contents include a. service upon receipt, b. troubleshooting, and c. maintenance procedures.
SECTION I. SERVICE UPON RECEIPT OF MATERIEL
2-1 GENERAL. Normally it is not necessary to open the
with the instructions on pages for inspection of the
shipping container at the direct support or general
assembled periscope.
support level if weapon is new or depot overhauled. The
instructions for service on receipt of materiel are found in
TM 9-2350-253-20-2 and will be used along
SECTION II. TROUBLESHOOTING
2-2 GENERAL. Troubleshooting is the application of a
TM 9-2350-253-10 and TM 9-2350-253-20-2. Trouble-
definite procedure, in a logical sequence, to isolate a
shooting procedures are contained in the trouble-
malfunction or locate a defective component. Always
shooting table. Procedures are included to determine
look first for the obvious causes that are most easily
the cause of a malfunction and action necessary to
corrected and require the least amount of disassembly.
correct the trouble. An electrical schematic diagram is
Troubleshooting procedures performed at lower
included in Appendix C for additional assistance in
maintenance levels are contained in with the instructions
troubleshooting.
on pages for inspection of the assembled periscope.
SYMPTOM INDEX
Troubleshooting
Procedure
Symptom
Paragraph
Page
Loss of Boresight ........................................................................... 2-2
Poor or no Illumination of Night Reticle ......................................... 2-2
No Night Channel Image, Low Brilliance of
Night Image, or Night Image Flickers or Moves ........................... .2-2
Foggy Vision Through Image Intensifier
Elbow, ........................................................................................... 2-2
Foggy Vision Through Daylight Body Assembly. ........................... 2-2
No Electrical Power When Emergency Power is connected ......... 2-2
2-1