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Technical system check and adjustment of surface to air missile system 9A34/35M consists of activities/procedures whose purpose is:
- problem detection – determination of state of operation/integrity of launcher. Short test method enables validation of launcher subsystems condition in order to estimate launcher operability. Possible faults/defects on launcher are located and solutions to solve those faults/defects are proposed. The launcher must be brought into repaired state so that technical system check can be performed
- performing technical system check. Procedure consists of detailed examination of launcher's subsystems and corrective procedures application (if needed) in order of restoring system characteristics within it's specified limits.
Procedures, planned and conducted during technical system check and launcher 9A34/35M adjustment are:
a) control of electrical characteristics
- control of battery voltages while launcher system are in operation and while out of operation. Control of charging voltage.
- control of electrical resistance of isolating circuits to +24 V and +28 V
- control of switches on operator's board
- control of electromotor drives for voltages in range 21.6 to 28.8 V
b) control of mechanical characteristics
- control of geometrical characteristics relevant for functionality of launcher: measurement and adjustment of air-gap, gap, travel and travel tolerances
- control of forces measured during launcher operation (friction) and control of forces needed for parts of system activation
- control of torques needed for overcoming of friction forces in some subsystems (friction torque level, activation torque level)
c) control of targeting device
- control of optical axes parallelism in horizontal and vertical plane
- control of errors in transmission mechanism and angles of deviation of targeting device and coarse targeting device
- control using rectification panel and rectification targeting device
- control of azimuth indicator
d) control of regulated electromotor drives of launcher
- control of speed, deceleration, medium acceleration of horizontal guiding device
- control of terminal switches of drive, speed, deceleration, medium acceleration of vertical guiding device
- control of operability of anticipated target angle up <20° or down >20° after command launch and determination of anticipated target angle up to 20° for vertical guidance and horizontal guidance after launch command is given in 1 s
- control of drive shut-off from anticipated target position signal in manual tracking operating mode after launch command is given and control of drive deceleration after command emergeny launch is given
- control of normal device drives functionality of launcher position change
- control of electromotor drive functionality with test-table
- control of position change process of vertical guidance
- control of missile container carrier frame position for fixed zero position of handle on table of guding device and pressed trigger and tracking of missile container carrier frame by elevation and with the help of tracking table
- control of uniformity of tracking and one-time reversing
- control of measuring speed unit scale of aiming line and control of accuracy and time of positioning of laser device
e) control of functionality of subsystems for rocket launching
- control of 9V385M operability in manual mode of launching position
- control of voltage supply activation for 24 V and 28 V
- control of reliability of operation for blockage circuits
- control of execution of commands: rocket power supply, tracking and launching
- control command launch not executing in training mode of operation
- control of signal carry away latency time and of blockage of launch on RD signal
- control of cooling functionality, forced stop and forced support of GSN
- control of 9V385M functionality in the regime of automatic transfer of launching positions
- control of execution of command: power supply to rocket, reliable operation of parallel start-up, execution of command track and launch
- control of target tag and target marker illumination
- control of correct regime transfer and signalization of phase with given parameters, rocket 9M37 and 9M37M on one launching position
f) control of zone assesment apparatus with Zone estimation subsystem activation, measurement of deployment time of achieving stand-by and combat readiness g) control of communication subsystem functionality
- control of inside interphone communication between four/three/two participants
- control of circular interphone communication between four participants
- control of reception/transmission of calls by phone communication
- control of radio-communication or phone connection for commander and operator individually
- control of parallel operation of commander and operator on the same external communication link
- control of functionality of foot pedal for operator's external link
- control of noise voltage in operator ear-phones when all subsystems are operating
- control of warning signals
h) control of general functionality characteristics
- control of interplay of all SRL equipment when working simultaneously
- control of rocket launcher functionality when operating at 28 V
- control of rocket launcher ability to operate with 9M31M, 9M37 and 9M37M rockets
- control of counter of motor-working-hours of electromotor drives
- control of reliable connection of missile container carrier frame connection to connectors of rocket container
- control of reliable fixation and locking of rocket container on launcher
- control of reliable fixation and locking of cable connectors of rocket launcher
- control of uniformity of operation of electromotor drives at horizontal, vertical tracking and launcher position change
Control procedures listed above are applieded on each launcher that enters technical examination process. The results of each control procedure are registered in related forms. In case of detected irregularity (deviation from values indicated in technical requirements), system parameters adjustment is performeded according to adequate procedure. If the fault/error cannot be corrected by means of standard adjustment procedure, additional troubleshooting is performed with the main purpose of fault/error cause determination and proper correction method selection.
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