WASHER-HARD 7D1649 - Caterpillar

The instrument panel is the control station for the engine. The instrument panel has the following controls on the front of the panel: Marine Power Display (MPD), Engine Control Switch (ECS), emergency stop switch and indicator lamps. The instrument panel contains the following controls on the inside of the panel: override switches, control relays and diodes.Instrument Panel
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Instrument panel
(1) Marine Power Display (MPD)
(2) "Overspeed" lamp
(3) Pyrometer
(4) Emergency stop lamp
(5) "Crank override" switch
(6) "Prelube override" switch
(7) "Protection override" switch
(8) Torque limit switch
(9) Local/remote switch (throttle)
(10) Diodes D1 to D11
(11) "Power" relay
(12) "RSR" relay
(13) "Reset 1" relay
(14) "Stop 1" relay
(15) "Reset 2" relay
(16) "Stop 2" relay
(17) "HRN" relay
(18) Engine control switch (ECS)
(19) Speed Control
(20) Local emergency stop switch
(21) Alarm (horn)
(22) "Start select switch"
(23) "STE" relay
(24) "Run 1" relay
(25) "STPE" relay
(26) "Run 2" relay
(27) "ECSIR" relay Power Distribution Panel
The power distribution panel distributes power to the various systems on the engine. The power distribution panel has two external connections for the battery. The power distribution panel has multiple breakers that are mounted externally. The power distribution panel contains the following controls on the inside of the panel: control relays, circuit breakers, diodes, control switches and timer.
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Power distribution panel
(28) Circuit breaker for the primary ECM (20 Amp)
(29) Circuit breaker for the secondary ECM (20 Amp)
(30) Circuit breaker for the prelube and air shutoff circuits (40 Amp)
(31) "Marine Power Display (MPD)" circuit breaker (20 Amp)
(32) Starter and alternator circuit breaker (70 Amp)
(33) "PPR2" relay
(34) "R4A" relay
(35) "R4" relay
(36) "R3A" relay
(37) "R3" relay
(38) "R2A" relay
(39) "R2" relay
(40) "R1" relay
(41) Air shutoff timer
(42) General alarm relay
(43) "SD Notify" relay
(44) Starting motor magnetic switch 2
(45) Starting motor magnetic switch 1
(46) "PPR1" switch
(47) Air shutoff switch (ASOS) Note: Circuit breaker (29) and relay (39) are not used on auxiliary engines.