Midland SP-8 Operation, Parts And Service Manual page 98

Model SP-8 &10
n :
otes
Following apply to sections 6.1 To 6.8
1. Used on SP S/N 462 on up and 1052 on up.
2. Wires 18 & 20 are connected when the dual sided discharge option is used.
3. The latching relay is shown with the reset relay energized last.
4. The Ramsey Auto Grade and Slope uses NPN transistors. Therefore the controllers operate the solenoids
by completing (seeking) ground.
5. For the canfield connector LED to light properly, the black wire must be connected to positive voltage.
6. Switch ratings, ref:
32NT91-7 28 VDC, 18A
32NT91-3 28 VDC, 20A
4NT91-3, 28 VDC, 20A
7. The harness, SP-1800-kit, is used on S/N 417 on up and 1044 on up.
8. Following are the contact positions for brake switch
NO REQ
1 1 HORN, 12 VDC (20/PK)
2 1 BACK-UP ALARM
3 1 BOLTS, BATTERY HOLD-DOWN, (2) 10" J-HOOKS W/ HARDWARE
4 1 BATTERY HOLD DOWN, ADJ, 5-1/2"-9", RAISED VENT BATTERY
5 1 BATTERY, 12V, 675 CCA, GROUP 24 (SEE ADDED NOTES)
6 6 TUBE CLIP, SINGLE-1 INCH
7 3 TUBE CLIP, DOUBLE-1-1/4 INCH FOR 3/4 HOSE
92
DESCRIPTION PART NUMBER
M18031
M18100
M5055
M6123
M6471
TC-1
TCD-1-1/4
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