Got a ‘96 M4700. The only safety start switches are on the Range Lever and the PTO Lever.
The Key has 4 positions: Left = Glow Plug Warm-Up, OFF, Run, and Start.
Occasionally (dammit...it’s intermittent).... I turn the key to start and NO ROTATE of the starter... BUT...I installed an Ammeter and it displays a 40 Amp DisCharge!
This just so happens to be the exact same Discharge (40A) which the Glow Plug warm-up draws.
Sometimes it rotates/starts normally. Sometimes just the discharge indication.
I have wiggled the range lever... wiggled the PTO lever.... still intermittent.... Sometimes it rotates the starter...sometimes it doesn’t.
But the puzzle to me is.... WHY does it show a DISCHARGE even when the starter is not activated... AND... even if I deliberately put the Range Lever and/or the PTO Lever in a “no start” position. This leads me to believe it MAY be one of those switches.... EXCEPT for the fact of that 40 A DIScharge EACH TIME.
Do the Glow Plugs always power up even on a normal start?
Addt’l clue: Even when the starter rotates.... it’s still only (approximately) a 40A Discharge indication ...but he needle “wiggles” when the starter rotates... does NOT wiggle when the starter does not rotate.
I’m gonna get into the schematics, but thought I’d hope one of you guys might have an idea. (And, do the glow plugs operate automatically even on normal starts?_
The Key has 4 positions: Left = Glow Plug Warm-Up, OFF, Run, and Start.
Occasionally (dammit...it’s intermittent).... I turn the key to start and NO ROTATE of the starter... BUT...I installed an Ammeter and it displays a 40 Amp DisCharge!
This just so happens to be the exact same Discharge (40A) which the Glow Plug warm-up draws.
Sometimes it rotates/starts normally. Sometimes just the discharge indication.
I have wiggled the range lever... wiggled the PTO lever.... still intermittent.... Sometimes it rotates the starter...sometimes it doesn’t.
But the puzzle to me is.... WHY does it show a DISCHARGE even when the starter is not activated... AND... even if I deliberately put the Range Lever and/or the PTO Lever in a “no start” position. This leads me to believe it MAY be one of those switches.... EXCEPT for the fact of that 40 A DIScharge EACH TIME.
Do the Glow Plugs always power up even on a normal start?
Addt’l clue: Even when the starter rotates.... it’s still only (approximately) a 40A Discharge indication ...but he needle “wiggles” when the starter rotates... does NOT wiggle when the starter does not rotate.
I’m gonna get into the schematics, but thought I’d hope one of you guys might have an idea. (And, do the glow plugs operate automatically even on normal starts?_