alandownunder
Member
any help on why 4x4 not working lift wheels up they turn but tail shaft can be stopped by holding alan
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cat 428 4x4
- Thread starter alandownunder
- Start date
stinky64
Senior Member
- Joined
- Feb 25, 2017
- Messages
- 906
- Location
- java center ny
- Occupation
- big truck wrench/fixer of things
Don't hold alan!..Just being a smartass, but these guys are going to need a little more information if you're gonna get any serious replies...
alandownunder
Member
serial no 6tco4843
Chrisso
Senior Member
If the front wheels turn somewhat when 4x4 is engaged I'm kinda thinking the electrical side of things is ok. With the machine raised and 4x4 not selected, do just the rear wheel turn?
Just need to confirm if this is an electrical or mechanical issue.
Just need to confirm if this is an electrical or mechanical issue.
alandownunder
Member
front wheels turn as well
stinky64
Senior Member
- Joined
- Feb 25, 2017
- Messages
- 906
- Location
- java center ny
- Occupation
- big truck wrench/fixer of things
Man of a thousand words......You need to elaborate more on maybe what you checked, testing done, maybe something else about previous problems...give these cats something to work with....
alandownunder
Member
have just acquired the machine previous owner said was working but ive heard that statement before but for $10000 what can one expect. the front axle ok unfamiliar what type of drive mechanism has a electric switch to engage 4wd wondering is there a clutch pack or hydro drive ?????
Chrisso
Senior Member
Its a clutch pack inside your transfer box...
Actuated by a solenoid #10...
Need to check if you're getting power to this solenoid when you hit the switch. Is it clicking? If it's not, check the electrical system. Should be getting close to battery voltage. It should share a fuse with the brake lights.
Clutch engagement pressure is 205 +/- 15 psi. Need to hook up a pressure gauge to the plug circled (may even have a pressure port installed there if you're lucky). If you're not getting the pressure here, its either clutch seals or the hydraulic section of the solenoid valve.
If you're getting pressure here and no drive up front, first guess is your clutch is worn out.
Actuated by a solenoid #10...
Need to check if you're getting power to this solenoid when you hit the switch. Is it clicking? If it's not, check the electrical system. Should be getting close to battery voltage. It should share a fuse with the brake lights.
Clutch engagement pressure is 205 +/- 15 psi. Need to hook up a pressure gauge to the plug circled (may even have a pressure port installed there if you're lucky). If you're not getting the pressure here, its either clutch seals or the hydraulic section of the solenoid valve.
If you're getting pressure here and no drive up front, first guess is your clutch is worn out.