ZF 400 Series User Manual (English)

Questions and Answers:

C
Crystal GuzmanJul 29, 2025
What to do if there is insufficient oil pressure in drive position in my ZF 400?
- J
  Jordan StevensJul 29, 2025
  If you're experiencing insufficient oil pressure in the drive position of your ZF Marine Equipment, several factors could be responsible. First, check the oil level and restore it if it's insufficient. Also, ensure that the gear engagement selection lever is in the correct position; if not, adjust the gear shift linkage. A partially clogged intake filter can also cause this issue, so remove and clean the filter. Using a non-recommended oil type can also lead to insufficient pressure, so replace the oil with a recommended type. Finally, if present, ensure the trolling lever is not positioned in the trolling range; bring it back to the trolling excluded position.
L
Leslie WilliamsAug 7, 2025
How to troubleshoot no oil pressure in ZF 400?
- M
  Michael FrederickAug 7, 2025
  If there is no oil pressure in the main and lubrication circuits of your ZF Marine Equipment while in neutral or drive, it could be due to several reasons. Begin by checking the oil level and fill the marine gearbox with oil if it's low. A completely clogged intake filter can also cause this, so remove and clean the filter. Another potential cause is a broken pump driver coupling; in this case, remove the pump and replace the coupling.
J
Jennifer CherryAug 18, 2025
Why is the oil temperature excessively high in my ZF Marine Equipment?
- R
  Ralph BarkerAug 18, 2025
  High oil temperature in your ZF Marine Equipment can stem from several causes. It could be due to insufficient water flow to the heat exchanger, in which case you should replace valves and pipelines with larger ones. A dirty heat exchanger can also be the culprit, so cleaning it is recommended. Ensure the oil level is correct, as both excessively high or insufficient levels can cause this issue; restore the normal level. Using a non-recommended oil type can also lead to overheating, so replace the oil with a recommended type. Finally, slipping clutches can cause high oil temperatures; check the operating pressure.

ZF 400 Series Specifications

General

Type	Marine Transmission
Series	400 Series
Manufacturer	ZF
Application	Marine
Max Input Power	Varies by model (Consult ZF specifications)
Rated power (hp)	Varies by model (Consult ZF specifications)
Max Input Speed	Varies by model (Consult ZF specifications)
Gear Ratios	Varies by model (Consult ZF specifications)
Weight (kg)	Varies by model (Consult ZF specifications)
Weight (lbs)	Varies by model (Consult ZF specifications)
Mounting	Varies by model (Consult ZF specifications)
Housing Material	Aluminum
Oil Capacity (L)	Varies by model (Consult ZF specifications)
Oil Capacity (US qt)	Varies by model (Consult ZF specifications)
Cooling System	Integrated oil cooler (optional external cooler)