Hyundai 35DS-7 Operation Manual page 59

3) PRESSURE TEST CHECK LIST
No Problem
1 FR/RR clutch low pressure
2 High clutch and main pressure
3 Low clutch pressure
4 Low main pressure
5 High converter pressure
6 Low converter pressure
Low converter output pressure,
7
cooler input pressure.
8 High converter output pressure,
cooler input pressure
Incorrect adjustment of inching valve linkage
Inching spool sitcked and open.
Clutch and piston oil leakage.
Regulator spring defect.
Low oil pressure.
Incorrect connection of cooler external line.
Pressure regulation valve does not move smoothly.
Clogged hydraulic line.
Oil leakage due to incorrect assembly of clutch piston seal.
Damage or wear of clutch piston seal and shaft seal.
Valve contact surface not flat or gasket damage.
Low oil quantity
Pressure regulation valve does not move smoothly.
Pump wear
Internal leakage
Low oil pressure
Main regulation valve sticked and open, oil overflow to converter.
Clogged internal passage of converter assembly.
Clogged oil line.
Clogged main regulator valve.
Low oil pressure
Cooler bypass valve sticked and open.
Clogged or resticted cooler line.
3-17
Cause