Dixon RAM 52ZT Benutzerhandbuch

lUbRICatIon

54

due to the effects air has on efficiency in hydrostatic 
drive applications, it is critical to purge the system.
These purge procedures should be implemented 
any time a hydrostatic system has been opened to 
facilitate maintenance or any additional oil has been 
added to the system.
resulting symptoms in hydrostatic systems may be:

Noisy operation.

1. 

lack of power or drive after short term operation.

2. 

High operation temperature and excessive 

3. 

expansion of oil.
Shortened component life.

4. 
Before starting, make sure the pump is at the proper 
oil level. If not, fill to the specifications outlined prior.
The following procedures are best performed with the 
vehicle drive wheels off the ground, then repeated 
under normal operating conditions.

disengage the brake if activated.

1. 

With the bypass valve open and the engine 

2. 

running at fast idle, slowly move the steering 
control in both forward and reverse directions (5 
or 6 times). As air is purged from the unit, the oil 
level will drop.
With the bypass valve closed and the engine 

3. 

running, slowly move the steering control in both 
forward and reverse directions (5 to 6 times). 
Check the oil level and add oil as required after 
stopping the engine.
It may be necessary to repeat Steps 2 and 3 until 

4. 

all the air is completely purged from the system. 
When the transaxle operates at normal noise 
levels and moves smoothly forward and reverse 
at normal speeds, the transaxle is considered 
purged.
After the vehicle has been used two times, the oil 

5. 

level should be checked while the oil is cold and 
adjusted accordingly.

8058-020