Hardi COMMANDER TWIN FORCE Series, Instruction Book

Page: 88 / 110

6 - Maintenance
6.24
A= Pressure port
B= Return port
D= Drain port
P1= Connector for working pressure measurement
P2= Connector for feed pressure
R= Adjustment Screw for feed pressure
S= Suction port
The transmission feed and working pressure are checked as follows:
1. Connect a 40 bar (580 p.s.i.) pressure gauge to the feed pressure
connector P2, and a 400 bar (5800 p.s.i.) pressure gauge at the wor-
king pressure connector P1.
2. Set the tractor P.T.O. at 540/1000 r.p.m. - check with tachometer.
3. Set the blower at max. speed.
4. Check the feed and working pressure:
Feed pressure P2: 15-20 bar (218-290 p.s.i.)
Working pressure P1 (approx.):
18 m: 180 bar (2610 p.s.i.)
20 m: 190 bar (2755 p.s.i.)
21 m: 200 bar (2900 p.s.i.)
24 m: 240 bar (3721 p.s.i.)
27 m: 240 bar (3721 p.s.i.)
28 m: 240 bar (3721 p.s.i.)
30 m: 240 bar (3721 p.s.i.)
Adjust feed pressure if necessary. Failure to reach feed and working
pressure indicates that the transmission needs overhauling.
Fan transmission pressure adjustment