Case 580SR Service Manual page 172

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2.4 PRESSURE SPECIFICATIONS AND CHECK POINTS
Normal operating temperature 70 - 120 °C meas-
ured at temperature check port to cooler.
Maximum allowed
120 °C.
Transmission regulator pressure (*) - (neutral 2nd
speed).
Z at 600 rpm: 16.5 bar.
Z at 2200 rpm: 19.6 - 23.1 bar.
Pump delivery (*):
Z at 2200 rpm in neutral 2nd speed: 64.9 l/min mini-
mum.
Z at 2200 rpm in reverse 1st, 2nd, forward 1st, 2nd
maximum 3 l/min less than in neutral 2nd.
Z at 2200 rpm in forward 3rd and 4th: maximum 5 l/
min less than in neutral 2nd.
Clutch pressures (*) at 2200 rpm:
Z 18.1 - 21.5 bar clutch activated.
Z 0 - 0.2 bar clutch released.
A. Front view
B. Rear view
1. Dipstick hole M27 x 2.5
2. Pressure check port forward hi clutch (forward
3rd and forward 4th) 18.1-21.5 bar
3. Pressure check port from cooler (lube pressure)
4. Pressure check port forward port forward low
clutch (forward 1st and forward 2nd)
SECTION 21 - TRANSMISSION
transmission temperature
A
1
Filter by-pass valve set to 4.1 - 5 bar (*).
Lube pressure (*) 0.3 - 0.5 bar at 47 l/min pump flow
(±1800 rpm).
Internal leakage (*) 1.5 - 3.0 l/min for each clutch.
Maximum total leakage 6.8 l/min (clutch leakage +
range + converter leak + valve leak) without discon-
nect clutch.
Safety valve: cracking pressure (*) 9.5 - 10.5 bar.
To cooler (converter out) pressure (*) 2 bar mini-
mum at 2000 rpm and maximum 5 bar at no load
governed speed.
Converter by-pass valve set to 5-7 bar (*).
(*) All pressures and flows to be measured with oil
temperature of 82 - 93 °C.
2
3
4
5
6
7
8
5. To cooler 18.1-21.5 bar
6. Pressure check port reverse clutch (reverse
1st and reverse 2nd) 18.1-21.5 bar
7. Pressure check port 1st clutch (forward 1st, for-
ward 3rd, reverse 1st) 18.1-21.5 bar
8. From cooler
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