P 10
of
17
P 11
of
17
TL/TN-775 M
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eT
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The
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NOTE:
Rear track pump is designated for LEFT track and Forward track pump is designated for RIGHT track.
SETTING THE POR (PRESSURE-OVER-RELIEF) / HIGH-SIDE PRESSURE
1. Install pin at track final drive to ensure safety while performing pressure settings on machine. See Figure 1 on Page A3
for pin installed location on track.
WARNING
NOT INSTALLING AN APPROPRIATELY SIZED PIN AT THE FINAL DRIVE COULD CAUSE SERIES DAMAGE TO THE MACHINE AND
CAUSE INJURY TO PERSONNEL.
Main Relief Valve
POR/High-Side
MH Test Port
FIGURE 1, TRACK DRIVE
2. Install a 10,000 psi gauge into the MH Test Port on the track drive. See Figure 1 above for MH Port.
3. Turn the POR all of the way in. See Figure 1 above for location.
IMPORTANT
DO NOT BOTTOM OUT WHEN TURNING THE POR/HIGH-SIDE VALVE IN.
4. Once the POR is all of the way in, back out 1/2 turn.
5. Start the machine, check the gauge, and ensure that the pressure is between 400 - 450 psi of charge pressure.
6. Run the engine rpm’s up to a minimum of 1500rpm.
TRACK DRIVE MAIN RELIEF VALVE PRESSURE ADJUSTMENT
The track drive Main Relief pressure settings need to be set/adjusted for the left and right track. There are two Main Relief
Valves per track drive pump and there are two pumps per machine. See Figure 1 above for track drive pump and main relief
valve location. On each pump, one Main Relief Valve is designated for forward operation and the other is designated for
reverse operation. The track drive pumps are mounted to the triple drive at the engine.
The rear track drive pump is designated for the left track, and the front pump is designated for the right track.
S
ecTioN
8
