STEP 4
Is load sensing valve adjusted correctly and supplying 30 to 125 ± 5 psi (207 to 861 ± 34 kPa)?
1.
Disconnect load sensing valve control rod from axle (WP
0080).
2.
Have assistant turn engine start switch to ON. Refer to vehicle Operator's manual (WP
0190).
3.
Push in trailer charge valve in vehicle. Refer to vehicle Operator's manual (WP
0190).
4.
Perform ICE Test 50.
5.
While assistant fully applies brake pedal, push up on control rod and observe meter. Refer to vehicle Operator's
manual (WP
0190).
6.
Meter should display 125 ± 5 psi (861 ± 34 kPa).
CONDITION/INDICATION
Is load sensing valve adjusted correctly and supplying 30 to 125 ± 5 psi (207 to 861 ± 34 kPa)?
DECISION
Yes - Go to (Step 5 - Is load sensing valve adjusted correctly and supplying 30 to 125 ± 5 psi (207 to 861 ± 34
kPa)?).
No - Replace load sensing valve (WP
0080). Go to (Step 10 - Is braking distance correct in response to vehicle?)
to verify problem is solved.
STEP 5
Is load sensing valve adjusted correctly and supplying 30 to 125 ± 5 psi (207 to 861 ± 34 kPa)?
1.
Perform ICE Test 50.
2.
While assistant fully applies brake pedal, push down on control rod and observe meter. Refer to vehicle
Operator's manual (WP
0190).
3.
Meter should display 30 ± 5psi (207 ± 34 kPa).
CONDITION/INDICATION
Is load sensing valve adjusted correctly and supplying 30 to 125 ± 5 psi (207 to 861 ± 34 kPa)?
DECISION
Yes - Go to (Step 6 - Does quick release valve exhaust air when brake pedal is released?).
No - Replace load sensing valve (WP
0080). Go to (Step 10 - Is braking distance correct in response to vehicle?)
to verify problem is solved.
STEP 6
Does quick release valve exhaust air when brake pedal is released?
1.
Release brake pedal. Refer to vehicle Operator's manual (WP
0190).
2.
Pull out trailer charge valve in vehicle. Refer to vehicle Operator's manual (WP
0190).
WARNING
If air lines are disconnected when they are under 125± 5 psi (862± 34 kPa) pressure, they
can whip around. Care should be exercised when disconnecting an air hose that is thought
to be under pressure. Be sure to wear proper eye protection. Failure to comply may result in
injury or death to personnel.
3.
Have assistant turn engine start switch to OFF. Refer to vehicle Operator's manual (WP
0190).
4.
Disconnect TK pressure transducer (blue stripe) from air hose 2660.
5.
Connect air hose 2660 to quick release valve.
6.
Connect control rod to axle (WP
0080).
7.
Adjust load sensing valve (WP
0080).
TM 9-2330-342-23&P
0034
0034-4