Gauge points TPA2 & TPB2 and/or TPB3 on the Stabilizer Manifold, TPPL & TPLS on the Interface Manifold

TM 5-5420-279-23

NOTE

650 psi (4500 kPa) is the pump standby (off load) pressure.

e. If there is no LS (load sense) pressure at the Interface Manifold then the shuttle valve(s) in

the pipe work are at fault.

If you get 650 psi (4500 kPa) at A and B this means solenoid valve is OK.

g. If pressure at LS pressure gauge is Zero, the Compensator is open so the back to back

check valves are at fault.

TSUM 2-001 A-Frame Unfold (13)(Part2),

TSUM 2-002 Uneven A-Frame Unfold (13)

TSUM 2-027 A-Frame Fold (Park)(122)(Part 2) and

TSUM 2-027 Uneven A-Frame Fold (Park)(122)

Gauge points TPA2 & TPB2 and/or TPB3 on the Stabilizer Manifold, TPPL & TPLS on the

Interface Manifold.

Gauge

Nothing

Operate Valve SV20to put

Operate Valve SV20 to put

Operated

Pressure to `A' Port (A-Frame

Pressure to `B' Port (A-Frame

Fold Park button depressed on

Fold Deploy button depressed

Operator Panel)

on Operator Panel)

653 psi

3480 psi

(4500 kPa)

(24000 kPa)

Unless limited

TPA2

2900 psi

by relief or

0 psi

(20000 kPa)

reducing valve

Unless limited by

TPB2

2900 psi

relief or reducing

and/or

0 psi

(20000 kPa)

valve

TPB3

2900 psi

TPLS

0 psi

(20000 kPa)

2-92