SkyTrak 6036 Service Manual - Manual (Page 174)

Hydraulic System
8-22 6036, 6042, 8042, 10042, 10054
d. Load Sense Relief Adjustment
1. With park brake on and engine at high idle
(2650 rpm), fully retract boom hoist cylinder and
hold. Check main pump maximum pressure tap (4).
Measurement range 3400–3500 psi (234,241 bar)
2. Adjust main pump maximum pressure (7) as
necessary. (load sense relief (6) may need to be
turned up two turns to achieve pressure first)
3. With park brake on and engine at high idle
(2650 rpm), fully retract boom hoist cylinder and
hold. Check load sense relief pressure tap (5).
Measurement range 2950–3050 psi (203–210 bar).
4. Adjust main load sense relief (6) as necessary.
5. With park brake on and engine at high idle
(2650 rpm), fully retract boom hoist cylinder and
hold. Check pump maximum pressure at main valve
pressure tap (4). Measurement range 3050–3150
psi (210–217 bar).
6. Adjust pump maximum pressure (7) as necessary.
7. With park brake on and engine at high idle
(2650 rpm), fully retract boom hoist cylinder and
hold. Check load sense relief pressure tap (5).
Measurement range 2950–3050 psi (203–210 bar).
MAQ1090
4
6
5
7
REXROTH PUMP
MAQ1120
4
6
7
5
SAUER PUMP
MAQ1130
4
6
7
5
EATON PUMP