3-10
AB62 Work Platform - European
M
AINTENANCE
Section
3.9
3.9 S
ETTING
H
YDRAULIC
P
RESSURES
Figure 3-14 shows complete hydraulic manifold
assembly.
NOTE: Check hydraulic pressures whenever the
pump, manifold, or any relief valve has been
serviced or replaced.
High Flow Relief Valve (#5)
1. Operate the hydraulic system 10-15 minutes to
warm the oil.
2. Install a 0-3000 PSI pressure gauge to the pres-
sure test port #3-using Part # 063965-002, Quick
Disconnect Adapter.
3. Retract boom completely.
4. While activating the boom retract function, set the
pressure to 186 bar (2700 PSI) maximum by
slowly turning the adjusting screw. Turning the
adjusting screw clockwise increases pressure;
counterclockwise decreases pressure.
5. Remove the pressure gauge, and reinstall all
plugs.
Low Flow Relief Valve (#9)
1. Operate the hydraulic system 10-15 minutes to
warm the oil.
2. Install a 0-207 bar (0-3000 psi) pressure gauge to
the pressure test port.
3. Completely extend jib function.
4. Continue activating function and set the pressure
to 97 bar (1400 psi) by slowly turning the adjust-
ment screw. Turning the adjusting screw clock-
wise increases pressure; counterclockwise
decreases pressure.
5. Remove the pressure gauge, and reinstall all
plugs.
Counterbalance Relief Valves
1. If any counterbalance relief valve is faulty, com-
pletely lower the jib, and retract the boom.
2. Replace or recalibrate the counterbalance valve.
3. Slowly cycle function related to replaced counter-
balance valve several times to remove air from
the system.
Summary of Contents for ab62
Page 1: ......
Page 4: ...ii AB62 Work Platform European FOREWORD NOTES ...
Page 42: ...3 24 AB62 Work Platform European MAINTENANCE Section 3 13 NOTES ...
Page 56: ...4 14 AB62 Work Platform European TROUBLESHOOTING Section 4 4 Notes ...
Page 61: ...AB62 Work Platform European 5 5 SCHEMATICS Section 5 1 Notes ...
Page 75: ...Page 6 5 Illustrated Parts Breakdown AB62 Work Platform European NOTES ...
Page 77: ...Page 6 7 Illustrated Parts Breakdown Basic Assembly AB62 Diesel AB62 Work Platform European ...
Page 79: ...Page 6 9 Illustrated Parts Breakdown Chassis Assembly AB62 Work Platform European ...
Page 81: ...Page 6 11 Illustrated Parts Breakdown Front Axle Assembly AB62 Work Platform European ...
Page 83: ...Page 6 13 Illustrated Parts Breakdown Elevating Assembly AB62 Work Platform European ...
Page 85: ...Page 6 15 Illustrated Parts Breakdown Linkage Assembly AB62 Work Platform European ...
Page 87: ...Page 6 17 Illustrated Parts Breakdown Straight Boom Assembly AB62 Work Platform European ...
Page 89: ...Page 6 19 Illustrated Parts Breakdown AB62 Work Platform European NOTES ...
Page 91: ...Page 6 21 Illustrated Parts Breakdown Turret Assembly AB62 Work Platform European ...
Page 95: ...Page 6 25 Illustrated Parts Breakdown AB62 Work Platform European NOTES ...
Page 97: ...Page 6 27 Illustrated Parts Breakdown Cover Assembly AB62 Work Platform European ...
Page 103: ...Page 6 33 Illustrated Parts Breakdown AB62 Work Platform European NOTES ...
Page 111: ...Page 6 41 Illustrated Parts Breakdown Control Module Assembly AB62 Work Platform European ...
Page 139: ...Page 6 69 Illustrated Parts Breakdown Label Kit AB62 Diesel AB62 Work Platform European ...
Page 144: ...Page 6 74 Illustrated Parts Breakdown AB62 Work Platform European NOTES ...
Page 145: ......