Maintenance
Section
4-24
AB38 Work Platform
4.17
CLEANING AND INSPECTION
1.
Clean all metal parts in solvent and blow dry
with filtered compressed air.
2.
Check all threaded parts for stripped or
damaged threads.
3.
Check the bearing surfaces inside of the
headcap, outer edge surface of the rod &piston
assembly or inside of the cylinder barrel and the
shaft for signs of scoring, pits, excessive wear
or polishing. Scratches or pits deep enough to
catch a fingernail are unacceptable. Polishing is
a sign of uneven loading and if sufficiently
polished the affected parts should be replaced.
4.
Replace any parts or seals found to be
unserviceable.
REASSEMBLY/SEAL REPLACEMENT
Note:
During seal replacement do not use
sharp edged tools to avoid cutting the seals, and
allow at least one hour for the seals to elastically
restore to their original shape before assembly.
1.
Lubricate and install new rod seal, rod wiper
and static seal on the headcap.
NOTE:
Multi-purpose lubricant should be used.
2.
Install a new piston seal on the piston.
3.
Install the headcap on one end of the cylinder
barrel.
4.
Lubricate the piston seal and install the rod &
Figure 4-19: Steer Cylinder
piston assembly in the barrel tube.
6.
Thread the headcap onto the free end of the
barrel tube and hand tighten, then turn 1/4 turn
further.
INSTALLATION
NOTE:
Before installing the Steering Cylinder check
cylinder pins and bearings for wear and replace if
necessary.
1.
While supporting the cylinder replace the four
washers and bolts at the front panel of the
AB38’s chassis.
2.
Move the steering arm so that the holes for
positioning the pins are correct. Install each
of the steering pivot pins and ensure that the
circlips are attached properly.
NOTE:
Take care in aligning the holes so that
the pin can be pushed in by hand. If holes are
not properly aligned and the pin is forced in, the
bearings will be damaged.
Torque these four bolts to 70 Nm (52 ft. lbs).
3.
Reconnect the hydraulic hoses.
4.
Test system operation by carrying out a ‘figure
of eight’ driving pattern for 5 cycles. This should
be sufficient to prove proper function.
Figure 4-20: Master Levelling Cylinder
1.
Steering Cylinder
2.
Steering Link Arm
3.
Torque Arms
4.
Steering Pivot Pins
5.
Circlip
3
2
4
5
1
1.
Bushings
2.
Circlip
3.
Barrel End Pivot Pin
2
3
5
4
6
4.
Master Levelling
Cylinder
5.
Pin Lock Plate
6.
Rod End Pivot Pin
1
Summary of Contents for AB38
Page 2: ...ii AB38 Work Platform NOTES...
Page 4: ...ii AB38 Work Platform NOTES...
Page 6: ...iv AB38 Work Platform NOTES Foreword...
Page 10: ...Contents Section IV AB38 Work Platform i NOTES...
Page 14: ...Introduction Specifications Section 1 4 AB38 Work Platform NOTES 1 3...
Page 17: ...Machine Preparation Section 2 3 AB38 Work Platform NOTES 2 7...
Page 18: ...Machine Preparation Section 2 4 AB38 Work Platform 2 7 NOTES...
Page 29: ...Operation Section 3 11 AB38 Work Platform NOTES 3 5...
Page 30: ...Operation Section 3 12 AB38 Work Platform NOTES 3 5...
Page 59: ...Maintenance Section 4 29 AB38 Work Platform NOTES 4 21...
Page 60: ...Maintenance Section 4 30 AB38 Work Platform NOTES 4 21...
Page 66: ...Troubleshooting Section 5 6 AB38 Work Platform 5 7 NOTES...
Page 68: ...Schematics Section 6 2 AB38 Work Platform NOTES 6 0...
Page 72: ...Schematics Section 6 6 AB38 Work Platform 6 1 NOTES...
Page 73: ...Electrical Schematic Schematics 6 7 AB38 Work Platform Section 6 1...
Page 74: ...Electrical Schematic Schematics 6 8 AB38 Work Platform Section 6 1 TOP VIEW...
Page 76: ...Schematics Section 6 10 AB38 Work Platform NOTES 6 2...
Page 78: ...Section 6 2 6 12 AB38 Work Platform Schematics NOTES...
Page 81: ...Illustrated Parts Breakdown Section 7 3 AB38 Work Platform 7 2...
Page 83: ...Illustrated Parts Breakdown Section 7 5 AB38 Work Platform 7 2...
Page 85: ...Illustrated Parts Breakdown Section 7 7 AB38 Work Platform 7 2...
Page 87: ...Illustrated Parts Breakdown Section 7 9 AB38 Work Platform 7 2...
Page 89: ...Illustrated Parts Breakdown Section 7 11 AB38 Work Platform 7 2 22...
Page 91: ...Illustrated Parts Breakdown Section 7 13 AB38 Work Platform 7 2...
Page 93: ...Illustrated Parts Breakdown Section 7 15 AB38 Work Platform 7 2...
Page 95: ...Illustrated Parts Breakdown Section 7 17 AB38 Work Platform 7 2...
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Page 107: ...Illustrated Parts Breakdown Section 7 29 AB38 Work Platform 7 2...
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Page 119: ...Illustrated Parts Breakdown Section 7 41 AB38 Work Platform 7 2 8 9...
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Page 127: ...Illustrated Parts Breakdown Section 7 49 AB38 Work Platform 7 2...
Page 131: ...Illustrated Parts Breakdown Section 7 53 AB38 Work Platform 7 2 NOTES...
Page 133: ...Technician s Print AB38 Work Platform Electrical Schematic...