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PAGE 32 — AR13D RIDE-ON TANDEM DRUM ROLLER — OPERATION & PARTS MANUAL — REV. #2 (09/15/11)
AR13D RIDE-ON ROLLER — MAINTENANCE
Removing and Replacing Hydrostatic Pump
1. Set the parking brake.
2. Disconnect the battery.
3. Clean the pump and all connections.
4. Mark and disconnect all hoses and lines from the pump.
5. Disconnect the forward / reverse control cable.
6. Disconnect the pump support bracket.
7. Remove the engine mounting bolts.
8. Elevate the pump and engine assembly using a proper
lifting device.
9. Disconnect and remove the hydrostatic pump assembly.
10. Repair or replace the hydrostatic pump as required.
11. Install the hydrostatic pump in the reverse order of removal,
using
Locktite 271
on all mounting bolts and nuts.
12. Test operate. Test and adjust the forward and reverse relief
pressures as required. Adjust the forward / reverse control
cable.
Removing and Replacing Vibration/Steering Pump
1. Remove the hydrostatic pump as per preceding instructions.
2. Remove all hoses and lines.
3. Disconnect the vibration / steering pump and remove.
4. Repair or replace pump as required.
5. Install the pump in the reverse order of removal, using
Locktite 271
on all mounting bolts and nuts.
6. Test operate. Test and adjust the forward and reverse
pressure relief valves as required. Adjust the
forward
/
reverse control cable
. Test and adjust the vibration and
steering pressure relief valves as required.
Drums and Main Frame
The front drum is designed to apply vibration and compaction
force to the operating surface for compaction. This vibration and
compaction force is produced when the vibrator shaft is rotated.
Maximum efficiency is achieved only when the engine is operated
at full throttle.
A single drive motor is mounted on the left side of the drum and
is shockmounted. This type of drive motor is designed for
maximum torque and power.
The vibrator is driven by a gear motor coupled to the vibrator
shaft. The vibrator assembly rotates inside of a sealed housing
containing oil to lubricate the bearings. This side of the drum is
also shock mounted.
Front and Rear Drum Removal and Disassembly.
The removal and disassembly of the front and rear drums shall
be referenced by Figures 37, 38, and 39 on the following pages.
When reassembling the front drum use
Loctite 271
on all
mounting hardware.