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Use and Care Manual

ManualsBrandsTomahawk Power ManualsOutdoor Power Equipment1.5-Ton Asphalt Roller with 20.8 HP Honda Engine 2300 lbs. Double Drum Road Roller for Compaction
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21
Manually Releasing the Parking Brake
There are two drive motors on the roller—one on each drum. Each drive motor includes a
parking brake that is spring activated and hydraulically released (SAHR).
NOTICE: To avoid damaging the internal mechanism, do not use
power tools to release or reactivate the brakes.
Note: This procedure must be performed on both drums.
To manually release the brakes:
1. Chock each drum to prevent the machine from moving.
2. Lock the articulated steering joint. See section Articulation Joint Lockarm.
3. Using an 8mm Allen wrench, remove the plugs (a) in order to access the release screws
(b).
4. Using a 6mm Allen wrench, press and turn each release screw in until its threads catch
in the brake plate (d). Tighten each release screw alternately until the spring (c) on each is
fully compressed. You will feel a substantial difference in the amount of torque required to
turn the screw once its spring is fully compressed.
5. Continue to tighten (turn clockwise) the two release screws to compress the brake plate
springs. Alternate back-and-forth between the two screws, turning approximately 45° at a
time, until the drums are no longer held by the brake plate. The brake plate should release
after turning each screw approximately two (2) turns.
NOTICE: Maximum torque for the release screws is 33 Nm (24.3
ft.lbs.). Overtightening the release screws can destroy the internal
mechanism.
6. Manually turn the drum to test if the brake is released.
7. Replace the plugs, tightening them to a maximum torque of 60 ± 6 Nm (44.2 ± 4.4
ft.lbs.).
To reactivate the brakes, carry out the following procedure on both drums.
8. Remove the plugs (a).
9. Alternating between the two release screws (b), completely loosen them until the brake
plate is disengaged.
10.Replace the plugs, tightening them to a maximum torque of 60 ± 6 Nm (44.2 ± 4.4
ft.lbs.).
Note: After repair, ensure that the releasing screws are back in the normal operating
position.
Note: Replacement drive motors come with the brakes in the ON position.