SANY SCC1000C - Main Hoisting Winch - Checking the Brake

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Section 1 Maintenance
SCC1000C Crawler Crane — Maintenance Manual
WARNING
CAUTION
Position of Main Hoisting Winch Brake (Built-In)
7�1�4 Main Hoisting Winch - Checking the Brake
-- The performance of the braking disc of the
hoisting winch must be regularly checked to
ensure normal braking.
-- Before restarting the work, replace all defective
components, and clean the brake.
If oil stains on the brake plates cannot be
completely erased, these plates must be replaced.
-- Replace the brake immediately if any
defect is found in it�
-- Such work can only be carried out by
trained and experienced professionals�
If the brake cannot work well, it may lead
to accidents�
Procedures for checking the performance of the hoisting winch brake:
1. Start the engine, and run at a speed slightly higher than idle speed.
2. Load the corresponding hoisting winch with the max. load the rope can bear.
3. Operate the handle backwards to completely lift up the load.
4. Operate the corresponding winch handle to the neutral position.
5. Mark “X” on the winch drum and a corresponding "X" on the bracket.
6. Operate the upperworks to make the load freely suspended in the air for about 2-3 minutes.
7. During this period, do not operate the winch drum. The sign “X” on the winch drum must be consistent
with the sign “X” on the bracket, otherwise, check the winch brake.
Hydraulic motor
Brake
T103 3004
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