Coleman POWERSPORTS HS360ATV Owner's Manual page 146

Table 2 Checks and Solutions to Common Problems in the Brake System .
：
S/N Problems
Brake system is locked
1
up.
Brake performance goes
2
down.
Periodic Maintenance and Adjustment
oil leakage.
3.Change for new bottom protection plate.
1.Check if the brake discs are deformed.
2.Check if caliper hydraulic cylinders are stuck, or the fixing
parts of calipers are deformed.
1. Check if the brake discs are past the wear limit.
2. Check if brake caliper pads are past the wear limit, or
contaminated by debris which can reduce friction.
3.Check if there is leakage in the brake system's oil lines or
junctions.
4.Check if the post rod in the brake master cylinder is
deformed.
Solutions
8-48