63
Cylinder
leakage,
damage condition
○
master cylinder, piston
cup,
check
valve
abrasion
damage
condition, replace
×
Brake
drum and
brake
shoe
If brake drum parts
loosen
Test
hammer
○
○
○
○
Friction plate abrasion
condition
Slide
caliper
○
Brake
shoe
action
condition
○
If fixed pin rusts
○
Return spring damage
condition
Dividing
rule
○
Check if self-adjusting
device operation time
is proper
○
Brake drum abrasion,
damage condition
○
Brake
baseboard
Check if baseboard
deforms
○
Check if crack
Flaw
detection
○
Check if loosen during
installation
Test
hammer
○
Hydraulic system periodical maintenance schedule
Check
item
Service required
Tools
Daily
(8 hrs)
One and a
half
Monthly
(250hrs)
3months
(500hrs)
Semi-annual
(1000hrs)
Annual
(2000hrs)
Hydraulic
oil tank
Check
Hydraulic
oil
and replace
○
○
○
○
×
Clear oil absorption
filter element
○
○
Replace oil return
suction strainer
（
1
）
○
×
Eliminate foreign body
○
○
Control
valve rod
If connection loosens
○
○
○
○
○
Operation condition
○
○
○
○
○
Filter
Check oil leakage
○
○
○
○
Multi-way
valve
Oil leak
○
○
○
○
○
Relief valve and tilt
latching
valve
operation condition
○
○
○
○
