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 Table 2-1.
Preventive Maintenance Checks and Services - CONT
D - Daily
M - Monthly
Q - Quarterly
S - Semiannually
A - Annually
B - Biennially
Item
Items To Be
Interval
Procedures
No.
Inspected/Serviced
D
M
QS
A
B
7
Return Filter Element
Change return filter element in hydraulic power pack
assembly as follows:
(1)
Turn off electric motor in power pack assembly as follows:
(2)
Locate the return filter on top of the hydraulic power
pack assembly.
(3)
Place a suitable container under the return filter.
(4)
Turn return filter counterclockwise until it is removed.
(5)
Remove gasket and filter element from return filter.
(6)
Install gasket and filter element in return filter.
(7)
Install return filter by turning it clockwise until snug.
(8)
Remove "Out of Service - Do Not Operate" tags from
three control units. Turn on electric motor in hydraulic
power pack assembly.
(9)
Read hydraulic fluid level on hydraulic level indicator.
If level is below full mark, add hydraulic fluid to full mark.
2-10
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