4 - 6 DPL-25S • DPL-30S • DPL-35S Super Series Part No. 40462
September 2016
Section 4 - Scheduled Maintenance Procedures
A-12
Inspect the Lifting Chains and
Idler Wheels
Maintaining the lifting chains and idler wheels in
good condition is essential to safe machine
operation. Failure to find and replace damaged
chains or idler wheels could result in unsafe
operating conditions and may cause component
damage.
1 Raise the platform approximately 3 feet (1 m).
2 Visually inspect the chains and idler wheels
near the top of each column for the following:
• Excessive corrosion or contamination
• Broken or missing chain leafs and pins
• Tight or kinked joints in the chain
• Missing or damaged idler wheels and related
components
3 Inspect the chain terminations near the bottom
of each column to confirm that each termination
has a lock nut.
4 Inspect the chain terminations near the bottom
of each column to confirm that the chain
tensioner bracket is centered in the inspection
hole.
a chain tensioner bracket
b adjustment nut (hidden from view)
c termination rod (hidden from view)
d column
TABLE A PROCEDURES
A-13
Inspect the Breather Cap
The hydraulic reservoir is a breathing-type
reservoir. The breather cap has an internal air filter
that can clog and may cause the power unit to
operate improperly. If the breather cap is not
properly installed and checked daily, impurities can
enter the hydraulic system and cause component
damage.
1 Be sure the breather cap is installed on the
hydraulic power unit reservoir and is not
damaged. Do not remove it.
c
a
b
d
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