Allied HO-PAC 1000 Series, Technical Manual, Page: 29 / 50

1000 Series Ho-Pac
11.4 Conditional Maintenance
Clean and lubricate all Ho-Pac working
surfaces under the following conditions:
•
The Ho-Pac is operated in
extremely humid weather
conditions.
•
The Ho-Pac is operated in muddy
or extremely wet soils.
•
If reduced performance is
observed.
11.5 Lubrication
During operation, the Allied 1000 Ho-Pac
bearings are continuously lubricated from
an oil bath within the eccentric housing.
The sealed eccentric housing contains and
protects the oil from environmental debris.
The oil fill and oil level locations are
identified in Section 4.3.
•
Under normal operating conditions,
minimal maintenance is necessary.
Refer to Sections 11.2 and 11.3.
•
During extreme operating
conditions or extended continuous
use, check the oil level and quality
more frequently.
A premium quality, 10W oil is
recommended (minimum 30 cSt at 155°
F). All hydraulic oils recommended for
carrier use are suitable for Ho-Pac use.
11.5.1 How To Drain Oil
1. Position Ho-Pac with the oil level plug
pointed downward so that oil will drain.
2. Remove oil level plug and drain oil.
3. If the oil is contaminated with water or
dirt, flush the eccentric housing with clean
oil prior to oil replacement.
4. Add new oil. Refer to Section 11.5.2.
5. Properly dispose of used oil.
11.5.2 How To Check and Add Oil
1. Position Ho-Pac on a level surface with
easy access to both the oil fill and oil level
plugs.
2. Carefully clean and remove the oil level
plug.
3. Check the oil level. When properly
filled, the oil level shall be at the bottom of
the oil level opening. Oil capacity is
approximately 2.2 quarts (2.1 l). Do not
overfill.
Oil Level Plug
Proper
Oil
Level
4. If oil is required:
•
Carefully clean and remove the oil
fill plug.
•
Add oil until the level reaches the
bottom of the oil level opening.
5. Replace and tighten both the oil fill and
oil level plugs.
11.5.3 Oil Pressure Relief Valve
The eccentric housing is equipped with a
pressure relief check valve. This check
valve is located near the top of the
eccentric housing and relieves pressure
from the eccentric housing. A slight
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