SECTION 5 MAINTENANCE INSTRUCTIONS
5-12 DD-29/31HF/38HF Vibratory Asphalt Compactors
Prior to cleaning:
1. Remove any material jammed between the scrapper (1, Figure 5-10) and drum
(2).
Figure 5-10
2. Clean the vacuator valve (3, Figure 5-9) and inspect the rubber for cracks.
Replace as required.
After cleaning:
1. Remove all material added for protection from water entry.
2. Grease fittings immediately with the exception of the optional self lubricating
bearings.
3. Check for defects in the air cleaner ducts and correct as required.
4. Check air intake for accumulation of debris that could restrict air flow and clear
the air intake.
5. Check air cleaner mounting hardware for security and correct as required.
6. Check all hoses for cracks, chafing or deterioration and replace at the first sign
of probable failure.
Torque Loose Bolted Connections
1. Properly torque all loose nuts or bolts found during the daily inspection.
Refer to Section 9, TORQUE SPECIFICATIONS.
2. Replace self locking nuts if they have been loosened.
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