Preventive Maintenance; Troubleshooting Guide - Pig DRM655 Manual

7 Preventive Maintenance

1. Clean Bowl Filter — Keep air dry
2. Add a small amount of air tool oil or lightweight machine oil to air line.
Note: An automatic filter/lubricator/oiler may be added to the air line on the unit, but do not over-oil.
3. Check hydraulic oil level. Should be within approximately 1" from top of filler hole. Use a general-purpose mediumweight hydraulic fluid.
4. Check for loose nuts, bolts and pins.
5. Check Ram Plate to ensure that it is secured to the hydraulic cylinder shaft. Run unit empty to full extension of the hydraulic cylinder.
Allow the unit to build full pressure, this will lock the cylinder in place so that it can be tightened or removed. Caution — Loosen set
screw before attempting to tighten or remove ram plate.

8 Troubleshooting Guide

Hydraulic pump runs, but ram will not move.
a. Low air pressure — Air pressure should be between 80 psi and 120 psi.
b. Hydraulic fluid is low — Use a mediumweight hydraulic fluid and fill to within 1" of the top of filler hole with the ram
in the up position.
c. Water and dirt in the air supply — Drain water and clean filter bowl. Add a small amount of air tool oil or lightweight
machine oil to the air line.
d. Up and down lever is not fully engaged — Make sure lever is moved completely to the up or down position.
e. Breather cap on the hydraulic pump is closed — Open cap.
Waste pump runs, but will not pump.
f. Check hoses for obstructions.
g. Check filter screen and clean.
Pump will not run.
h. Check air supply.
i. Add a small amount of air tool oil or lightweight machine oil to the air line.
Hydraulic pump will not run.
j. Check air supply — Air pressure to unit should be between 80 psi and 120 psi.
k. Water and dirt in the air supply — Drain water and clean filter bowl. Add a small amount of air tool oil or lightweight machine oil to
the air line.
l. Safety cover micro is not fully engaged — Make sure it is fully closed.
m. Safety cover micro is out of alignment — Adjust micro so it is fully engaged when cover is in the closed position.
n. Tilt micro is not fully engaged — Make sure the compactor is in the upright position and the locking pins are fully extended and
depressing the micro.
o. Tilt micro is out of alignment — Adjust micro so it is fully depressed when compactor is in the upright position and the locking pins
are fully extended.
Loose Ram Plate
p. Ram plate is loose — Run the compactor empty to full extension of hydraulic cylinder. Allow unit to build full pressure, this will lock
the cylinder in place so it can be tightened or removed.
CAUTION: Loosen set screw before attempting to tighten or remove ram plate.
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