E-Z DRILL 210-3 EQ MT Guide

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT

SAFETY PRECAUTIONS FOR THE
MODEL 210-3, -4, -5 EQ MT
System Under Pressure: Shut off air supply and disconnect air
hose before disassembling or disconnecting parts.
Flying Debris: During boring, chips may be ejected. Stay behind
control panel and wear safety glasses to prevent eye injury.
Pinch Points: Keep hand clear of carriage assembly. Hands or
fingers caught between carriage and frame may be seriously injured.
Moving Parts: When moving drill unit, use carriage lock to
prevent assembly from sliding onto hands or fingers.
Heavy Load: Make sure all carriage locks are in place, and the
swivel brake is engage.

SAFETY PRECAUTIONS FOR THE
MODEL 210-3, -4, -5 EQ MT (continued)
Loud Noise: Wear ear protection to prevent eardrum damage
from air compressor.
Dust: Wear a dust protection mask to protect from concrete dust.
High Pressure: High pressure from the air compressor can
damage the drill, and can void the warranty.

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
•Check bolts daily for tightness.
Due to the extreme amount of
vibration, bolts will loosen. It is
important keep nuts and bolts
tight.
EXCEPTION: The two ½” x 4”
bolts that connect the upper drill
bracket and the lower drill bracket
can be too tight. There should be
a gap between the two brackets.
When tightening these bolts, put a
drill bit in the chuck and turn it as
you tighten the nuts. At some
point, it will “catch” or “drag” while
turning the bit. This means the
bracket is too tight. Loosen the
nuts until you can turn the bit
freely, the tighten the ½” lock nuts.

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
•Check all nuts and bolts around
the carriage assembly daily.
Tighten as needed.
•Allowing bolts or connections to
work loose may disqualify any
warranty on these parts.

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
•Check all nuts and bolts on the
rock drill daily.
IMPORTANT: If a nut on one of
the thru bolts gets loose, or if a nut
on one of the trunnion bolts gets
loose, it will cause the other one
that is tight to break.

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
•Check all stop rods and stop rod
nuts daily and keep them tight.

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
•Check nuts and bolts on all frame
clamps daily.

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
DO NOT REMOVE CAP
UNDER PRESSURE !
(to remove pressure from system, have air
supply disconnected from drill unit, and turn
the power switches to the “On” position)
•Push relief button next to oil cap to
relieve pressure in the oil tank.
•Fill the oil reservoir daily with the
recommended rock drill oil (do not
use oil that is too light, such as
Marvel Mystery Oil, automatic
transmission fluid, air tool oil, etc.).
Running the oil tank dry can cause
damage the drill motors and drive
motors, and requires that you
bleed any air out of the oiler and
oil lines.
• (See “Recommended Specifications
for Rock Drill Lubricant”)

RECOMMENDED SPECIFICATIONS FOR ROCK DRILL
LUBRICANT
The use of synthetic oils is NOT RECOMMENDED due to possible damage to seals, “O” rings, hoses, blades, and polycarbonate oiler/filter bowls. Use
only a non-detergent, Class 2, pneumatic lubricating oil (viscosity 100-200 S.S.U. @ 100°F and minimum aniline point of 200°F); which contains no
synthetic additives; and which is compatible with Buna-N, Neoprene, Urethane, Silicone, and Hytrel components.
Consistency shall be such that the oil will adhere readily to metallic surfaces under extreme pressure conditions that exist in a rock drill.
Flash, Cleveland open cup…………………………………………………………..380°F Min. (a)
Carbon Residue………………………………………………………………………0-30% Max.
Viscosity at Atmospheric Temperature
Below 20°F………………………………………………………………… SAE #10
20°to 40°F………………………………………………………………… SAE #20
40°to 80°F………………………………………………………………… SAE #30
80°to 110°F……………………………………………………………….. SAE #40
Above 100°F………………………………………………………………. SAE #50
Mineral Activity……………………………………………………………………… None
Free Fatty Acid (as Oleic %)……………………………………………………… 0.40% Max.
ASTM Steam Emulsion No……………………………………………………….. 600 Max. (b)
Metallic Soaps……………………………………………………………………… None
Pour Point F………………………………………………………………………… +10 Max. (c)
Film Strength PSI
Almen Test……………………………………………………………….. 12,000 (d)
Weeks Test………………………………………………………………. 8,000 (d)
(a) Where lower than normal viscosity oil is used at extreme low temperature, 350°F flash point permissible.
(b) 1200+ desired where moisture is a major factor. Operator must compensate for foaming when filling the lubricator.
(c) For below normal atmospheric temperature operation, lower pour test product may be required.
(d) Desired values, not minimum. Rock drill oils must have appreciably greater load carrying ability than straight mineral oils of like viscosity. High film
strength is required by the heavy rotational loads present in drilling conditions. Additives which impart extreme pressure characteristics to the oil must
be non-corrosive to the drill mechanism.

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
•Grease all grease zerts daily:
Hinges
Pivots

MAINTENANCE FOR THE
MODEL 210-3, -4 , and -5 EQ MT
•Grease all grease zerts daily:
Mast

MAINTENANCE FOR THE
MODEL 210-3, -4, -5 EQ MT
•It is highly recommended that the concrete dust on the drill unit be
cleaned off daily to prevent it from hardening.
•For longer storage periods, flush the drill motors with a substance
that will prevent rust from forming due to moisture in the drills. Any
amount of rust can cause the cycling valve to seize. If this happens,
the drill motor generally has to be taken apart and cleaned
thoroughly before it will operate. Substances such rock drill oil,
Marvel Mystery Oil, or even diesel fuel can be used to flush the drill
motors.