RHINO HCD 1-4, HCD 2-14 Operating Manual

1

Rhino

Rhino Tool Co. Inc.

®

Hydraulic Core Drill
HCD 1-4
HCD 2-14

Revised 6.14.2016

000386.08.25.16

620 Andrews Ave.
Kewanee, IL 61443

Tel: [phone]
Tel: [phone]
Fax: [phone]

[e-mail]
www.rhinotool.com

Prior to Operation

We thank you for choosing a
Rhino® core drill.

To ensure smooth operation
and long-lasting performance of
your new core drill, we re­commend you to study this
operating manual carefully and
pay special attention to the
chapters about

Safety and Service

Precautions

We are confident you will be
satisfied with your new Rhino®
core drill.

Best regards
Rhino® Tool Company

2

Contents

Page

Safety Precautions .............................................................................................. 2

Oil Flow and Pressure .......................................................................................... 4

Useful information regardi ng the use of core drill .................................................. 4

Starting Instructions ............................................................................................ 6

Technical Data .................................................................................................... 7

Performance Chart .............................................................................................. 8

Dimensions ......................................................................................................... 9

Connection to Hydraulic Power Sources .............................................................. 10

Service and Maintenance ................................................................................... 11

Oil Types .......................................................................................................... 11

Warranty Terms ............................................................................................... 13

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Safety Precautions

• Read the core drill and power source operating manuals pri or to use.

• Only use the core drill in accor da nc e with the local working regulations on

allowed working time

• Check the oil supply to the core drill. The oil supply may not exceed 5 g.p.m. (20 l.p.m.)
/max. 2500 psi (170 bar). Please refer to page 4.

• Make sure that the core bit is firmly fastened in the drill

• For handheld drilling, always use core bits approved for this purpose.

• The Rhino® core drill is supplied with a trigger lock. This may only be used when drilling in a

rig.

• The core drill has an automatic integ r ated clutch that makes the core drill stop if the core bit
jams. However, in case of jamming, always loosen the core bit from the material, before you
start drilling again. The integrated clutch is set from the factory and may not be disturbed.

• Start the core drill just before you start drilling, and stop it once the drilling is done. Do not
let the core drill run freely in the air.

• In case of horizontal drilling or drilling above the head, always be aware of falling debris.

• A fine jet of oil at high pressure can penetrate th e sk i n . It is therefore i mportant never t o

use your fingers to check for oil leaks and never to hold your face close to suspected leaks –
use a piece of cardboard instead. If oil has penetrated the skin, you should get medical
treatment immediately.

• Never leave the core drill unattached when connected to the powerpack.

• Always use approved hoses. Contact your dealer, if necessary. Mount the hoses correctly so

that the core drill rotates in the correct (clockwise) direction.

• The operator must pay extra attentio n and sho w caution when working in difficult wo r ki ng
areas, such as slopes and o ther dangerous environment. Do not reach too far with the core
drill, but always maintain a good footing and keep your balance.

• The operator must be properly trained in using the core drill or under supervision of a
qualified instructor.

• The operator must always use protective goggles, earplugs, hard hat and protective
footwear when operating the core drill.

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• Never use the core drill close to utilities, electric, gas, telephone, water, cable, ect. Prior to
operation, check whether there are hidden or buried cables.

• Never wear loose clothing as it may get entangled in the moving parts of the core drill or
other hazards in the work area.

• Inspection or cleaning of the core drill, change of core bit or disconnection of hoses may
never be done while the core drill is connected to the powerpack and under pressure as
unintentional activation of the core drill can cause severe damage.

• Always connect hoses to the core drill before starting the powerpack. Be sure that all
couplings are tight.

• The core drill may not be operated if the oil temperature is above 160 F° (70 C°). Operation
at higher temperatures may result in the core drill getting warmer than normal and the
operator risks getting a thermal burn.

• To avoid all personal injury and damage to the core drill, all repair, maintenance a nd service
work must be carried out by authorized or properly trained persons only.

IMPORTANT

• A core drill, when not in use should always be kept in a secured and dry place.

• Always make sure that the core drill l abels and warning signs are legible.

• Always use hoses, couplings and spares as such recommend by Rhino®.

• Repairs may only be carried out by experienced personnel.

• Make sure that all couplings are cleaned before connection.

• Always disconnect the hydraulic circ ui t before connecting or disco nnecting the core drill. If

this is not done, there is a risk of damage to the quick release
couplings or the hydraulic system getting overheated.

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Oil Flow and Pressure

Your new Rhino® core drill is designed for a certain oil flow, working pressure and maximum
pressure. A too high oil flow and/or a too high pressure results in overl oad of the core drill,
meaning that the lifetime of your new Rhino® tool will not be as expected, and that you incur
higher service and repair co sts will be higher

It is important to check that the co r e drill is not supplied with an oil flow beyond its design
capacity, that the working pressure is correc t and that the maximum allowed pressure is not
exceeded.

On page 7 you will find the technical data, and on page 10 there is a guide to connection to
hydraulic power sources and how to ensure that the core drill is not overloaded.

Useful Information Rega rd ing the Use of Core Drill

The Rhino® core drill is a small and compa ct tool with a high performance. There i s n o other
core drill on the market with a higher performance in relation to size.

It is the perfect tool for drilling j obs in all kinds of concrete, brick wall, asphalt etc.
The core drill can be mounted in a r i g, but the great advantage of this tool is that all drilling

jobs can be done by hand. This is due to an au tom a tic clutch, which makes the core drill stop
immediately if the core bit jams.

The core drill has two handles, and with a 360° infinitely variable adj ustment of the front
handle, optimum operator comfort is achieved.

The core drill can drill holes from 1.97” to 13.78” (50 mm to 350 mm). Drilling jobs beyond

7.87” (200 mm) are for experienced users only.

The rotary speed is variable by means of the lever, which facilitates the drilling start.
As handheld drilling is possible for all jobs, the operator saves a lot of time as he does not have

to mount a drilling rig prior to operation. For rig drilling, the Rhino® core drill can be mounted
in the most common drilling rigs with a diameter of 2.36” (60 mm).

The core drill is unaffected by wat er and can be operated in all non-hazardous environments –
also underwater drilling. This means that there is no shock hazard in excavations etc., as is the
case with electric core drills.

The core drill can also be connected t o exca vators and other machines. We recommend the use
of a Rhino® oil flow divider to protect the core drill aga i nst a high oil supply, high pressure and
backwards rotation. Please refer to page 10.

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As standard the core drill comes with 1/2" thread and with the adaptor 1 1/4” -7UNC thread.
This way the core drill can also be used with a 1/2” drill chuck for other drilling j obs, where a
percussive function is not applic able.

The core drill is designed for dry as well as wet drilling. The best result is achieved by means of
wet drilling, as this cools the core bit and removes the bore meal, thus reducing the wear on the
core bit as much as possible.

The utility values of your Rhino® core drill are numerous, and we are confident that you will be
very pleased with your investment.

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Starting Instructions

START

• Mount a core bit in the drill

• Connect hoses – clean couplings befor e c onnection. Connect water supply.

• Set the power source on ”ON”.

• Get a good footing, adjust the front handle and lock it. Keep it locked during dr i ll ing.

• Press the trigger lever against the handle and start the core drill.

• In case of handheld drilling, start by holding the core bit at an oblique angle towards the

material, so that only 1/5 of the core b i t diameter cuts the material. When gra dually a
groove is cut in the material, slo wly move the core bit to drilling with the whole diameter.
Once a groove is cut on the entire diameter, press the c ore bit against the material and
drill through.

• In case of drilling in a rig, press the cor e bit slowly against the material, and once a

groove has been cu t on the entire dia meter, increase the pr essu re on the core bit and
keep it stable until the drilling is do ne.

• A constant and sufficient water supp ly is im portant, as it cools the core bit, r emoves the

bore meal and guarantees the best result with as little wear on the core bit as p ossible.

STOP

• Remove the core bit from the material and let go of the trigger lever.

• Set the power source on ”OFF”, and disconnect the water supply.

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Technical Data

HCD 1-4

HCD 2-14

Weight w/o hoses,
core bit and adaptor

16.75lbs (7.6 kg)

16.75lbs (7.6 kg)

Oil supply

5 g.p.m. (20 l.p.m.)

5 g.p.m. (20 l.p.m.)

Working pressure nominal

1450 psi (100 bar)

1450 psi (100 bar)

Pressure relief valve in

(170 bar)

(170 bar)

Max. return pressure

580 psi (40 bar)

580 psi (40 bar)

Max. oil temperature

158° C (70° C)

158° C (70° C)

Rotary speed at 5 g.p.m.

Torque (ft . lb)

1500 r.p.m.

(20 Nm)

600 r.p.m.

(48Nm)

Sound pressure level 1 m LPA

85 dB

84 dB

Vibration level

8.2 ft/s

2

(2.5m/s2)

8.2 ft/s2 (2.5m/s2)

Core bit size

1” – 4” (25 - 100 mm)

2”- 7.87” (50-200 mm)

experienced user

Thread core bit:
internal 1 ¼” – 7 UNC

Thread core bit:
internal 1 ¼” – 7 UNC

Necessary cooling capacity

power source

(20 l.p.m.)

Max. 2500 psi

14.75 ft

.

lb

Max. 2500 psi

35.4 ft . lb

Up to 13.78” (350
mm) for the

on power source

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External G ½” or

1 kW

External G ½” or

1 kW

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Performance Chart

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

15m 20m 25m 30m 35m 40m 45m 50m 55m 60m 65m 70m 75m 80m

3/4" hose 5/8" hose 1/2" hose 3/8" hose

HCD 1-4 Core Drill

Performance loss with different lengths of hoses:

50ft (15 m) 65 ft (20 m) 82 ft (25 m) 98 ft (30 m) 115 ft (35 m) 131 ft (40 m) 148ft (45m) 164ft (50m) 180ft (55m) 197ft (60m) 213 ft (65 m) 230 ft (70 m) 246 ft (75 m) 262 ft (80m)

Hose Length - Pressure from power pack: 2175 p.s.i. (150 bar)., Flow: 5 g.p.m. (20 l.p.m.), zero elevation, 2 set

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

20m 25m 30m 40m 50m 60m 70m 80m 90m 100m 110m 120m 130m 140m

3/4" hose 5/8" hose 1/2" hose 3/8" hose

HCD 2-14 Core Drill

Hose Length - Pressure from power pack: 2175 p.s.i. (150 bar)., Flow: 5 g.p.m. (20 l.p.m.), zero elevation, 2 set

65 ft (20 m) 82 ft (25 m) 98 ft (30 m) 115 ft (35 m) 131 ft (40 m) 148ft (45 m) 164ft (50 m) 197ft (60 m) 230 ft (70 m) 262 ft (80 m) 295 ft (90 m) 328 ft (100 m) 360 ft (110 m) 393 ft (120 m) 426 ft (130 m) 459 ft (140 m)

couplings per 33” (10 m) hose.

couplings per 33” (10 m) hose.

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Dimensions

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Connect ion to Hydraulic Power Sources

The core drill can be connected to various hydraulic power sources, such as excavators, trucks,
loaders, tractors etc., and of course Rhino® powerpacks, the design of which ensures your new
Rhino® core drill the absolute best working conditions.

It is important that the core drill is not subjected to an oil flow and a working pressure beyond
its design capability. Please refer to the ID-tag on the core drill in case of doubt.

Check the oil flow and the working pressure by means of test equipment. The test equipment
should comprise a pressure gauge, a flow meter and a valve for adjustment o f pressure.

Make sure that:

• the oil flow is not too high

• the working pressure is not too high

• the return pressure is not too high

• the pressure relief valve is not set hig her than 2400 psi. (170 bar)

• the internal diameter of the hoses is sufficient (min. 3/8”)

• all couplings are in order

• the power source is equipped wit h an oil filter of min. 25 Micron

Hoses with too small internal diam eter and/or defect couplings cause the core drill to work with
incorrect working pressure.

Your dealer can help you check this.
If the output of the power source is too high:

• the power source must be adjusted to correct output

• or you can choose to mount a Rhino® oil flow divider to protect the core drill against

overload

• or you can choose one of our Rhino® powerpacks. Your dealer can guide you in c hoosing

the right powerpack.

In case of doubt, please contact your dealer or Rhino®.

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Service and Maintenance

Check couplings and clean
carefully

Check hoses

X

Check bearing for clearance

X

Recommended viscosity

20-40 cSt

Permitted viscosity

15-1000 cSt

Viscosity index

Min. 100

Temperature area

-4° to +160° F (-20° to +70° C)

Service/Maintenance Daily Weekly Yearly

X

IMPORTANT- At service/repair it is important to mo unt the hoses correctly.

Oil Types

The Rhino® core drill uses standard hydraulic oil, i.e. all types of mi neral oil and biodegradable
oil, which comply with the following values:

If using biodegradable oil, we recommend the use of oil based on Rapeseed Oil. Other types of
oil can be incompatible with the seals. If you are in doubt, please ask your dealer.

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General Warranty

Conditions & Limitations on Liability

Rhino Tool Company, Inc. (“Rhino”) warrants to the original purchaser, purchasing the Equipment in
new condition, in original packaging from an authorized dealer that its Hydraulic Tool(s) will be free from
defects in workmanship and materials (the “Limited Warranty”). The Limited Warranty shall survive for
twelve (12) months with regard to all other components, excluding the Honda 13 HP engine and
Vanguard 18 HP engine for which Rhino provides no warranty and for which the warranty is provided by
American Honda Motor Co., Inc and by Briggs and Stratton Corporation respectively and the shall be the
sole warranty applicable thereto. This Limited Warranty is non-transferable.

In the event of a warranty claim, the Hydraulic Tool(s) must be returned freight prepaid to Rhino or
delivered in person to a Registered Rhino Servicing Dealer within the applicable warranty period with
proof of original purchase provided. Rhino’s obligation under this Limited Warranty is expressly limited to
the repair or replacement, at Rhino’s election, of such defective Hydraulic Tool(s), which is proved to be
defective upon inspection by a Rhino-certified/authorized technician.

This Limited Warranty does not extend to a Hydraulic Tool(s) which has been subject to misuse, neglect,
or accident, nor does it extend to any Hydraulic Tool(s) which has been repaired, altered, or serviced by
unauthorized persons. This Limited Warranty does not cover any damage or adjustments required to
any Hydraulic Tool(s) if such damage or adjustment is caused by the use of supplies, parts, or
attachments not sold or approved by Rhino.

EXCEPT AS OTHERWISE PROVIDED HEREI N, RHINO DISCLAIMS ALL OTHER WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

CIRCUMSTANCES SHALL RHINO BE LIABLE FOR ANY LOSS OF BUSINESS, REVENUES, OR
PROFIT OR OTHER INDIRECT, INCIDENTAL, SPECIAL OR CONSEQUENTIAL DAMAGES OR LOSS
ARISING OUT OF ANY DEFECTS IN OR PERFORMANCE OF THE HYDRAULI C TOOL(S),
HOWSOEVER CAUSED.

UNDER NO

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