Torrent EX30RPM User manual

Torrent EX30RPM
Owner’s Manual

EX30RPM Owner’s Manual
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CONTENTS
Warranty ................................................................................. 2
Operations and Maintenance ................................................ 3
Audience ..................................................................................................................3
Precautions...............................................................................................................3
Operation .................................................................................................................5
Maintenance Schedule ..........................................................................................7
Preventative Maintenance Chart .............................................................................7
Recommended Rolling Bearing Lubricant Specifications ......................................8
EX30RPM Technical Specifications .......................................................................9
Preventative Maintenance Instructions ........................................................... 10
Daily – Every Four Hours of Operation ..........................................................10
Weekly – Every 50 Hours of Operation .........................................................14
Monthly – Every 200 Hours of Operation ..................................................... 15
Annually – Every 1000 Hours ........................................................................15
EX30RPM Installation ........................................................... 1
Mounting ...............................................................................................................17
Hydraulic Connections ......................................................................................... 18
Handing Shipping and storage ............................................. 20
Key Components .................................................................. 21
Parts List .............................................................................................................. 21

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12 Month Limited Hardware Warranty
THE FOLLOWING WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL
OTHER WARRANTIES, WHETHER EXPRESS OR IMPLIED, OR
STATUTORY, INCLUDING, BUT NOT BY OF LIMITATION, ANY
WARRANTY OR MECHANANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE. WITHOUT LIMITING THE GENERABILITY
OF THE FOREGOING, RWI SPECIFICALLLY DISCLAIMS AND
EXCLUDES ANY WARRANTY OF MERCHANTABILITY OR FITNESS
FOR ANY PARTICULAR PURPOSE OR USE.
Roughwater Industries Ltd.. (“RWI”) warrants to the Customer that commencing from the date of
delivery to the Customer and continuing for a period of 360 days, the RWI Hardware (i) to be free of
defects in material and workmanship under normal use and service, and (ii) to conform in all
material respect to the printed specifications for the Equipment which have been delivered to the
Customer in connection with the Customer’s purchase of the Equipment. This limited warranty covers
only the original purchaser of the Equipment. RWI’s and its supplier’s sole obligation and the
Customer’s sole remedy for any failure of the Equipment is limited to the repair or replacement of
any part of the Equipment at RWI’s discretion. RWI’s and its supplier’s liability is limited to the
amount paid for the Equipment. RWI and its suppliers shall not be liable for indirect, special,
consequential or liquidated damages or penalties, including claims for lost revenues, profits or business
opportunities, even if RWI had or should have had knowledge, actual or constructive, of the possibility
of such damages.
Upon notification of possible defect, RWI will provide to the Customer a Return Material Authorization
(“RMA”). The customer, at its expense, may then ship the Equipment to RWI (or its authorized
representative) for inspection. RWI shall, at its option, repair or replace the applicable part(s) of the
Equipment and (RWI) shall, at its expense, return the Equipment to Customer in the same or
equivalent manner that the Equipment was delivered to RWI. Part(s) replaced during this Limited
Hardware Warranty period, as applicable, will be covered for the remaining term of such period.
Such replacement parts may, at RWI’s option, be new or equivalent to new.
This warranty shall be void if Customer fails to use or maintain the Hardware in accordance with RWI’s
specifications or instructions, or if the Hardware or any part thereof have been subject to any
unauthorized modifications, improper operation, user negligence, service by unauthorized
person, company, association, use with any unauthorized attachment, device or feature, accidental
neglect, misuse, tampering, acts of God, or any event other than ordinary use.
Export Law Regulations
You agree that you will not export, either directly or indirectly, any RWI Product, material or data
provided in the course of receiving Standard Limited Hardware Warranty services without first
obtaining any required license or other approval from the Canadian Department of Consumer and
Corporate Affairs or any other agency or department of the Government of Canada. In the event that
You export any RWI Product from Canada, or re-export it from a foreign destination, You agree to
ensure that the distribution and export/re-export or import of the RWI Product is in compliance with all
laws, regulations, orders, or other restrictions of Canadian Export Controls Legislation Regulations
and the appropriate foreign government. You agree that neither You nor any of Your subsidiaries will
export/ re-export any RWI Product, material or data provided in the course of receiving Standard
Limited Hardware Warranty, directly or indirectly, to any country for which the Government of
Canada or any agency thereof or the foreign government from where it is shipping required and
export license, or other governmental approval, without first obtaining such license or approval.

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EX30RPM Operations and Maintenance
The EX30RPM is a horizontal shaft type, directly driven, rotary forestry mulching
attachment designed for use in conjunction with boom-equipped carriers. The unit is
comprised of a cutting frame and cutting drum driven by a hydraulic motor equipped
with anti-cavitiation protection. The unit is fitted with guarding to limit access to the
cutting drum and designed to limit flying debris that may be ejected during clearing
operations.
The unit is designed for use in the safe and efficient reduction to chips/mulch of all
types of vegetation to a maximum diameter of 6 inches (15mm) and is to be used only
in applications where personnel, property and roadways are greater than 150 meters
from where the mulching equipment is being operated.
Audience
This user guide is written for operators who use and maintain the Torrent EX30RPM
Forestry Mulching Attachment during forestland clearing activities.
Precautions
Failure to follow and respect the following WARNINGS can result in damage to the
mulcher, the carrier, other property or injury or death of operation personnel or
pedestrians. This unit must not be used within 150 meters of objects, other machinery,
livestock, pedestrians or personnel (other than the operator).
WARNING: This machine must be operated only by qualified equipment operators
with thorough knowledge and understanding of the contents of this manual. RWI
accepts no responsibility for damage or injury resulting from inappropriate or misuse of
its products.
WARNING: Before starting the supply of hydraulic oil to the mulcher the operator
must verify that equipment, personnel, property and roadways are greater than 150
meters from where the mulching equipment is being operated. As well, the operator
must be inside the operator’s compartment of the machine with the doors and windows
closed.
WARNING: The EX30RPM must not be approached by persons (including the
operator) or by other equipment while the cutting drum is turning. Because of the risk
of entanglement or debris that may be ejected from the unit, the EX30RPM must be in a
ZERO ENERGY STATE (that is, the drum is stationary, the cutting frame is squarely

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on the ground and prime mover (carrier engine) is shut down before being approached
for inspection or maintenance).
WARNING: Because of the nature of the protective valve supplied on the mulching
unit, the cutting drum will continue to rotate after the unit is shut down until all inertial
energy is expended from the cutting drum. Always allow the unit at least two minutes
to “run-down” after the carrier has been shut down before approaching the unit for any
reason.
WARNING: This machine must be installed according to the product technical
specifications contained herein by competent, trained, qualified installation personnel.
RWI Technical Inc. accepts no responsibility for damage or injury resulting from
inadequate or improper installation of its products.
WARNING: This machine must be used only with the debris control guard (guards) in
place. RWI Technical Inc. accepts no responsibility for damage or injury resulting from
alterations to or removal of components from its products.
WARNING: When servicing cutters, the cutting drum must be mechanically prevented
from turning (that is, wedged or blocked) so as to minimize the risk of injury to the
maintainer.
WARNING: The EX30RPM is manufactured from metal components and, as such, is
a highly efficient electrical conductor. Extreme caution must be used when working
around electric power transmission lines whether above or belowground!
WARNING: This machine must be installed and used in observance of all laws,
rules and regulations as laid out by local regulatory bodies in the country/region
in which it is being used.

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Operation
Clearing operations should be carried out only by a competent equipment operator
familiar with the safe operation of the EX30RPM when installed to the applicable
carrier. The operator must understand the contents of this manual.
Before starting the supply of hydraulic oil to the mulcher the operator must verify that
equipment personnel, property and roadways are greater than 150 meters from where
the mulching equipment is being operated. As well, the operator must be inside the
operator’s compartment of the machine with the doors and windows closed. It is
imperative that the operator remains inside the operator’s compartment at all times
while the mulcher drum is turning.
For lighter growth, such as bush and smaller trees up to 40 mm, material is most
efficiently reduced by approaching the work from the left, such that material is
introduced into the “feed side” or left side of the mulcher. This allows the cutting drum
assembly to pull the material up between the cutters and the frame to be ejected directly
downward through the discharge side.
Feed Side

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Larger trees, 40-150 mm or larger in diameter, often require that the top be cut off and
mulched separately on the ground. In addition, with respect to larger growth it is faster
and more efficient to chip/mulch as much of the tree as possible while it is standing
(still on the stump). For efficient mulching of larger trees the steps to remember are as
follows:
1. Reach as high as safely practicable (that is, boom highest position with
mulching head horizontal) toward the right side of the tree.
2. Using the left or “discharge” side of the mulching drum, slowly cut into the
right portion of the tree top being careful not to cut the top off completely.
3. As the top weakens, apply increasing left swing pressure until the combination
of cutting and swing forces cause the top to fall away from the machine and
operator.
4. Using slight down pressure, in conjunction with short smooth swings over the
stem, the tree can be reduced to slightly below grade.
5. Using the feed side, reduce the top in much the same way as described above
for lighter growth.
Discharge Side

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Maintenance Schedule
Preventive maintenance chart
Checks and Services
Daily
Weekly
(50 Hours)
Monthly
(200 Hours)
Six Months
(1000 Hours)
Che
ck hydraulic conductors for
leaks or damage x
Inspect hydraulic motor and
drum shaft splines for wear x
Check cutter fasteners torque
(55 ft-lb, 75 Nm) x
Grease drum shaft bearings
( 4 shots each twice daily) x
Inspect bearings
for excessive
radial clearance or end play x
Inspect cutters for excessive
wear or breakage x
Inspect hydraulic motor,
anticavitation valve and
hydraulic hose connections for
leaks
x
Inspect tool Holders for
excessive wear or damage x
Grease motor/drum shaft spline
(4 shots) x

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Lubrication
WARNING:33 percent of premature bearing failures are caused by
incorrect specification and inadequate application of the lubricant.
Use of FAG Arcanol Multitop Rolling Bearing Lubricant is strongly
recommended in Torrent Mulchers. Use of a compatible SPEED
RATED alternative should be considered only after consultation with
Torrent.

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EX30RPM Technical Specifications
Operating weight (Standard) 780 lb/348 Kg
Cutting width 30 inches
Rotational speed 3500 RPM (nominal)
Carrier power requirement 50 Hp or 37 Kw (minimum)
Cutter type Fixed spherical or fixed beaver
Cutter quantity 18
Drive type Direct
Power transmission type Hydraulic fluid power
Hydraulic motor type Fixed axial piston
Maximum hydraulic system pressure 5000 psi/345 bar (maximum continuous)
Hydraulic oil flow requirement 25 usgpm/95 lpm (minimum)

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Preventive Maintenance Instructions
This section provides the information necessary to ensure safe and effective
maintenance of the EX30RPM forestry mulching attachment. Periodic checks and
lubrication requirements are described in detail.
Daily
Check Hydraulic Conductors for Leaks or Damage
The hydraulic hose assemblies connecting the mulching unit to the boom of the
carrier are exposed to impact and abrasion as a normal course of operation.
These conductors must be checked regularly in order to avoid any soil
contamination due to leakage of hydraulic fluid and to maintain the proper level
of oil in the hydraulic system. Restrictions in the hydraulic conductors can
adversely affect the performance of the mulcher and, in some cases, cause
damage to the hydraulic motor.
Grease Drum Shaft Bearings
Lubricate main shaft bearings twice daily with four shots of special purpose
grease suitable for operating conditions (see “Recommended Rolling Bearing
Lubricant Specifications” for lubricant requirements).

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Grease Drive Coupling
With the unit squarely on the ground, or other flat solid surface, and with the
carrier in a ZERO ENERGY STATE, apply four shots of grease to the grease
fitting located on the idler end of the drum shaft.

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Inspect Cutters for Excessive Wear or Breakage
Inspect cutters for excessive wear or breakage. As cutters wear they become less
efficient. Rotate cutters as required.
To rotate, or remove, a cutter perform the following steps:
1. Remove the cutter fastener (1) and lock washer (2).
2. Remove the cutter (3) from the tool holder (4).
3. Turn 90 degrees, or as required, to expose a new cutting edge – if no
new edges remain, replace the cutter with a new one.
4. Replace the cutter fastener and lock washer and torque to 75 Nm.
Do not use an impact wrench to tighten the cutters.

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Inspect Tool Holders for Excessive Wear or Damage
In cases of severe damage to cutters involving loss of the entire cutting head, the
tool holder tool face may be exposed to impact with potential for damage to the
machined surface. Any damage to the machined surface must be corrected. In
cases of severe damage, a new tool holder must be installed.

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Weekly – Every 50 Hours of Operation
Check Cutter Fasteners Torque
Using a torque wrench, check that all cutter fasteners are tightened to a value of
55 ft-lb (75Nm).
Inspect Bearings for Excessive Radial Clearance or End Play
With the unit squarely on the ground, or other flat solid surface, and with the
carrier in a ZERO ENERGY STATE, place a pry bar between the drum and the
surface upon which the unit is sitting. Check for excessive radial clearance. A
small amount of clearance is built into the bearings (approximately 0.008” or
0.2mm). An audible clunk, or readily visible movement while moving the pry
bar up and down, may indicate worn or damaged bearings.
Excessive end-play may be detected by placing a pry bar between the cutting
frame and either end of the cutting drum. A small amount of end-play is built
into the bearing. If total axial play (in excess of 0.060” or 1.5 mm) is detected,
bearings may be excessively worn or damaged and further inspection is
required.

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Monthly – Every 200 Hours of Operation
Inspect Hydraulic Motor and Anti-cavitation Valve and Hydraulic Hose
Connections for Leaks
Place the unit squarely on the ground, or other flat solid surface, and ensure that
the carrier is in a ZERO ENERGY STATE. Allow the unit to cool to ambient
temperature. Remove the drive end cover and inspect the hydraulic motor and
anti-cavitation valve assembly hose connections for leaks or seepage of
hydraulic oil and correct as necessary.
Annually – Every 1000 Hours
Inspect Hydraulic Motor and Drum Shaft Splines for Wear
Place the unit squarely on the ground, or other flat solid surface, and ensure that
the carrier is in a ZERO ENERGY STATE. Allow the unit to cool to ambient
temperature. Remove the drive end cover, disconnect the hydraulic hoses from
the motor, remove the four bolts mounting the hydraulic motor to the motor
mount, and slide the hydraulic motor from the unit. Once removed from the unit
inspect the hydraulic motor and drum shaft splines for wear and correct as
required.

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EX30RPM Installation
Installation of the EX30RPM must be carried out by a competent technician with
training and experience in heavy equipment or industrial mechanics, with extensive
knowledge of hydraulic fluid power systems and components. The technician must
possess knowledge and/or documentation specific to the carrier to which the unit is to
be fitted and should commence installation of the EX30RPM only after having read and
understood the contents of this manual.
Warning: All installation and any other maintenance or mechanical procedures to
be carried out on the EX30RPM must be performed with the unit resting squarely
on the ground or other flat solid surface, and with the carrier in a ZERO
ENERGY STATE.
The EX30RPM is a hydraulically driven, rotary mulching attachment driven by a fixed
displacement axial piston hydraulic motor rated for a maximum continuous operating
pressure of 5000 psi (345 bar). The motor is fitted with an anti-cavitation check valve.
The motor/check valve assembly is located on the drive end of the unit and accessible
only after removing the drive end compartment cover.
The unit’s main shaft is fitted with a set of two double row spherical roller bearings
rated for a total basic dynamic radial load of 9 tonnes. Limited by the bearing sealing
system, the maximum continuous rotational speed of the EX30RPM cutting drum is
3500 rpm.

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Mounting
The EX30RPM is shipped standard with a deck plate featuring a six bolt pattern for the
purpose of anchoring a cap plate suited to the coupling system utilized by the carrier to
which the unit is to be installed. The dimensions of the deck plate and the bolting
pattern are supplied in the following diagram of the EX30RPM as viewed from the top
of the unit.

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Hydraulic Connections
The hydraulic conductor connecting points are accessible by removing the cover from
the drive end compartment of the unit. Referring to the following figure the connection
points are supply pressure, main return and case drain.
Pressure Oil
Main pressure oil should be supplied to the unit at a value as close to 5000 psi
(345 bar) as possible for optimum performance. Motor torque is directly
proportional to the value of the supplied pressure and so lower supplied pressure
translates into decreased performance.
Main Return Oil
The main return oil line should ideally be connected to the main return header
up stream of the hydraulic cooler. Alternatively the main return oil may routed
directly to the hydraulic reservoir via a suitably sized auxiliary hydraulic oil
filter system. Main returns are commonly allowed to return to tank through the
directional control valve from which the pressure oil is supplied although this is
the least efficient configuration due to increased back pressure and heat
generated due to throttling losses through the directional control valve.

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Case Drain Oil
Under normal operating conditions, motor case drain oil line pressure must not
exceed 44 psi (3 bar). Momentary case pressure is acceptable under cold start
conditions but must not exceed 73 psi (5 bar). Operation with case drain
pressure in excess of the specified limits mat result in external leakage due to
damage to motor seals, gaskets or housing.
Hose Routing
The EX30RPM is designed such that hydraulic hoses are routed from the
connecting points on the cutting frame just below the edge of the deck plate and
just behind the lifting lug as in the illustration on the previous page. Hoses can
then be routed in a manner that suits the mounting/connection type and in such a
way that pinch points are avoided. The following figure illustrates a typical
quick attach cap plate and hose routing. Note extra height of quick attack side
plates in order to allow passage of hoses beneath quick attach and inside quick
attach for added protection.