Number One In The World For a Reason ® ® Holmatro Hydraulic Rescue Tool What You Need to Know to Maintain your Rescue Tool System © 4/2004 Holmatro

Number One In The World For a Reason Number One In The World For a Reason

®®HolmatroHolmatro

Hydraulic

Hydraulic

Rescue Tool

Rescue Tool

What You Need to Know to Maintain your Rescue Tool System

© 4/2004 Holmatro



Session Objective

Session Objective:

1. Review basic operation of hydraulic rescue tools.

2. Cover general maintenance, troubleshooting and inspection of rescue tools.



Table of Contents

• General Knowledge Quiz

• Basic Hydraulics– Pascal’s Law– Double Acting Cylinders– Tracing the Flow– Deadman’s Handle – Fluid Type



Table of Contents Cont’d.

• Hoses & Couplers– Coupling Procedures– Auto Lock Coupler– Pressure Relief Device– Hose No-No’s– Care and Maintenance of Hoses

• Pumps - The “Heart” of Your System– Starting Procedure– Operation Valve Function



Contents Cont’d.

• Tools– Personal Safety– Common Features

• Maintenance and Storage– Pumps– Tools– Hoses



General Knowledge Quiz

• What is the maximum operating pressure of your Holmatro system?

• 10,500 psi

• What type of fluid is used?• Mineral based oil




• True or False: two tools can be powered at the SAME time by your pump.

• True. The tools operate simultaneously, completely independent of each other, sharing only the oil in the reservoir.

• True or False?: When running, the pump is always moving fluid.

• True. When the motor is spinning, the pump is pumping. The oil will be circulating to the tool and back. With no tool attached to the pump the oil circulates back to the tank.




• How do you relieve the pressure in a hot hose?

• Use the pressure relief device which is hanging from the pump.



What is Hydraulics?

A means of transmitting power

by pushing on a confined liquid.



Pascal’s Principal:

P x A=FPressure

times Area Equals Force

Pascal’s Law: Pressure applied on a confined fluid is transmitted undiminished in all directions, and acts with equal force on equal areas, and at right angles to them



This works because:

• Mineral Oil Does Not Compress

• The System is Filled– Hoses and tools are filled with oil– There is no air in the system

• The System is Sealed

• The Pressure is the same in all areas which are pressurized



Deadman’s Handle Operation

• Same on all tools• Automatically

returns to neutral when released

• Clockwise (CW) always opens

• Counter-clockwise (CCW) always closes



Deadman’s Handle Operation

•When at rest the handle is in the neutral position. This sends the oil in a U-turn back to the pump. No motion of tool.

•Rotating the handle either CW or CCW directs oil to either the bottom or the top of the piston, causing the tool to open or close.



Couplers - Care

• Keep Couplers Clean!! NO

DIRT

• Keep Dust Caps On

• Clean With WD40 or

Silicone



Mineral Oil Hydraulic Fluid

• Non-toxic• Non-caustic• SAFE!• Use approved

equivalents only• Change at LEAST

once per year to remove contaminants



System ComponentsSystem Components



SR20PC2 Spider

SR20PC2 Spider

3-

3-

stage Pumpstage Pump

Check Fluid Levels

Operating Controls



Pumps –Operation SR20 Spider What is a 3-stage pump?

• Stage 1 • For opening and closing with no resistance

0 - 1500psi (tool runs fast)

• Stage 2 (new)• For average cuts and pushes some of the

speed of 1st stage and some of the power of 3rd stage 1,500 – 5,000psi

• Stage 3• For harder cuts and pushes slower tool but

lots of power 5,000 – 10,500psi



Pumps - Operations SR20 Duo

• Check level of mineral oil -should be between marks (on side of tank)

• Use only approved fluid



Pumps – OperationsSR20 Honda Duo

• Starting the pump– Choke On/Off



Operation Controls – SR20 Spider

• No dump valves on Pump!

Change tools

Without having to

dump pressure.



Pumps - Operation SR20 Honda Duo

• Fuel Cap• Carbon filled cap, if

pump is tipped over carbon in cap will absorb fuel and may harden and not allow air into tank. This can cause a vapor lock. Cap may need to be replaced.



Rescue ToolsRescue Tools

Common Features

Personal Safety



Common FeaturesCutters & Spreaders

• Light• Balanced at Carry

Handle• 360° Access to

Operation Handle• I - bolt technology• Integral Safety Relief• Compact• LED lights



Common FeaturesCutters & Spreaders

• LED Lights on Carry Handles

• On/Off Switch on back of carry handle

• AA battery remove

two screws to change

• If lights will not turn off batteries need replacing



Common FeaturesTelescopic Rams

• Grip heads rotate• Cross design on grip head• Extremely powerful



Pressure Relief Device

• Heat Causes Oil Expansion

• Expansion makes coupling impossible

• Pressure Relief Device is Used to Allow Coupling.



4050NCT Cutter

• 7 1/8 Blade opening• 208,000lbs cutting force• 43lbs• NCT blades (Pulls material into

cutting notch)



4240 Spreader

• 27” Opening• 33,625lbs spreading force• 44.5lbs• Speed valve (tool moves faster

opening without load)



Telescopic Rams3340Mini & 3350

• 4350 Ram 22” to 50” spread• 39.5lbs



Core Hose

• High pressure inside of low pressure hose

• Kevlar reinforce 4:1 safety factor

• Hot swap change tools without returning

to power unit

• Swiveled ends keeps hose from

twisting



Automatic Locking Coupler

• Flat face coupler automatically locks when connected to male coupler

• Eliminates connection errors and saves setup time - just push to connect and you are done!

• Male end of hose to pump - female end of hose to tool



New Automatic Lock Coupler

• Operation– To connect: push the

male and female fitting together. Locking is automatic

– To disconnect: rotate the gold ring counter clockwise and then pull toward rear. Coupler releases without leaking



Personal Safety - Object Lesson

• When we overlook personal safety because what we are doing has become “routine”…

• It can have adverse consequences!



Maintenance &

Maintenance &

StorageStorage

Tools

Pumps

Hoses



Maintenance and Storage

• Follow these steps after EVERY

use

• Keep your tools clean and in

optimum condition if you want

optimum performance available

at the next accident scene.

• If something doesn’t work

properly take care of it NOW

rather than later.



Maintenance and StorageSpreaders

• With the pump running and pressure to the spreader, close the spreader fully.

• Operate the handle to open the spreader approximately 1/4 inch.

• Release pressure at the pump.

• Disconnect spreader. Inspect tool for damage - tips, handles, couplers, etc.

• Clean couplers and dust caps before installing.



• With the pump running

and pressure to the cutter,

close the cutter fully.• Operate the handle to open the cutter until the

blades just overlap at the tips.• Release pressure at the pump.• Disconnect cutter. Inspect tool for damage -

blades, handles, couplers, etc.• Clean couplers and dust caps before installing.

Maintenance and StorageCutters



Maintenance and StorageMaintenance and StorageRamsRams

• With the pump running and pressure to the ram, close the ram fully.

• Operate the handle to extend the ram approximately 1/4 inch.

• Release pressure at the pump.

• Disconnect ram. Inspect tool for damage - cross heads, handles, couplers, etc.




Maintenance and StoragePumps

• Shut off pump with either throttle control or stop switch

• Put pump in ready position according to your local SOPs.

• Check fuel level.• Inspect pump for damage - Frame, reservoir,

PRD, couplers, etc.• Clean couplers and dust caps before installing.• Recommend using Seafoam or other gas

stabilizer in fuel.



Maintenance and StorageHoses

• Inspect hoses for any kind of damage: kinks, cuts, abrasions, etc.

• If the hose came in contact with any foreign fluids, such as brake fluid, transmission fluid, oil, etc. clean using mild soap and water as soon as possible. To prolong the life of your hose, minimize exposure to contaminants.

• Ensure that bend restrictors are in place and couplers are not damaged. Coil hose.


• Immediately remove any damaged hose Immediately remove any damaged hose from servicefrom service



Proven Quality

• ISO 9000 Manufacturing Facility in North America.• ISO is an international quality assurance certification

program.



Proven PerformanceMore independent testing than any other manufacturer

• Only UL Listed rescue tools available– Since 1993

• First NFPA1936 compliant rescue tools– Since August 16, 1999



The End

Documents

Number One In The World For a Reason ® ® Holmatro Hydraulic Rescue Tool What You Need to Know to Maintain your Rescue Tool System © 4/2004 Holmatro