Advance acoustic Hydro-Retriever 4500 462000 User manual

Hydro-Retriever 4500
Models 462000, 462001, 463144
463408, 463409, 463394
SERVICE
TM
TigerCat 4500
Models 462000, 462001, 463144
463408, 463409, 463394
TM
Machine Manual Only
12/91 Form Number 043013

GENERAL INFORMATION AND SAFETY
TigerCat, Hydro-Retriever 4500 Service Manual
TABLE OF CONTENTS
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Accessory Pump Removal.............................................................................81
Alternator Replacement .................................................................................68
Broom Housing Skirts ....................................................................................15
Cylin er Control Valve ...................................................................................78
Drive Pe al Linkage A justments ..................................................................61
Drive Wheel, Drive Motor, Steering Spin le Removal ...................................62
Dust Control Filter ..........................................................................................24
Dust Control Shut-off A justment...................................................................28
Dust Control System General Information .....................................................23
Dust Control System Troubleshooting ...........................................................29
Electrical System ...........................................................................................90
Engine Air Filter..............................................................................................65
Engine Specifications.....................................................................................64
Engine Troubleshooting .................................................................................71
General Information & Safety...........................................................................1
Governor A justment .....................................................................................66
Hopper A justments.......................................................................................20
Hy raulic Diagram .........................................................................................89
Hy raulic Oil An Filter Maintenance.............................................................75
Hy raulic Oil Tank Drain Or Removal ............................................................76
Hy raulic System General Information ..........................................................75
Hy raulic System Troubleshooting ................................................................85
Lower Impeller Belt, Shaft or Bearing Replacement ......................................26
Main Broom......................................................................................................9
Motor Circuit Pressure Testing.......................................................................88
Motor Control Valve .......................................................................................79
Propulsion Pump Removal ............................................................................82

GENERAL INFORMATION AND SAFETY
TigerCat, Hydro-Retriever 4500 Service Manual
TABLE OF CONTENTS
Recovery Tank Removal ................................................................................46
Reverse Switch A justment ...........................................................................55
Scrub Brush Belt Removal.............................................................................34
Scrub Brush Motor Removal..........................................................................36
Scrub Brush System General Information .....................................................34
Scrub Brush System Troubleshooting............................................................37
Shaker Switch Removal.................................................................................28
Si e Broom ....................................................................................................18
Si e Broom Lift Valve.....................................................................................80
Solution System General Information ............................................................31
Solution Tank Removal ..................................................................................33
Solution Valve Cable Removal.......................................................................32
Solution Valve Removal .................................................................................32
Specifications & Maintenance..........................................................................5
Squeegee.......................................................................................................44
Squeegee Lift Cylin er Removal ...................................................................55
Squeegee Lift System Troubleshooting .........................................................56
Sweeping System General Information .......................................................... 9
Sweeping System Troubleshooting................................................................22
Up An Down Limit Switch A justment ..........................................................53
Upper An Lower Impeller .............................................................................46
Vacuum System General Information ............................................................41
Vacuum System Service Checklist ................................................................43
Vacuum System Testing.................................................................................42
Wiring Diagram ..............................................................................................92
Note: All references to right, left, front or rear in this manual are as seen from the operator’s seat.
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GENERAL INFORMATION AND SAFETY
TigerCat, Hydro-Retriever 4500 Service Manual
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OTHER MANUALS AVAILABLE FOR THE TIGERCAT
The following manuals are available from the A vance Literature Service Department:
• TigerCat Parts List - A vance Form Number 042237
• TigerCat Operation Manual - A vance Form Number 041230
• For Engine Repair Manual - For Form Number 194264
• For Engine Parts List - For Form Number 194265
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TRANSPORTING THE MACHINE
CAUTION!
Before dri ing the machine up a ramp and onto a truck or trailer, remo e the squeegee tool and
brushes from the machine to a oid damage.
CAUTION!
Before transporting the machine on an open truck or trailer, make sure that...
• the hopper is all the way down
• the dust control filter co er is latched securely
• the solution tank co er is strapped or taped closed
• the reco ery tank co er is strapped or taped closed
• the broom access door is latched securely
• the engine co er is latched securely
• the scrub brushes are installed and in the down position
• the squeegee is installed and in the down position
• the sweeping broom le er is in the down position
• the operators seat is strapped or taped down
• the machine is tied down securely - see tie-down locations Figure 1
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GENERAL INFORMATION AND SAFETY
TigerCat, Hydro-Retriever 4500 Service Manual
FIGURE 1
1 Tie-Down on
Each Si e
2 Tie-Downs Un er Rear Bumper
2
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TOWING
The rear ( rive) wheel shoul be lifte off of the groun for towing, to avoi amaging the hy rostatic rive
system. If the machine must be towe or pushe with the rear wheel on the groun , o not move the machine
faster than walking spee or a istance of more then 500 feet (150 meters).

GENERAL INFORMATION AND SAFETY
TigerCat, Hydro-Retriever 4500 Service Manual
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GENERAL SAFETY INSTRUCTIONS
The wor s CAUTION!, WARNING!, an DANGER! are use in this manual to help you recognize situations
that may cause bo ily injury or property amage. Carefully rea information beginning with these wor s an
take necessary steps to protect personnel an property.
WARNING!
Ne er work under the hopper with out the hopper safety support installed on the hopper lift
cylinder, as shown in Figure 2, below.
FIGURE 2
WARNING!
Ne er work under the machine without safety stands or blocks installed under the frame.
DANGER!
Do not adjust the dri e pedal linkage with the dri e wheel on the floor. With the wheel on the floor, the
machine could mo e during adjustment, causing property damage or bodily injury.
WARNING!
Wear a protecti e mask to pre ent inhaling of dust while ser icing the dust control filter.
WARNING!
Wear eye protection while ser icing the dust control filter.
3

GENERAL INFORMATION AND SAFETY
TigerCat, Hydro-Retriever 4500 Service Manual
WARNING!
Do not allow loose clothing, jewelry or hair to become tangled in mo ing parts.
WARNING!
Use caution to pre ent loose clothing or hair from being pulled into the engine cooling fan.
WARNING!
Remo e all jewelry when working near electrical components.
DANGER!
Keep sparks and open flame away from the fuel tank, battery and engine compartment.
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GENERAL SAFETY INSTRUCTIONS (continued)
4

SPECIFICATIONS AND MAINTENANCE
TigerCat, Hydro-Retriever 4500 Service Manual
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SPECIFICATIONS
Description English Metric
Cooling System Capacity 7 qts 6.6 l
Dust Control Filter Area 125 sq ft 11.6 sq m
ngine - See Page 63
Fuel Tank Capacity (Gasoline & Diesel) 10 gal 38 l
Hopper Capacity - Volume 15 cu ft 425 l
Hopper Capacity - Weight 1200 lbs 544 kg
Hydraulic System Capacity 18.5 gal 70 l
Hydraulic Oil Tank Capacity 17 gal 64 l
Minimum Aisle for U-turn 120 inches 305 cm
Recovery Tank Capacity 85 gal 322 l
Scrub Brush System
Brush Diameter 12 inches 38 cm
Brush Pressure 350 lbs 159 kg
Brush Speed 200 RPM 200 RPM
Scrub Path 45 inches 114 cm
Solution Tank Capacity 95 gal 360 l
Sweeping System
Main Broom Adjustment Pattern 2-1/2 inches 64 mm
Main Broom Minimum Bristle Length 2 inches 51 mm
Side Broom Diameter 21 inches 53 cm
Sweeping Width - Main Broom Only 45 inches 114 cm
Sweeping Width - with 1 Side Broom 56 inches 142 cm
Sweeping Width - with Dual Side Brooms 67 inches 142 cm
Tire, Rear 6 x 16 inches 15 x 41 cm
Tires, Front 4 x 16 inches 10 x 41 cm
Turning Radius - Left Turn 84 inches 213 cm
Turning Radius - Right Turn 88 inches 224 cm
Weight
Net 3800 lbs. 1723 kg
Shipping 4050 lbs 1837 kg
Ready to Run 5000 lbs 2268 kg
Wet Pickup System
Sealed Waterlift 40 inches 102 cm
Waterlift with 1 inch opening 38 inches 97 cm
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SPECIFICATIONS AND MAINTENANCE
TigerCat, Hydro-Retriever 4500 Service Manual
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DIMENSIONS
108 inches (275 cm)
58-3/4 inches
(149cm)
50 inches
(127 cm) 24-3/4 inches
(63 cm)
67-3/4 inches*
(172cm)
FIGURE 1
58 inches
(147 cm)
* 87 inches (221 cm) with Overhead Guard

SPECIFICATIONS AND MAINTENANCE
TigerCat, Hydro-Retriever 4500 Service Manual
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Maintenance Chart
maintenance interval (hours of operation)
15 30 100 300
check engine coolant level •
check hydraulic oil level •
drain and flush solution tank •
flush solution valves •
inspect squeegee blades •
inspect, rotate main broom •
adjust main broom height •
adjust side broom •
blow dust out of radiator •
check oil in upper impeller housing •
inspect dust control filter •
change engine oil and filter •
lubricate (2) lower impeller shaft fittings * •
change oil in upper impeller housing •
* see Figure 2
FIGURE 2
Grease Fitting Locations as seen from the ngine Compartment
Grease Fitting
Lower Impeller
Housing
Grease Fitting
Upper Impeller
Housing
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SPECIFICATIONS AND MAINTENANCE
TigerCat, Hydro-Retriever 4500 Service Manual
• Change the hydraulic oil filter when the “service filter” indicator light (on the dashboard) glows.
• Service the engine air filter whenever the red flag is visible in the filter service indicator (located in the
engine compartment, on the air filter). See page 64 for more information.
• Change the engine coolant every 1500 hours of operation. Use a 50/50 mixture of water and automotive-
type anti-freeze.
• very 1500 hours of operation, have a sample of the hydraulic oil analyzed for contamination. Change
the oil if necessary. See page 74 for more information.
• very 1500 hours of operation, check the oil level in the scrub brush gear boxes. Add 140W gear lube if
necessary to bring oil level to 1-1/2 inches (3.8 cm) from top of gear boxes.
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ADDITIONAL MAINTENANCE ITEMS
8

SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
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GENERAL INFORMATION
The main broom, the broom housing and the hopper are the main parts of the sweeping system. The main
broom lifts the dirt off of the floor and into the hopper. The broom housing and its skirts keep the litter and dust
from spreading beyond the sweeping path of the machine.
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MAIN BROOM MAINTENANCE
The main broom should be serviced at regular intervals to maintain good sweeping performance. The follow-
ing maintenance steps should be completed every 30 hours of operation.
1aise the hopper and install the hopper safety support. Then remove any debris wrapped around the
broom, broom motor shaft or idler hub.
2Open the door at the right end of the broom housing and inspect the broom bristles. otate the broom if
the bristles are curved. eplace the broom if the bristles are worn to a length of 2 inches (5 cm) or less.
3Clean built-up dirt from the inside of the broom housing.
4Check main broom height adjustment.
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
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MAIN BROOM ADJUSTMENTS
The working height of the main broom is adjustable to compensate for bristle wear. Before adjusting the main
broom height, measure the length of the bristles. The broom should be replaced if the bristles are worn to a
length of 2 inches (5 cm) or less.
To adj st the main broom height...
1Drive the machine to an area with a level floor and set the parking brake.
2With the engine still running, put the broom switch in the ON position and the main broom lever in the
SWEEP position. Do not move the machine. Let the main broom run for about 1 minute. This allows the
broom to polish a “strip” on the floor.
3After 1 minute, release the parking brake and move the machine so that the polished strip is visible. The
polished strip on the floor should be 2-1/2 inches (6.3 cm) wide.
Note: Adjusting the broom for a pattern wider than specified decreases sweeping performance and increases
broom wear.
4If the polished strip is too wide or too narrow, remove the panel from the left side of the operator’s
compartment (next to the operator’s left leg). The broom adjustment knob is behind this panel, near the
bottom of the broom raise/lower lever. Turn the broom adjustment knob clockwise to make the polished
strip wider or counter-clockwise to make the polished strip narrower.
5Check the broom pattern again. Continue adjusting until the polished strip is the correct width.
Main Broom Level Adj stment
The broom level adjustment raises or lowers just the left end of the main broom, so that the broom touches the
floor evenly across it’s entire length.
Once the broom is leveled at the factory, further adjustment is seldom necessary. Adjust the broom level only
if the broom pattern (see main broom adjustment) is tapered after installing a new broom.
To adj st the broom level...
1Install a new broom and check the broom pattern (see Main Broom Adjustment). If the broom pattern is
tapered, go to step 2. If the broom pattern is not tapered, the broom level does not need adjustment.
2emove the (7) screws holding the cover at the left end of the broom housing.
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
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MAIN BROOM ADJUSTMENTS (contin ed)
FIGURE 1 F
C
E
B
G
D
A
Main Broom Options
Two different main brooms are available for the TigerCat.
• The 8 row polypropylene broom (part number 505071) is an all purpose broom for light litter or dust.
• The 8 row proex and wire broom is best for heavier debris. The wire bristles also help break compacted
dirt loose from the floor.
3Loosen the (2) “A” bolts (see Figure 1) and lock nuts “B” and “E”.
4To raise the left end of the broom, turn bolts “C” and “D” downward. To lower the left end of the broom,
turn the bolts upward.
5Check the broom pattern again. Continue adjusting bolts “C” and “D” until the width of the broom pattern
is the same from one end to the broom to the other.
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
D
A
ECE
B
F
FIGURE 2
Rotating or Replacing the Main Broom
Since the main broom motor always turns in the same direction, the bristles eventually become curved. When
this occurs, sweeping performance can be improved by removing the broom and turning it around (end for
end) so that it will turn in the opposite direction. This procedure is commonly referred to as “rotating” the main
broom.
Note: The main broom should be replaced when its bristles are worn to a length of 2 inches (5 cm) or less.
To rotate or replace the main broom...
1aise the hopper, stop the engine, set the parking brake and put the hopper safety support on the hopper
lift cylinder.
2Put the main broom lever in the SWEEP position.
3Open the main broom access door (on the right side of the machine) and remove the “A” bolts (see
Figure 2).
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MAIN BROOM ADJUSTMENTS (contin ed)
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
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MAIN BROOM ADJUSTMENTS (contin ed)
4Pull idler assembly “B” away from the broom and.pull the broom out of the broom housing.
5emove any debris wrapped around idler hub “C”. If the hub doesn’t turn freely, remove it from the idler
assembly and look for debris between the hub and string guard “D”. Also check the “E” idler bearings,
replace them if necessary.
6From the front of the broom housing, remove any debris wrapped around broom motor “F”. Install a seal
kit or replace the motor if it is leaking hydraulic oil.
7Inspect the rubber skirts on the sides and the back of the broom housing, replace any skirt that’s torn or
damaged.
8Inspect the hopper skirt (drags on the floor in front of the main broom). eplace the skirt if it’s torn or
damaged.
9If the broom is not worn out, remove any debris wrapped around it, flip it (end for end) and slide it back
into the broom housing.
10 Push on the broom and turn it by hand until you feel the lugs on the drive hub engage the hub inside the
broom.
11 Install the idler assembly and the bolts that hold it in place.
Note: If the idler assembly doesn’t fit properly, the hub in the broom is probably not engaged on the drive hub.
emove the idler and try seating broom on the drive hub again.
12 Close the broom door and check the main broom height adjustment.
Note: The broom height m st be adjusted whenever a new broom is installed.
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
Main Broom Motor Removal
1Open the door at the right end of the broom housing and remove the idler assembly from the end of the
broom. Then pull the broom out of the broom housing.
2emove the (7) screws holding the cover at the left end of the broom housing.
3Note the position of the hydraulic hoses and disconnect them from the broom motor. Install plugs in the
hoses to keep the oil in and the dirt out of the hydraulic system.
4Loosen the lock nut “B” (see Figure 1) and loosen bolt “C” one turn.
5emove the (6) screws from the broom housing end panel.
6emove set screw “F” and the (2) “A” bolts from motor arm “G” and pull the motor and arm out of the
broom housing.
7emove the motor from the arm and the drive hub from the motor. epair or replace the motor as
necessary.
Follow the steps in reverse order to re-install the motor.
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MAIN BROOM ADJUSTMENTS (contin ed)
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
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BROOM HOUSING SKIRTS
ubber or urethane skirts are installed at the front, back and sides of the broom housing to keep dust and
debris confined during sweeping. For good sweeping performance, all of these skirts must be in good condi-
tion and adjusted for proper contact with the floor.
Hopper Skirt
The hopper skirt is mounted on the hopper and drags on the floor in front of the main broom. It acts as a
ramp, to help guide the litter off the floor and into the hopper. It also acts like a check valve, keeping litter from
being thrown forward by the rotation of the broom.
To replace the hopper skirt...
1aise the hopper about 3 feet (1 meter) and put jack stands under it for additional support.
WARNING!
Never work nder the hopper witho t jack stands in place to s pport it.
2emove the screws holding the skirt on the hopper and install the new skirt in it’s place.
Replacing Skirts at Left End of Broom Ho sing
O ter skirt - emove the (8) “A” bolts (see Figure 3) and the straps holding the skirt in place.
FIGURE 3
C
D
Inner
E
Middle
B
Outer
A
F
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
Middle Skirt - Open the broom access door, remove the (6) “I” bolts, straps and the inner skirt. Then remove
the (5) “J” bolts and the strap holding the middle skirt in place.
Inner Skirt - Open the broom access door, remove the (6) “I” bolts, straps and the inner skirt.
Follow steps in reverse order to reassemble.
FIGURE 4
Inner
I
J
Middle
Outer
H
Middle Skirt - emove the (7) “B” bolts and cover “C”. Then remove the “D” bolts and the straps holding the
middle skirt in place.
Inner Skirt - emove the (7) “B” bolts and cover “C”. Then remove the (6) “E” bolts and the straps holding the
middle skirt in place. When installing the new middle skirt, position it so that area of the skirt marked “F” is on
the inside (broom-side) of panel “G” - not between the the strap and panel “G”. The holes at area “F” are not
actually used to hold the skirt in place.
Follow steps in reverse order to reassemble.
Replacing Skirts at Right (door) End of Broom Ho sing
O ter Skirt - emove the (8) “H” bolts (see Figure 4) and the straps holding the skirt in place.
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BROOM HOUSING SKIRTS (contin ed)
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SWEEPING SYSTEM
TigerCat, Hydro-Retriever 4500 Service Manual
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BROOM HOUSING SKIRTS (contin ed)
Replacing the skirt at the back of the broom ho sing
1aise the hopper and install the hopper safety support.
2Open the broom access door and remove the broom from the machine.
3If the heads of the skirt mounting bolts face toward the front of the machine, remove the bolts, strap and
skirt.
4If the heads of the skirt mounting bolts face toward the back of the machine, reach under the skirt to
remove the bolts. Install the new skirt so the strap and bolt heads face toward the front of the machine.
This will make future service easier.
5Follow steps in reverse order to reassemble.
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