allen HP205 Application guide

OPERATIONS & PARTS MANUAL
HP205 RIDING TROWEL
Manual Part #: 065779 | Revision: C

This manual, or a copy of it, must be kept with the machine at all times.
There is a manual storage container located on the machine for your convenience.

HP205 Riding Trowel
OPERATIONS - PARTS MANUAL
This manual covers the products listed below:
Copyright © 2017 Allen Engineering Corporation
All rights reserved
All information, specications, and illustrations in this manual are subject to change without notice and
are based on the latest information at the time of publication. No part of this manual may be reproduced
or transmitted in any form or by any means, electronic or mechanical, for any purpose, without the
express written permission of Allen Engineering Corporation (AEC). AEC assumes no responsibility or
liability for any errors or inaccuracies that may appear in this manual.
Allen Products are covered under one or more of the following patent numbers:
U.S. Design Patents: 344,736; 400,542; 400,544; 402,998; 402,999; 403,332; 404,041; 404,042;
410,931; 413,127; 416,564; 465,897; 466,909; 474,203.
U.S. Utility Patents: 5,108,220; 5,238,323; 5,328,295; 5,352,063; 5,405,216; 5,476,342; 5,480,257;
5,480,258; 5,533,831; 5,562,361; 5,567,075; 5,613,801; 5,658,089; 5,685,667; 5,803,658; 5,816,739;
5,816,740; 5,890,833; 5,934,823; 5,967,696; 5,988,938; 5,988,939; 6,019,433; 6,019,545; 6,048,130;
6,053,660; 6,089,786; 6,106,193; 6,857,815; 5,288,166; 6,582,153 B1, 7,108,449; 7,114,876;
7,316,523; 7,690,864 B2
Canadian Patents: 2,039,893.
First Issue: February 2017
Printed in U.S.A.
Part No. Description
064650 TWIN ENGINE RIDER, HP205

064355 - 06/2017
Page 4
Limited Warranty
Allen Engineering Corporation (“Allen”) warrants its products to be free of defects in material or workmanship for:
TWO YEARS FROM END USER’S DATE OF PURCHASE
Warranty period begins on the date of purchase by the End User of the product. All warranty is based on the following limited
warranty terms and conditions, including the disclaimer of implied warranties and consequential damages.
1. Allen’s obligation and liability under this warranty is limited to repairing or replacing parts if, after Allen’s inspection, there is
determined to be a defect in material or workmanship. Allen reserves the choice to repair or replace.
2. If Allen chooses to replace the part, it will be at no cost to the customer and will be made available to the Allen Distributor,
Dealer, or Rental Center from whom the End User purchased the product.
3. Replacement or repair parts, installed in the product, are warranted only for the remainder of warranty period of the product
as though they were the original parts.
4. Allen does not warranty engines or batteries. Engine warranty claims should be made directly to an authorized factory
service center for the particular engine manufacturer. Batteries are not warranted due to unknown treatment during transport,
etc, and any battery claims should be directed to the battery manufacturer.
5. Allen’s warranty does not cover the normal maintenance of products or its components (such as engine tuneups and oil &
lter changes). The warranty also does not cover normal wear and tear items (such as belts and consumables).
6. Allen’s warranty will be void if it is determined that the defect resulted from operator abuse, failure to perform normal main-
tenance on the product, modication to product, alterations or repairs made to the product without the written approval of
Allen. Allen specically excludes from warranty any damage to any trowels resulting from an impact to the rotors.
7. Impact damage to gear boxes is not covered under the Allen warranty and is deemed customer abuse.
8. Allen will pay shop labor on warranty items at the Allen Shop Labor Rate in existence on the date of the warranty claim. An
Allen labor chart will determine the time allowed to complete a repair and will govern the shop labor hours that will be allowed.
9. Allen will pay freight on warranty replacement parts at worldwide standard ground rates. No warranty replacement parts will
be shipped air freight at the expense of Allen. Allen only pays outbound freight charges when sending warranty replacement
parts to the customer via ground service. Allen does not pay any inbound freight. However, if Allen determines this to be a
warranted item, only then will Allen reimburse the customer for inbound freight at standard ground rates.
10. ALLEN ENGINEERING CORPORATION’S WARRANTY POLICY WILL NOT COVER THE FOLLOWING: TAXES;
SHOP SUPPLIES; ENVIRONMENTAL SURCHARGES; AIR FREIGHT; TRAVEL TIME; LOSS OF TIME; INCONVENIENCE;
LOSS OF RENTAL REVENUE; RENTAL COSTS OF EQUIPMENT USED TO REPLACE THE PRODUCT BEING REPAIRED;
LOSS OF USE OF THE PRODUCT; COMMERCIAL LOSS; OR ANY OTHER CHARGES WHATSOEVER OR ANY LIABILI-
TIES FOR DIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGE OR DELAY.
11. ALLEN ENGINEERING CORPORATION MAKES NO OTHER WARRANTY, EXPRESSED OR IMPLIED. THIS LIMITED
WARRANTY IS IN LIEU OF THE WARRANTY OF MERCHANTABILITY AND FITNESS. THERE ARE NO OTHER WARRAN-
TIES THAT EXTEND BEYOND THE DESCRIPTION ON THIS DOCUMENT.
12. No Allen employee or representative is authorized to change this warranty in any way or grant any other warranty
unless such change is made in writing and signed by an ofcer of Allen Engineering Corporation.

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Table of Contents
Title Page
Limited Warranty 4
Table of Contents 5
Information Contained In This Manual 7
Dealer Information 8
Ordering Parts 9
Model Number - Serial Number Codes 10
Unit Identication 11
Technical specications 12
Engine Specications 13
Machine Dimensional Specications 14
CE Declaration of Conformity 15
Section 1 - Safety
State Regulations 16
Federal Regulations 17
Safety Information 18
Safety Symbols 19
General Safety 20
Safety Labels and Decals 25
Lifting Safety 29
Transportation Safety 30
Section 2 - Operations
Pre-Operating Instructions 31
Operating 32
Section 3 - Service
Maintenance Instructions 36
Air Filter Maintenance 37
Engine Oil Maintenance 38
Maintenance Schedule 39
Filter Replacement 40
Troubleshooting 41

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Page 6
Table of Contents - Continued
Title Page
Section 4 - Parts
Factory Service Information 42
Replacement Part Procedure 43
Seat Frame Assembly 44
Right Rotor Module Assembly 48
Right Rotor Assembly 52
Left Rotor Module Assembly 54
Left Rotor Assembly 58
Right Spider Assembly 60
Left Spider Assembly 61
Fuel System Assembly 62
Spray System Assembly 64
LH Gearbox Assembly 68
RH Gearbox Assembly 70
Throttle Pedal Assembly 72
Kill Switch Pedal Assembly 74
Throttle System Assembly 76
Hydraulics Assembly 78
Mainframe Assembly 82
Electrical Schematics 86
Section 5 - Accessories
Front Dolly Jack Assembly 92
Rear Dolly Jack Assembly 94
Trowel Arm Alignment Jig Assembly 96
Accessories 98

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Information Contained in this
Manual
This manual provides information and procedures to safely operate and maintain the Allen Machine.
For your own safety and protection from personal injury, carefully read, understand, and observe the
safety instructions described in this manual. Keep this manual or a copy of it with the machine at all
times.
Always operate this machine in accordance with the instructions described in this manual. A well main-
tained piece of equipment will provide many years of trouble free operation.
This manual is divided into the following sections:
SECTION 1
SAFETY
SECTION 3
SERVICE
SECTION 2
OPERATIONS
SECTION 4
PARTS
Complete any warranty requirements as specied by the engine manufacturer in their instructions
found inside the manual box located on the operator’s control panel.
Your engine is not manufactured by Allen Engineering Corporation, Inc, and therefore is not covered
under Allen Engineering Corporation, Inc warranty.
Your engine manufacturer should be contacted if you wish to purchase a parts manual or a repair man-
ual for your engine.
Refer to enclosed owners engine manual for complete O&M instructions. See your battery manufactur-
er for battery warranty.
SECTION 5
ACCESSORIES

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Page 8
Dealer Name: _____________________________________________________________
Phone #: (____) - ____ - ____________________________________________________
Address: ________________________________________________________________
City:__________________________________State:________ Zip:___________________
Salesman: _______________________________Mobile Phone _____________________
Additional Comments: ______________________________________________________
________________________________________________________________________
________________________________________________________________________
Your Dealer has Allen Engineering Corporation trained mechanics and original Allen replacement parts.
Always contact the Allen Dealer who sold you this machine for Allen Certied repairs and replacement
parts.
Place Allen Dealer information below for future reference.
Dealer Information

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Ordering Parts
Section 4 contains illustrated parts lists for help in ordering replacement parts for your machine. Fol-
low the instructions below when ordering parts to insure prompt and accurate delivery:
1. All orders for service parts - include the serial number for the machine. Shipment
will be delayed if this information is not available.
2. Include correct description and part number from the “PARTS” section of this
manual.
3. Specify exact shipping instructions, including the preferred routing and complete
destination address.
4. DO NOT return parts to AEC without receiving written authorization from AEC. All
authorized returns must be shipped pre-paid.
5. When placing an order, please contact the AEC dealer nearest you.
All information, specications, and illustrations in this manual
are subject to change without notice and are based
on the latest information at the time of publication.
VISIT US!!! www.alleneng.com
LIKE US!!! www.facebook.com/AllenEngineering
FOLLOW US!!! @alleneng
WATCH US!!! www.youtube.com/AllenMachinery

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Page 10
Model Number - Serial Number Codes
Manufacturer’s Codes:
When ordering parts or requesting service information, you will always be asked to specify the model
and serial numbers of the machine. The legends below specically denes each signicant character
or group of characters of the Model Number and Serial Number codes.
Model Number
HP 205
Series
205
High Performance
Serial Number
The serial number found on the identication plate is a ten digit format. The model number identies
your machine and will ensure that you receive the correct replacement parts.
Serial Number Example
205 04 15 001
Series
205
Month
Year
Sequence Number

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Unit Identication
Model Number:____________________________
Serial Number:____________________________
Date Purchased:___________________________
Purchased From:___________________________
Unit Identication Plate Location:
An identication plate listing the model number and the serial number is attached to each unit and is
located on the bottom left hand corner of the main frame front deck. See image below for serial number
plate number location. This plate should not be removed at any time.
Please record the information found on this plate below so it will be available should the identication
plate become lost or damaged. When ordering parts or requesting service information, you will always
be asked to specify the model and serial numbers of the machine.
FILL IN FOR FUTURE REFERENCE

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Page 12
Technical Specications
MODEL HP205
Engine 2x Kohler 37 Hp EFI
Dimensions (L x W x H) 123.7 x 63.2 x 62.1 in (314.2 x 160.5 x 157.7 cm)
Panning Width 117.6 in
Rotors (Diameter) 57.6 in. (146.3 cm) - Six-Bladed Spider
Maximum Rotor Speed 45 - 180 RPM (Variable Speed)
Weight 2169 lbs (983 kg)
Steering Power
Fuel Capacity 12 gal. (45.4 L) - Two Tanks
Retardant Capacity 6 gal. (22.7 L)
Seat Frame Bolt-on with Removable Screen
Finish Blades - Standard 8 x 23
Gearboxes (2) Super Heavy Duty (SHD) 20:1 Ratio
Steering Control System Power
Pitch Control Joystick
Safety Shutdown Switch Yes (Foot Pedal)
Approximate Running Time 3 Hours
Torque Converter Clutch (TC) Standard
Engine Hour and RPM Gauge Digital
Low Oil Detection Low Oil Pressure Kill
Amperage, Alternator 25 Amp (2)
Lights 6
HP205 is a High Performance Twin Engine Ride-On Power Trowel. It is a work horse delivering a total
of 53hp and built for concrete professionals. Utilizing the torque converter clutch, it provides excellent
low speed torque for low speed oat panning and superior high rotor speed for nishing concrete.

064355 - 06/2017 Page 13
Engine Specications
37 HP Kohler
Model Command PRO EFI ECH980
Power hp(kW) 1 37 (27.6)
Displacement cu in (cc) 61 (999)
Bore in (mm) 3.5 (90)
Stroke in (mm) 3.1 (78.5)
Peak Torque lbs. ft (Nm) 58 (78.6)
Compression Ratio 8.8:1
Dry Weight lbs (kg) 132 (60)
Oil Capacity U.S. quarts (L) 2 (1.9)
Lubrication Full pressure w/full-ow lter
Dimensions L x W x H in 15.8 x 19.1 x 23.6
Backpressure Limit 40
Rated Speed (RPM) 3600

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Page 14
Dimensional Specications
123 1/4
62 1/16
63 1/4

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CE Documentation

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Page 16
SECTION 1
SAFETY
State Regulations
Proposition 65 Warning

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SECTION 1
SAFETY
Federal Regulations
Respiratory Hazards

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Page 18
SECTION 1
SAFETY
Safety Information
Do not operate or service the equipment before reading the entire manual. Safety precautions should
be followed at all times when operating this equipment. Failure to read and understand the safety mes-
sages and operating instructions could result in injury to yourself and others.
SAFETY NOTES
The four safety notes shown below will inform you about potential hazards that could injure you or oth-
ers. The safety notes specically address the level of exposure to the operator and are preceded by
one of four words: DANGER, WARNING, CAUTION or NOTICE.
Indicates a hazardous situation which, if not avoided,
will result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in death or serious injury.
Indicates a hazardous situation which, if not avoided,
could result in minor or moderate injury.
Addresses practices not related to personal injury.

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SECTION 1
SAFETY
Safety Symbols
Potential hazards associated with the operation of this equipment will be referenced with hazard
symbols which may appear throughout this manual in conjunction with safety notes.

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Page 20
SECTION 1
SAFETY
● NEVER operate this equipment without proper protective clothing, shatterproof glasses, respiratory
protection, hearing protection, steel-toed boots and other protective devices required by the job or city
and state regulations.
● ALWAYS avoid wearing jewelry or loose tting clothes that may snag on the controls or moving parts
as this can cause serious injury.
● NEVER operate this equipment when not feeling
well due to fatigue, illness or when under medication.
● NEVER operate this equipment under the inuence of drugs or alcohol.
● ALWAYS clear the work area of any debris, tools, etc. that
would constitute a hazard while the equipment is in operation.
● No one other than the operator is to be in the working area when the equipment is in operation.
● DO NOT use the equipment for any purpose other than its intended purposes or applications.
● This equipment should only be operated by trained and qualied personnel 18 years of age and older.
● Whenever necessary, replace nameplate, operation and safety decals when they become difcult to
read.
● AEC does not assume responsibility for any accident due to equipment
modications. Unauthorized equipment modication will void all warranties.
● NEVER use accessories or attachments that are not recommended by AEC
for this equipment. Damage to the equipment and/or injury to user may result.
● ALWAYS know the location of the nearest re extinguisher.
● ALWAYS know the location of the nearest rst aid kit.
General Safety