allen HP105 Application guide

OPERATIONS - PARTS
MANUAL
Riding Trowel

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.

HP105 Riding Trowel
OPERATIONS - PARTS MANUAL
This manual covers the products listed below:
Copyright © 2015 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: July 2015
Amended: February 2018
Printed in U.S.A.
Part No. Description
064200 TWIN ENGINE RIDER, HP105

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Page 4
LIMITED WARRANTY and LIMITATION OF LIABILITY
Allen Engineering Corporation (“Allen”) warrants its products to be free of defects in material or workmanship for the following
periods:
A. New Machines and Parts.............................................................................One Year
Warranty period begins on rst day of use by End User. This rst day of use is established by the date of a completed Allen
Warranty Card or a Bill of Sale to the End User. 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. Engine warranty claims should be made directly to an authorized factory service center
for the particular engine manufacturer.
5. Allen’s warranty does not cover the normal maintenance of products or its components (such as engine tune-ups 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 is not covered under the Allen Gear Box warranty.
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 replace-
ment 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
WARRANTIES 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.
Limited Warranty

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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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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
Steering System Assembly 68
LH Gearbox Assembly 70
RH Gearbox Assembly 72
Throttle Pedal Assembly 74
Kill Switch Pedal Assembly 76
Throttle System Assembly 78
Pitch Control Assembly 80
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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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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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 105
Series
105
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
105 04 15 001
Series
105
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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Technical Specications
MODEL HP105
Engine Kohler 26.5 Hp EFI
Dimensions (L x W x H) 101.5 in. x 50.5 in. x 59.5 in. (254 x 128 x 151 cm)
Panning Width 95 in. (241 cm)
Rotors (Diameter) 46 in. (1,168 mm) - Five Bladed Spider
Maximum Rotor Speed 0 - 175 RPM (Variable Speed)
Weight 1,180 lbs (535 kg)
Steering Manual
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 18
Gearboxes (2) Super Heavy Duty (SHD) 20:1 Ratio
Steering Control System Manual
Pitch Control Manual Crank
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 4
HP105 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.

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Engine Specications
26.5 HP Kohler
Model Command PRO EFI ECH749
Power hp(kW) 1 26.5 (19.8)
Displacement cu in (cc) 45 (747)
Bore in (mm) 3.3 (83)
Stroke in (mm) 2.7 (69)
Peak Torque lbs. ft (Nm) 40 (54.2)
Compression Ratio 9.1:1
Dry Weight lbs (kg) 108 (49)
Oil Capacity U.S. quarts (L) 2 (1.9)
Lubrication Full pressure w/full-ow lter
Dimensions L x W x H in 14.8 x 18.9 x 24.5
Backpressure Limit 2 50
Power hp (kW) 3 24.9 (18.6)
Rated Speed (RPM) 3600

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Dimensional Specications
101-1/2" (2,578 mm)
52-1/2" (1,333.5 mm)
50-1/2" (1,282.7 mm)

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CE Documentation

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SECTION 1
SAFETY
State Regulations
Proposition 65 Warning

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SECTION 1
SAFETY
Federal Regulations
Respiratory Hazards

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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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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