Parker Helac PowerTilt Series Installation and operating manual

PowerTilt Series
Service and Repair Manual

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
2Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
Introduction
Table of Contents...................................................................................................................................... 2
Product Overview...................................................................................................................................... 3
Operation Technology ............................................................................................................................... 5
General Safety Guidelines ......................................................................................................................... 6
Product Identification ................................................................................................................................ 7
Installation and Maintenance
Installation and Mounting .......................................................................................................................... 8
Hydraulic Requirements and Plumbing ..................................................................................................... 10
Maintenance ........................................................................................................................................... 13
Adjusting Endplay .................................................................................................................................... 14
Troubleshooting Guide ............................................................................................................................ 17
Tools
Tools Required ....................................................................................................................................... 18
Drawings
Assembly Drawings................................................................................................................................. 19
Piston Drawings ..................................................................................................................................... 23
Exploded View........................................................................................................................................ 24
Parts List ............................................................................................................................................... 25
Disassembly
Component Identification ........................................................................................................................ 34
Product Inspection.................................................................................................................................. 35
Standard Pin-on Coupler Removal ........................................................................................................... 35
End Cap, Lock Ring and Cross Port Relief Valve Removal .......................................................................... 37
Shaft Removal ........................................................................................................................................ 38
Piston Sleeve Assembly Removal ............................................................................................................. 39
Seal and Bearing Removal....................................................................................................................... 40
Component and Timing Mark Inspection.................................................................................................... 41
Assembly
Dry Assembly ........................................................................................................................................ 42
Seal and Bearing Installation ................................................................................................................... 42
Piston Sleeve Installation ........................................................................................................................ 46
Shaft Installation..................................................................................................................................... 47
End Cap and Lock Ring Installation........................................................................................................... 48
Cross Port Relief Valve Installation............................................................................................................ 49
Standard Pin-on Coupler Installation ........................................................................................................ 50
Post Assembly
Testing and Greasing .............................................................................................................................. 54
Offer of Sale
Oer of Sale .......................................................................................................................................... 56
Introduction
Table of Contents

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
3Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
Product Introduction
Content in this Instruction, Service and Repair
Manual applies to all current product models
unless noted otherwise. For information on
maintaining, servicing or repairing earlier product
models
(TT, TTB and TBB series) please contact your local
dealer or Parker-Helac's Service Department at
1-800-797-8458 (US and Canada) or email at
[email protected].com.
Helac PowerTilt®, a construction equipment
attachment from Helac Corporation, can increase
the productivity, profitability and versatility of
backhoes or excavators by simply tilting the
attachment instead of moving the entire machine.
PowerTilt is ideal for performing everyday tasks, or
completing jobs that haven't been tried. Thousands
of contractors worldwide have come to rely on
PowerTilt since 1990 for cleaning ditches, clearing
land, digging beveled trenches, spreading rip-
rap, and positioning brushcutters, mowers and
hydraulic hammers.
When used in combination with Helac PowerGrip®,
a multi-purpose bucket, companies can achieve
unmatched , hand-like manipulation and dexterity,
dramatically maximizing productivity.
Introduction
Product Overview

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
4Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
Basic Configurations
PT Series
Standard housing with welded-on ears.
Lower end can be welded directly to a
quick coupler or bucket.
Custom Designs
Depending on the
order quantity,
custom-engineered
configurations can be
provided.
PTA/PTB Series
The housing and shaft are designed
for customization. Ideal for
integrating quick couplers at both the
top and bottom. PTA Series housing
is designed for welding; PTB Series
housing incorporates drilled and
tapped holes for bolt-mounting.
4
Specifications for
PT, PTA and PTB Series
Product Overview
INTRODUCTION
PT Series
Standard housing with welded-on
ears. Lower end can be welded
directly to a quick coupler or
bucket.
CustomDesigns
Depending on the order
quantity, custom-engineered
configurations can be provided.
PTA/PTB Series
The housing and shaft are
designed for customization. Ideal
for integrating quick couplers at
both the top and bottom.
PTA Series housing is designed
for welding; PTB Series housing
incorporates drilled and tapped
holes for bolt-mounting.
6 7 8 9 10 11 12
Maximum
Machine Weight 10,500
(4,775) 15,000 (6,800) 20,000 (9,100) 28,700 (13,000) 45,000 (20,000) 60,000 (27,000) 75,000 (34,000)
Approximate
PowerTilt
Weight* 180 320 425 575 850 1,200 1,500
(85) (145) (195) (260) (385) (545) (680)
Total Tilt 180°** 180° 180° 134°134°134° 134°
Model Size
25,000 42,000 63,000 94,000 130,000 165,000 220,000Output Torque (2,820) (4,740) (7,110) (10,620) (14,690) (18,640) (24,860)
(5,640) (9,480) (14,220) (21,240) (29,380) (37,280) (49,720)
Holding Torque 50,000 84,000 126,000 188,000 260,000 330,000 440,000
* Weights may vary depending on model size. Approximate weights for PTA and PTB Series do not include mounting brackets
or couplers.
** Actual rotation may vary slightly.
lb
(kg)
lb
(kg)
in-lbs
(Nm)
in-lbs
(Nm)
Basic Configurations
Specifications for PT, PTA and
PTB Series
Introduction
Product Overview

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
5Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
PowerTilt uses Helac innovative, sliding-spline
operating technology to convert linear piston
motion into powerful shaft rotation. Each
actuator is composed of a housing and two
moving parts — the central shaft and piston.
Helical spline teeth on the shaft engage matching
teeth on the piston’s inside diameter. A second
set of splines on the piston’s outside diameter
mesh with the gear in the housing.
Starting position
The piston is completely bottomed out.
Bars indicate starting positions of piston
and shaft. Arrows indicate directions they
will rotate. The housing with integral ring
gear remains stationary.
Ending position
When hydraulic pressure is applied to the
piston, it moves axially, while the helical
gearing causes the piston and shaft to
rotate simultaneously. Applying pressure to
the opposite port will return the piston and
shaft to their original starting positions.
Introduction
Operation Technology

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
6Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
Before beginning disassembly of the PowerTilt,
there are several cautionary notices that should
be considered. If you are not comfortable with
repair or maintenance of this product, contact
your local dealer or Parker Hannifin Corporation's
Service Department for assistance.
Other Safety Guidelines
and Precautions
1. PowerTilt should only be used to perform
tasks for which it was designed. Abusing
the product and/or using it for purposes for
which it was not intended can expose the
operator and others to hazards as well as
result in damage to the PowerTilt, carrier and/
or other attachments.
2. Modification to the PowerTilt is done at
the owner’s risk and may void the Helac
Corporation, Attachments Division warranty.
3. PowerTilt is designed for a maximum bucket
width as noted below. Applying the full force
of the excavator or backhoe to the corner
of a wide bucket (e.g. corner digging with
a wide bucket) may cause premature wear
and/or reduced equipment life. It is also
recommended that the bucket widths are not
exceeded.
4. A decrease in breakout force may be
experienced due to the increased tip radius
and the added weight of the PowerTilt to the
stick.
5. It is the owner’s responsibility to be sure all
safety equipment is in place and operating
properly at all times. If safety decals fade,
are damaged or become unreadable from a
distance of 10 feet, they should be replaced
immediately.
Maximum Recommended Bucket
Width for Use with PowerTilt
PowerTilt Model Maximum Bucket Width
PT-6 47" (1,200 mm)
PT-7 55" (1,400 mm)
PT-8 59" (1,500 mm)
PT-9 66" (1,700 mm)
PT-10 70" (1,800 mm)
PT-11 82" (2,100 mm)
PT-12 94" (2,400 mm)
Cautionary Notices
Introduction
General Safety Guidelines

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
7Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
Be sure to post the warning decal provided by
Parker Hannfin to the cab of the carrier machine.
Important Notice
Parker Hannifin Corporation does not assume
any responsibility beyond the design and
performance of its construction equipment
attachment products. The customer is solely
responsible for engineering of mating structures,
fasteners, and other associated components
related to the installation of the product and its
ultimate application.
6. PowerTilt should be used in conjunction with
attachments that do not adversely aect the
stability of the machine.
A unique serial number is located on each
PowerTilt.This serial number is stamped on the
housing and is also located on an Identification
(ID) Tag. The serial number is located near the
hydraulic ports, and may be required before parts
and/or service issues can be resolved. It may be
necessary to remove paint to expose the serial
number.
PowerTilt Identification
Introduction
General Safety Guidelines
Product Indentification

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
8Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
NOTICE
Do not attach a bucket or
attachment to the PowerTilt until
the hydraulic tool circuit for the
PowerTilt is installed and operating
correctly.
Each PowerTilt is engineered for a specific
backhoe or excavator and is designed to be pin
mounted directly to the machine. When using
the Standard Pin-on Coupler, two sets of pins
are required: one set to mount the PowerTilt to
the dipper stick and a second set to mount the
bucket or attachment to the PowerTilt. When
using Universal or Hydraulic Quick Couplers,
contact the respective coupler manufacturer for
instructions and maintenance.
PT Series — Installing the PowerTilt
onto the Carrier
All PowerTilt models should be mounted to the
carrier according to the instructions outlined
below.
1. Position the PowerTilt close to the carrier
boom to ensure easy use of the lifting reach
and range of the carrier boom.
2. Lower the dipper to approximately 2-3 inches
(50-75 mm) above the PowerTilt. Roll out the
bucket cylinder to lower the link bars to the
PowerTilt.
3. Align the PowerTilt and link bar holes and
install the link pin.
4. Slowly lift the PowerTilt to a safe height with
the bucket and boom cylinders.
5. Curl the bucket cylinder until the PowerTilt
and dipper holes align and install the bucket
pivot pin. Rotate the pins as necessary and
install the required retainers.
PowerTilt Installation
Installation and Maintenance
Installation and Mounting

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
9Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
PT Series — Mounting a Bucket or
Attachment to the PowerTilt
To mount a bucket or an attachment to the
PowerTilt with the Standard Pin-on Coupler,
follow the steps listed below.
1. Install the hook pin in the bucket or
attachment and position the bucket or
attachment so the pin can be easily reached
with the PowerTilt hook as shown in the below
image.
2. Hook the bucket pin, being sure the hook is
properly aligned to avoid damaging the hook.
3. Lift the bucket o the ground, then extend
the bucket cylinder to pivot the PowerTilt until
the second hole of the bucket or attachment
aligns with the PowerTilt coupler pin hole.
4. Install the second pin and retain properly.
5. After mounting the bucket for the first time,
the jacking bolt(s) on the back side of the
hook require adjustment. Loosen the jam nut
and thread the bolt until it touches the pin,
then tighten the jam nut to lock the bolt in
place. Proper adjustment will make it easier
to align the mounting pins when changing
buckets.
PT Series — Removing a Bucket or
Attachment from the PowerTilt
To remove a bucket or an attachment from the
PowerTilt with the Standard Pin-on Coupler,
follow the steps listed below.
1. Position the bucket or attachment so it is
lightly supported by the ground and in a
position so it will not move or fall when a pin
is removed. Remove the coupler pin (the pin
furthest from the cab).
2. Gently place the bucket or attachment on
the ground and move the PowerTilt away
from the bucket or attachment to disengage
completely. Use the bucket cylinder if
necessary to make disengagement easier.
Be careful not to damage the PowerTilt hook
while removing the bucket or attachment.
Attachment Removal
Attachment Mounting
Installation and Maintenance
Installation and Mounting

PowerTilt Tilting Coupler
PowerTilt Series Service & Repair Manual
HY34-1410
10 Parker Hannifin Corporation
Helac/Cylinder Division
Enumclaw, Washington USA
www.parker.com/helac
Installation and Maintenance
Hydraulic Requirements and Plumbing
Hydraulic Requirements Typical PowerTilt Circuit
The Typical PowerTilt Circuit Chart (shown on this
page) and the Tool Circuit Requirements Table (shown
on the following page) illustrate the control circuit
requirements for the PowerTilt. The hydraulic pressures
and flow requirements must be observed or damage to
the actuator can occur.
The installer of the PowerTilt is responsible for selecting
the control circuits that are compatible with the
excavator and meet the tool circuit requirements. Helac
can be contacted for additional control circuits and
methods for controlling the PowerTilt.
NOTICE
Most PowerTilts manufactured after
1997 incorporate an integral cross
port relief valve mounted inside the
shaft. If this secondary relief does not
exist, then the circuit pressure must
be lowered to match the cross port
relief valve pressure.
Each PowerTilt model is manufactured with two
ports, P1 and P2. This is done to assist in the hose
routing. Refer to the Suggested Hose Routings
Diagram on Page 12 for the recommended routings.
NOTICE
The majority of PowerTilts delivered
to customers in North America
incorporate SAE type ports.
Customers outside of North America
typically have BSPP type ports.
Tool Circuit Requirements for PT, PTA, PTB Series
Model Sizes 6 7 8 9 10 11 12
Displacement in3
(cm3)
32
(525)
62
(1060)
89
(1460)
118
(1935)
159
(2600)
215
(3515)
277
(4540)
Suggested Oil Flow*** gpm
(l/min)
1.3-4
(5-16)
3-9
(11-32)
4-12
(15-44)
5-15
(19-58)
7-21
(26-78)
9-27
(35-105)
12-36
(45-136)
Port Connections* SAE
BSPP
4
(1/4)
4
(1/4)
6
(1/4)
6
(1/4)
6
(1/4)
6
(1/4)
6
(3/8)
Hydraulic Hose and Tube Sizing
Hose, Tube (Optional)
Min. Whip Hose
in
(mm)
in
(mm)
3/8
(10)
1/4
(6)
3/8
(10)
1/4
(6)
3/8
(10)
1/4
(6)
1/2
(12)
3/8
(10)
1/2
(12)
3/8
(10)
5/8
(16)
3/8
(10)
5/8
(16)
3/8
(10)
Hydraulic Pressures
Cross Port Relief Valve Pressure**
Circuit Pressure
Maximum Circuit Back Pressure
3,050-3,450 psi (220-230 bar)
2,900-3,000 psi (200-207 bar)
580 psi (40 bar)
* Most PowerTilt models are manufactured with four ports: two ports (P1) and two ports (P2). The majority of all PowerTilts delivered to North
American customers incorporate SAE port connections. PowerTilts delivered to customers outside of NorthAmerica incorporate BSPP port
connections.
** PowerTilts are equipped with factory-installed integral cross port relief valves.
***Suggestedoilowswillyieldaspeedof6secondsatthelowendand2secondsatthehighend,stoptostop.