WALTCO GTSL User manual

Domino’s Pizza
GTSL Tech Manual
Gen 2 Rack & Pinion Drive
Waltco Lift Corp. Waltco Lift Corp.
Corporate Office United States United States
285 Northeast Ave. 620 S Hambledon Ave.
Tallmadge, OH 44278 City of Industry, CA 91744
P: 330.633.9191 P: 626.964.0990
F: 330.633.1418 F: 626.964.0149
Tech Support 330.633.9191
Waltco Parts Dept. 800.411.5685
1
04/23/19
waltco.com
[e-mail]

Table of Contents
INTRODUCTION and WARRANTY ..................................................................................................................................................................................................... 1-4
LIFTGATE TERMINOLOGY ................................................................................................................................................................................................................ 5-6
PLACEMENT OF DECALS__________________________________________________________________________________________________________7
SCHEMATICS FOR GRAVITY AND POWERDOWN UNITS_______________________________________________________________________________8-11
KEY COMPONENTS ........................................................................................................................................................................................................................... 12-14
SINGLE / DUAL PUMP ....................................................................................................................................................................................................................... 15
HYDRAULIC AND ELECTRIC LAYOUT.............................................................................................................................................................................................. 21-22
ONE PIECE GALVANIZED PLATFORM PM ...................................................................................................................................................................................... 23-24
MOUNT FRAME PM............................................................................................................................................................................................................................. 25-26
TRACK FRAME PM ............................................................................................................................................................................................................................. 27-28
ROLLER WEAR AND ARM BEARING AND PIN WEAR CHECK ................................................................................................................................................... ....29-32
OIL CHANGING PROCEDURE............................................................................................................................................................................................................... 35
SWITCH REPLACMENT.......................................................................................................................................................................................................................... 36
SWITCH REPLACEMENT ................................................................................................................................................................................................................... ....37
HOW TO ORDER PARTS___________________________________________________________________________________________________________28
Improper operation and maintenance of this liftgate could result in severe
personal injury or death.
Read and understand the contents of the owner’s manual and all warning and
operation decals before operating and/or performing maintenance on this
liftgate.
TROUBLESHOOTING GUIDE ............................................................................................................................................................................................................ 16-20
NOSE MOUNTED INDICATOR LIGHTS................................................................................................................................................................................................ 33-34
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04/23/19

[Type text]
Introduction
Each Waltco liftgate is manufactured to stringent quality standards for years of reliable
service. To ensure maximum performance of your Waltco liftgate, always specify and use
“OEM Parts” from Waltco.
Service and repair should only be performed by an authorized Waltco distributor. For
information on the nearest authorized Waltco distributor contact:
Waltco Lift Corp.
285 Northeast Avenue
Tallmadge, OH 44278
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
The use of non-standard or makeshift parts can be extremely hazardous and
result in serious injury or death.
Every vehicle that has a WALTCO Liftgate must have legible WARNING AND
OPERATION DECALS clearly posted on the vehicle and an OWNER’S MANUAL in
the vehicle at all times as a guide for proper operation and maintenance.
This is the safety alert symbol. This manual uses this symbol to alert you to
potential personal injury hazards. Obey all safety messages that follow this symbol
to avoid personal injury or death.
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WALTCO Warranty Policy
WALTCO warrants its products free of defects in materials and workmanship.
WALTCO will replace components found defective during the warranty period. Labor will be
reimbursed according to our flat rate labor schedule at the prevailing shop rate.
Contact our Sales or Warranty departments for the warranty period of your model or for
information regarding our flat rate labor schedule.
WALTCO Warranty Claim Procedure
For consideration, all claims must be received within 30 days of repair and include the following
information:
Liftgate Serial Number
Description of problem and corrective actions
Itemization of the labor charge to include the number of hours and labor rate
Replacement warranty parts can be obtained by contacting Waltco’s Parts Department. Parts
must be returned for inspection when requested.
Exclusions:
Waltco’s warranty does not include reimbursement for service calls, vehicle rental, towing, travel
time, fabrication of parts available from WALTCO, damage from misuse or abuse, negligence,
accidents, alteration, loss of income or overtime expense, oil, or normal wear.
Diagnosis and troubleshooting time are included in the flat rate labor times.
Warranty and technical information is available from WALTCO’s toll free customer service lines
from 8:00 a.m. to 5:00 p.m. EST.
Waltco Truck Equipment Co.
285 Northeast Ave, Box 354, Tallmadge, OH 44278
1-800-211-3074, 330-633-9191
Please visit our websites: http://www.waltco.com or http://www.hiab.com
We're behind you all the way!
4
04/23/19

Chapter 2 Liftgate Terminology
1. Deck 10. Track Frame
2. Mount Frame 11. Mount plates
3. Lift Cylinder 12. Up-Stops
4. Parallel Arm 13. Mud Flap
5. Lift Arm
6. Battery Box (2 on-gate, 2-auxiliary, or 4-auxiliary)
7. Pump Unit Box
8. Identification Tag
9. Switches (Mounted separately)
5
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Chapter 2 Liftgate Terminology
EXPLANATION OF SPECIFICATION TAG
MODEL NO. DESCRIPTION CAPACITY
GTSL-33 GTSL-33 SLIDER LIFTGATE 3300 LBS.
GR10053
GR10010
6
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Placement of Decals
Decal Replacement Kit: 80002238
7
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Schematics
Hydraulic Schematic - Dual Pump Gravity Down
8
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Schematics
Hydraulic Schematic - Dual Pump Power Down
9
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Schematics
Electrical Schematic – Dual Pump Gravity Down
10
04/23/19

Schematics
Electrical Schematic – Dual Pump Power Down
11
04/23/19

Key Components
Drive Motor
Cylinder Lock Valve & Coil Assembly
Drive Chain
Platform Work Light
Flasher Lights
12
04/23/19

Key Components
Phillips Permalogic Charging System-Nose Box
Dual Pole Socket
Driver Platform Indicator li
g
hts
Red light - Platform is not stored
Green light - Platform is stored
Lower set of lights represent the
side gate
Upper set of lights represent the
Rear Gate
Contact Phillips Industries direct for
troubleshooting the Permalogic System.
800.423.4512 or www.phillipsind.com
One liftgate mounted = one set of
lights
For Purkey Nose Socket Box refer to Purkey
Tech Info on the Ryder InfoCenter
13
04/23/19

Key Components
Platform Door Light
(Above side door inside trailer)
Green light indicates platform is
at floor level
Platform Work and Flasher
Light Proximity Switch
(switch normally closed)
Platform Door Light
Proximity Switch
(switch normally open)
14
04/23/19

Side Loader Single/Dual Pump
“D” Out “C” In
Pressure
Compensating
Flow Control Valve
Back side of Valve Body
Ground
“B” Lower
“BR” Brake
In & Out Valve
& Coils
Raise & Lower
Valve & Coils
Top View of Valve Body
Lock Valve
and Coil
Ground
Front View of Valve Body
Thermal
switch wires
Motor
Solenoid
“A” Ports Driver Side/Curb
Side Raise/Lower
Reservoir Return Ports
A BB C D
Auxiliary
Power Unit
15
04/23/19

Domino’s GT Side Loader
Trouble Shooting Guide
CHECKING THE OIL LEVEL IN THE RESERVOIR
The liftgate is shipped with Shell Tellus 15. Check the owner’s manual for additional recommended oils.
Fill as required with the specified fluid in the owner’s manual. Do not overfill the reservoir.Domino’s
spec power unit 90908954: Raise platform to bed level. Oil should be within ½ to the fill line (over or
above) marked on the side of the oil tank. Fill as required with the specified fluid in the owner’s manual.
RECOMMENDED LIFTGATE BATTERY(S)
Domino’s preferred liftgate battery(s) as supplied at during the installation are AGM batteries. The
battery specification is Group 31, 650-750 cold cranking amps and at least 180 minutes of reserve
capacity. Batteries should be load tested before being replaced. When replacing the liftgate battery(s)
inspect the cables and wires for corrosion. If the batteries are in need of replacement the charging
system should be tested before releasing the trailer.
MOTOR DOES NOT RUN
The pump motor has built in thermal protection. The thermal switch will shut the motor down if the unit
exceeds 240 degrees. Once the motor cools down the switch will reset automatically.
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16
04/23/19

Domino’s GT Side Loader
Trouble Shooting Guide
PLATFORM DOES NOT RAISE OR RAISES SLOW- MOTOR
RUNS
If the motor is not running see the section titled “MOTOR DOES NOT RUN” before proceeding.
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PLATFORM DOES NOT SLIDE OUT
If the motor is not running see the section titled “MOTOR DOES NOT RUN” before proceeding.
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If the motor is not running see the section titled “MOTOR DOES NOT RUN” before proceeding.
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17
04/23/19

Domino’s GT Side Loader
Trouble Shooting Guide
PLATFORM WILL NOT LIFT TO FULL CAPACITY
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o&KHFNIRUOHDNLQJKRVHVDQGOLQHV5HSODFHDQ\OHDNLQJOLQHVRUKRVHV
o&KHFNIRUDLULQWKHK\GUDXOLFV\VWHPEOHHGDQ\DLUIURPWKHOLIWJDWHDWWKHF\OLQGHU
o&KHFN WKH YROWDJH DW WKH SXPS PRWRU ZLWK WKH “Raise” VZLWFK DFWLYDWHG 7KH YROWDJH VKRXOG EH
10.5 volts.
o&KHFNWKHSXPSSUHVVXUHIURPWKHOLIWSRUW,WVKRXOGEH2900 psi
PLATFORM DOES NOT LOWER OR LOWERS SLOW
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ZRUQSDUWVWKDWFRXOGLQWHUIHUHZLWKQRUPDORSHUDWLRQ
o&KHFN DQG LQVSHFW WKH RLO OHYHO LQ WKH UHVHUYRLU ,QVSHFW IRU DQ\ FRQWDPLQDWLRQ RU ZDWHU LQ IOXLG
&KHFNWKHIOXLGYLVFRVLW\See Checking the oil level in the reservoir.
o&KHFN YROWDJH RQ WKH Lowering Valve (BB) ZKLOH WKH “Lower” VZLWFK LV EHLQJ DFWLYDWHG 7KH
YROWDJH VKRXOG EH DW OHDVW 10.5 volts )HHO IRU D SXOVH RQ WKH YDOYH 7HVW WKH FRLO (4.5ohms)
&RQILUPWKDWWKHYDOYHLVPDJQHWL]LQJ,IWKHFRLOLVJRRGWKHYDOYHPD\QHHGWREHUHSODFHG,IWKH
FRLOVDUHQRWJHWWLQJSRZHUFKHFNDOOFDEOHVDQGZLUHVIRUVKRUWVDQGSRRUFRQQHFWLRQV
o&KHFN YROWDJH RQ WKH Lock Valves ZKLOH WKH “Lower” VZLWFK LV EHLQJ DFWLYDWHG 7KH YROWDJH
VKRXOGEHDWOHDVW10.5 volts)HHOIRUDSXOVHRQWKHYDOYH7HVWWKHFRLO(4.5ohms).&RQILUPWKDW
WKHYDOYHLVPDJQHWL]LQJ,IWKHFRLOLVJRRGWKHYDOYHPD\QHHGWREHUHSODFHG,IWKHFRLOVDUHQRW
JHWWLQJYROWDJHFKHFNDOOFDEOHVDQGZLUHVIRUVKRUWVDQGSRRUFRQQHFWLRQV
THE CIRCUIT BREAKER TRIPS
o&KHFN IRU D GLUHFW VKRUW LQ SRZHU FDEOH ,QVSHFW IRU GDPDJHG RU FXW FDEOH $OVR FKHFN IRU
LPSURSHUO\VL]HEDWWHU\FDEOH
o$GHIHFWLYHPRWRUPD\GUDZWRPXFKFXUUHQW&KHFNDPSHUDJHGUDZIURPOLIWJDWHPRWRU$W 700
psiWKHPRWRUVKRXOGGUDZ80-100 amps
o'HIHFWLYHFLUFXLWEUHDNHU,IWKHEUHDNHULVVXVSHFWHGLWVKRXOGEHUHSODFHG
CONTROL SWITCH FUSE BLOWN
o&KHFNWKHZLULQJIRUGDPDJHVFOHDQGLUW\FRQQHFWLRQVDQGWLJKWHQDQ\ORRVHFRQQHFWLRQV
o&KHFNDQGLQVSHFWIRUDVKRUWLQVZLWFKFRQWUROZLUHRUVZLWFKFRQWDFWV
o&KHFNIRUGHIHFWLYHFRLOVRQYDOYHV7HVWWKHFRLOV(4.5ohms)
18
04/23/19

Domino’s GT Side Loader
Trouble Shooting Guide
PLATFORM WILL ONLY LOWER ON ONE SIDE.
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SDUWVWKDWFRXOGLQWHUIHUHZLWKQRUPDORSHUDWLRQ
o7HVWIRUYROWDJHRQORFNYDOYH&KHFNIRU10.5 voltsDWWKHFRLOZKHQWKH“lower” VZLWFKLVSUHVVHG
&KHFNIRUGHIHFWLYHFRLOVRQYDOYHV7HVWWKHFRLOIRUUHVLVWDQFH(4.5ohms)&RQILUPWKDWWKHYDOYH
LVPDJQHWL]LQJ,IWKHFRLOLVZRUNLQJWKHYDOYHPD\QHHGWREHUHSODFHG,IWKHYDOYHLVQRWJHWWLQJ
YROWDJHFKHFNDOOFDEOHVDQGZLUHVIRUVKRUWVDQGSRRUFRQQHFWLRQV
PUMP MOTOR IS GETTING HOT
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PRWRUH[SHULHQFHVKLJKF\FOHVRIRSHUDWLRQLQDVKRUWSHULRGRIWLPHZLWKRXWFRROLQJ7KH7KHUPDO
VZLWFKZLOOUHVHWDIWHUWKHPRWRUFRROVGRZQ
o&KHFNIRUORZYROWDJH7KHYROWDJHVKRXOGEHDWOHDVW10.5 voltsDWWKHPRWRU
o&KHFNEDWWHULHVDUHIXOO\FKDUJHGORDGWHVWEDWWHULHV&KHFNWKHFDEOHVIRUGDPDJHVFOHDQGLUW\
FRQQHFWLRQVDQGWLJKWHQDQ\ORRVHFRQQHFWLRQV
o&KHFNDQGFRQILUPWKDWWKHJURXQGLVDGHTXDWH
INDICATOR LIGHTS AT THE FRONT OF THE TRAILER
ARE NOT WORKING.
o7KHOLIWJDWHKDVEHHQHTXLSSHGZLWKWZRLQGLFDWRUOLJKWVWKDWZLOODOORZWKHGULYHUWRVHHLIWKHJDWH
LVVWRUHGRUGHSOR\HG7KH“GREEN” LQGLFDWRUPHDQVWKDWKHJDWHLVVWRUHG7KH³RED´LQGLFDWRU
PHDQVWKDWWKHSODWIRUPLVGHSOR\HG,QRUGHUIRUWKHLQGLFDWRUVWRLOOXPLQDWHWKHZD\FRQQHFWRU
ZLOOQHHGWREHSOXJJHGLQ
o,IWKH“GREEN”RU” RED”LQGLFDWRUOLJKWVDUHQRWJHWWLQJYROWDJHFKHFNDOOFDEOHVDQGZLUHVIRU
VKRUWVDQGSRRUFRQQHFWLRQV&KHFNDQGWHVWWKH³Signal Lights Relay”FKHFNIRUYROWDJHRQD
IRUWKH“RED”LQGLFDWRUZKHQWKHSODWIRUPLVGHSOR\HGDQGIRUWKH´GREEN´ZKHQWKHSODWIRUP
LVVWRUHG
o&KHFNDQGLQVSHFWWKHSUR[LPLW\VZLWFKFRQILUPWKDWLWLVIXQFWLRQDO
o&KHFNDOORIWKHFDEOHVDQGZLUHVIRUGDPDJHDQGSRRUFRQQHFWLRQV&OHDQDQ\GLUW\FRQQHFWLRQV
DQGWLJKWHQDQ\ORRVHFRQQHFWLRQV
PLATFORM WARNING LIGHTS ARE NOT WORKING
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o&KHFNWKH“Work Lights Relay”DQGFRQILUPWKDWWKHUHOD\LVRSHUDWLQJSURSHUO\
o&KHFNDQGLQVSHFWWKHSUR[LPLW\VZLWFKFRQILUPWKDWLWLVIXQFWLRQDO
o&KHFNDOORIWKHFDEOHVDQGZLUHVIRUGDPDJHDQGSRRUFRQQHFWLRQV&OHDQDQ\GLUW\FRQQHFWLRQV
DQGWLJKWHQDQ\ORRVHFRQQHFWLRQV
19
04/23/19

Domino’s GT Side Loader
Trouble Shooting Guide
AMBER WARNING SIGNAL LIGHTS ON PLATFORM ARE
NOT WORKING
o&KHFNOLJKWVWHVWWKHODPSVWRFRQILUPWKDWWKHODPSGRHVQRWKDYHDEURNHQILODPHQW
o&KHFNWKH“Signal Lights Relay”DQGFRQILUPWKDWWKHUHOD\LVRSHUDWLQJSURSHUO\
o&KHFNDQGLQVSHFWWKHSUR[LPLW\VZLWFKFRQILUPWKDWLWLVIXQFWLRQDO
o&KHFNDOORIWKHFDEOHVDQGZLUHVIRUGDPDJHDQGSRRUFRQQHFWLRQV&OHDQDQ\GLUW\FRQQHFWLRQV
DQGWLJKWHQDQ\ORRVHFRQQHFWLRQV
DOOR LIGHT INSIDE TRAILER TO INDICATE PLATFORM
IS AT FLOOR LEVEL IS NOT WORKING.
o&KHFNOLJKWVWHVWWKHODPSVWRFRQILUPWKDWWKHODPSGRHVQRWKDYHDEURNHQILODPHQW
o&KHFNWKH”Door Lights Relay”DQGFRQILUPWKDWWKHUHOD\LVRSHUDWLQJSURSHUO\
o&KHFNDQGLQVSHFWWKHSUR[LPLW\VZLWFKFRQILUPWKDWLWLVIXQFWLRQDO
o&KHFNDOORIWKHFDEOHVDQGZLUHVIRUGDPDJHDQGSRRUFRQQHFWLRQV&OHDQDQ\GLUW\FRQQHFWLRQV
DQGWLJKWHQDQ\ORRVHFRQQHFWLRQV
20
04/23/19