Grizzly 511 Series User manual

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©Alcor 2011 All rights reserved
GRIZZLY
OPERATOR’S INSTRUCTION MANUAL
MODEL: ____________________ ENGINE MODEL: _______________
SERIAL: _____________________ ENGINE SERIAL: _______________
DATE OF PURCHASE: ____________
PURCHASED FROM: __________________________
WARNING: THIS PRODUCT IS DESIGNED AND MANUFACTURED TO GIVE
SAFE AND DEPENDABLE SERVICE IF OPERATED
ACCORDING TO INSTRUCTIONS. THE MANUFACTURER
PROVIDES THE FOLLOWING INSTRUCTIONS FOR USE AND
CARE OF THIS EQUIPMENT AND RELIES UPON THE
PURCHASER TO SEE TO IT THAT THESE INSTRUCTIONS ARE
MADE CLEAR TO THE PERSONS WHO WILL ACTUALLY BE
USING THE EQUIPMENT. FAILURE TO DO SO COULD RESULT
IN SERIOUS INJURY OR EQUIPMENT DAMAGE.
GRIZZLY EQUIPMENT
9475 PASCAL GAGNON STREET, ST-LÉONARD, QUEBEC, CANADA
TEL: [phone] FAX: [phone]
E-MAIL: [email protected] Web site: www.alcor-inc.com
511 000 / 512 000

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©Alcor 2011 All rights reserved
INDEX
INTRODUCTION .....................................................................................................................................................................................3
PREPARATION........................................................................................................................................................................................4
OPERATOR: .............................................................................................................................................................................................4
WEAR PROPER ATTIRE ........................................................................................................................................................................4
ROOF PREPARATION ............................................................................................................................................................................4
Inspect Roof Deck .....................................................................................................................................................................................4
Warning Line System ................................................................................................................................................................................4
GENERAL PREPARATION ....................................................................................................................................................................5
INSPECT THE PLATFORM AND ACCESSORIES ...............................................................................................................................5
SIZE AND CAPACITIES OF LADDER HOISTS ...................................................................................................................................5
COMPLETING THE PLATFORM ASSEMBLY.....................................................................................................................................6
MOUNTING THE PLATFORM ON LADDER.......................................................................................................................................7
SETTING UP THE LADDER HOIST ......................................................................................................................................................7
MOUNTING THE TOP BRACKET.........................................................................................................................................................8
RAISING THE LADDER .........................................................................................................................................................................8
LOWERING THE LADDER ..................................................................................................................................................................10
USE OF LADDER SUPPORT ................................................................................................................................................................10
POWER UNIT OPERATION (511500/512500).....................................................................................................................................11
CONNECTING TO LADDER................................................................................................................................................................11
SAFETY PRECAUTIONS:.....................................................................................................................................................................12
MAINTENANCE ....................................................................................................................................................................................12
POWER UNIT 511500/512500...............................................................................................................................................................12
GRAVEL HOPPER (511 050, 512 050)..................................................................................................................................................13
OPERATION...........................................................................................................................................................................................14
SAFETY HAZARDS...............................................................................................................................................................................14
Falls..........................................................................................................................................................................................................14
Burns........................................................................................................................................................................................................14
Heavy Lifting...........................................................................................................................................................................................14
Fire/Explosion..........................................................................................................................................................................................14
Electrocution............................................................................................................................................................................................15
Falling Objects.........................................................................................................................................................................................15
Flying Objects..........................................................................................................................................................................................15
Unguarded Machinery .............................................................................................................................................................................15

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©Alcor 2011 All rights reserved
INTRODUCTION
511 000, 512 000 LADDER HOISTS
Thank you for purchasing this quality GRIZZLY product. With proper use and care, this ladder hoist will
provide many years of reliable service. For the safety of all job-site personnel it is mandatory that the
instructions provided for the use and handling of the equipment be read and thoroughly understood by the
operators.
CAUTION
INTENDED USE: THIS MACHINE IS INTENDED TO BE USED FOR THE SOLE PURPOSE OF LIFTING
AND LOWERING MATERIAL AND SUPPLIES TO AND FROM THE ROOF. ANY OTHER USE OF THIS
EQUIPMENT VOIDS THE MANUFACTURER’S WARRANTY AND IS THE SOLE RESPONSIBILITY
OF THE OWNER/USER, SHOULD ANY DAMAGE OR INJURY MAY OCCUR.

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©Alcor 2011 All rights reserved
PREPARATION
OPERATOR:
START BY READING AND FULLY UNDERSTANDING OPERATING INSTRUCTIONS. IF
SOMETHING IS NOT UNDERSTOOD, HAVE SOMEONE ELSE READ AND EXPLAIN THE
INSTRUCTIONS TO THE OPERATOR OR CALL THE MANUFACTURER FOR INFORMATION. AN
UNINFORMED OPERATOR CAN SUBJECT HIMSELF AND OTHERS TO DEATH OR SERIOUS
INJURY.
WEAR PROPER ATTIRE
Safety glasses are recommended and must be worn if any roof cutting or scraping is being done in the vicinity.
Safety glasses and or face shield are also necessary when working with hot stuff.
Wear properly fitting clothes. Tight clothing can restrict movement and slow down reaction time in a
dangerous situation. Loose fitting clothing can be dangerous and cause serious injury if it gets caught in moving
mechanical parts. Wear a long-sleeved shirt, buttoned at the cuffs, safety shoes, and pants without cuffs, and
knit wrist type gloves.
Hard hat must me worn by operator when work is being done.
ROOF PREPARATION
Inspect Roof Deck
Before allowing equipment and personnel access to roof, make certain roof is strong enough to support the
weight. Check load limits of deck with owner, builder or architect. Clear the work area of all potentially
dangerous obstacles that could cause personal injury to the operator or others. Keep unauthorized people away
from construction area. Check to see that all roof openings are guarded to protect against falls.
Warning Line System
The operation of this piece of equipment must be in compliance with Federal OSHA standards governing safety
perimeters with respect to the use of power equipment. When operating parallel to roof edge warning line
system must be at least six feet from edge. When operating perpendicular to edge warning line must be ten feet
from roof edge. For specific information on warning lines, the use of guard rails and motion-stopping-safety
systems, refer to section on OSHA Law.

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©Alcor 2011 All rights reserved
GENERAL PREPARATION
Clear the work area of all potentially dangerous obstacles that could cause personal injury to the operator or
others. Keep unauthorized people away from construction area.
INSPECT THE PLATFORM AND ACCESSORIES
Make certain top bracket, ladder shoes, ladder, and platform are in safe operating condition, to be operated by
trained personnel. The ladder hoist should be clear of ground objects and overhead obstacles, such as power
lines. Make sure everyone on the ground is completely clear of the hoisting area. Do not exceed the weight and
size capacity of your ladder hoist. Use only on a flat and level surface. Do not use if you have any doubts.
SIZE AND CAPACITIES OF LADDER HOISTS
MODEL 511000 LH 250 ladder hoist
17" wide track
250 lbs lifting capacity
GX120 or GX160 power unit
44' maximum length
ladder support required at heights exceeding 28'
hoist speed varies to 220 ft. /min.
MODEL 512000 LH 400 ladder hoist
24" wide track
400 lbs lifting capacity
GX120 or GX160 power unit
44' maximum length
ladder support required at heights exceeding 28'
hoist speed varies to 110 ft. /min.
NOTE: Platform speeds and capacities are average and are based on 3/16 inch diameter of cable. As cable
builds up on drum, lifting speed increases and lifting capacity decreases in direct proportion to drum diameter.

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©Alcor 2011 All rights reserved
COMPLETING THE PLATFORM ASSEMBLY
Assemble the platform as follows:
1. Remove all parts from the box
2. You should have;
1 main frame and platform
1 pivot bracket with wheels
2 braces
1bottom sheave (LH 400 only)
3. Install braces #38 to point “A” and “B”, tighten all bolts securely.
4. Connect #33 pivot bracket to point “C” making sure to install pivot bracket with offset wheels #14
closest to ladder.
A
#38
B
C
#33
A
Fig. 3
Fig. 2

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©Alcor 2011 All rights reserved
MOUNTING THE PLATFORM ON LADDER
Both models have the cross ties offset from the center of the rails to allow passage of the platform wheels.
Before erecting the ladder, lay the bottom 16 ft. ladder section on the ground with the cross ties closest to the
ground and the ladder shoes as shown.
The assembled platform will slide onto rails from the top of the ladder section (opposite the shoes.) The
platform bumper should be on the bottom facing the shoes. Roll platform down the ladder without striking the
shoes and securely tie it to any cross tie to prevent movement when raising the ladder.
SETTING UPTHE LADDER HOIST
The standard sectional platform hoist consists of three sections of ladder; a 16 ft. bottom section with shoes, an
8 ft. and a 4 ft. section, both with splice plates bolted permanently to their bottom end. These sections may be
joined together with their splice plates by sliding the bottom of one section into the top of lower section and
installing wing nuts and carriage bolts provided. Ladders of 16 ft., 20ft, 24 ft., and 28 ft. can be assembled as
desired from these three sections. Select a length that will allow the top of the assembled ladder to project 2 to
3 ft. above the cornice or eave of roof.
For longer ladder lengths, a 16 ft. center section with splice plates attached is available to provide ladders up to
44 ft. in 4 ft. increments. Lengths over 28 ft. require the use of a ladder support to provide additional support
for these long ladders.
Warning: Tighten all bolts and nuts securely. If all bolts are not in place and tightened securely, ladder failure
may occur under load.
Fig. 4

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©Alcor 2011 All rights reserved
MOUNTING THE TOP BRACKET
Slide top bracket into end of the top ladder section and bolt securely to the ladder. Make sure top sheave is
centered with cross ties (fig. 5), or cable will cut though cross ties.
RAISING THE LADDER
Two alternate methods are suggested for raising the ladder to its operating position.
PROCEDURE A
1. Lay the assembled ladder with platform and top bracket attached parallel to the building wall that is to
support the ladder.
2. Use a man on the roof with a rope dropped from the roof and attached to the top bracket to pull up the
ladder while a man on the ground, with his feet braced against the ladder shoes to keep the bottom of
ladder from slipping, aids in raising by pulling against the rails, cross ties or platform.
3. Another man on the ground may aid in erecting by “walking” the ladder up hand over hand on the rails
or cross ties. When ladder reaches a vertical position, carefully turn the ladder away from the building
where ladder is to be supported. Allowance must be made for an overhand on building.
Fig. 5
WARNING: KEEP LADDERS CLEAR OF ALL ELECTRICAL WIRES AND
EQUIPMENT. NEVER CLIMB THE LADDER.
CAUTION: BECAUSE OF ITS LONG LENGTH AND WITH THE TOP BRACKET
ATTACHED, THE LADDER ASSEMBLY IS EXTREMELY TOP HEAVY AND
MUST BE KEPT UNDER CONTROL AT ALL TIMES.

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©Alcor 2011 All rights reserved
ALTERNATE PROCEDURE B
1. Place ladder perpendicular to building with bottom shoes resting against building to prevent slipping.
2. Use a man on the roof with rope dropped from the roof and attached to the top bracket to pull up the
ladder.
3. When track reaches a vertical position, carefully turn the ladder 180° with platform away from building.
Allowance must be made for an overhang of building.
AFTER USING ONE OF THE PROCEDURES (A OR B) CONTINUE AS FOLLOWS:
4. Securely tie ladder to the roof with a rope fastened to a cross tie or top bracket to prevent ladder from
slipping. Platform will not roll on track if rope is fastened around the rails
5. Mount the power unit on the 3rd and 5th ladder cross ties and clamp in place. Fasten or bolt the operating
handles on the power hoist. When facing the power unit from the rear or building side of the ladder, the
power unit handles are on your right.
6. Using a rope from the roof and with brake released, pull the hoist cable to the roof on the underside of
ladder and reeve through the sheave on the top bracket. Drop the cable to ground (on platform side of
the ladder) and fasten to shackle provided on the platform.
NOTE: The LH 400 requires a double line. After dropping cable end to ground, reeve cable through the
sheave on LH 400 platform and pull end once more to the roof on platform side of ladder. Fasten end to
shackle provided on top bracket.
7. Remove the tie rope holding platform in position on the ladder.
8. Make certain that both ladder shoes or spikes are firmly resting on a level surface. This prevents ladder
slippage or uneven loading of ladder which could cause damage or injury to equipment or personnel.
9. Attach accessories to platform as required. Before operating read and understand the power hoist
operating instructions. Your platform hoist is now ready for use.

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©Alcor 2011 All rights reserved
LOWERING THE LADDER
When dismantling and lowering the equipment, reverse the erection procedure.
USE OF LADDER SUPPORT
Ladder lengths in excess of 28 feet require the use of ladder support. The table below provides the suggested
information for the distance of the bottom of the ladder to the building and the location of the ladder support for
various conditions.
Building
Height (feet)
Length of
Track (feet)
Base of track to
Building
Track support
location Cross Tie
to Bottom
12
16
3' 0"
Not required
16
20
4' 0"
Not required
20
24
5' 0"
Not required
24
28
6' 0"
Not required
28
32
7' 0"
13th
32
36
8' 0"
15th
36
40
9' 0"
18th
40
44
10' 0"
20th
WARNING: BEFORE LOWERING LADDER, CHECK CAREFULLY FOR
PROXIMITY OF ELECTRICAL POWER LINES.
WARNING: TIGHTEN ALL BOLTS AND NUTS SECURELY. IF ALL BOLTS
ARE NOT IN PLACE AND TIGHTENED SECURELY, LADDER
FAILURE MAY OCCUR UNDER LOAD.