Martin UCGS Series User manual

Martin®Modular
Slider Cradle
Operator’s Manual
M3786
Go to Martin®Modular Slider Cradle web page

Important
MARTIN ENGINEERING HEREBY DISCLAIMS ANY LIABILITY FOR: DAMAGE DUE TO
CONTAMINATION OF THE MATERIAL; USER’S FAILURE TO INSPECT, MAINTAIN AND TAKE
REASONABLE CARE OF THE EQUIPMENT; INJURIES OR DAMAGE RESULTING FROM USE OR
APPLICATION OF THIS PRODUCT CONTRARY TO INSTRUCTIONS AND SPECIFICATIONS
CONTAINED HEREIN. MARTIN ENGINEERING’S LIABILITY SHALL BE LIMITED TO REPAIR
OR REPLACEMENT OF EQUIPMENT SHOWN TO BE DEFECTIVE.
Observe all safety rules given herein along with owner and Government standards and regulations. Know
and understand lockout/tagout procedures as defined by American National Standards Institute (ANSI)
z244.1-1982, American National Standard for Personnel Protection - Lockout/Tagout of Energy Sources -
Minimum Safety Requirements and Occupational Safety and Health Administration (OSHA) Federal
Register, Part IV, 29 CFR Part 1910, Control of Hazardous Energy Source (Lockout/Tagout); Final Rule.
The following symbols may be used in this manual:
DANGER
!
Danger: Immediate hazards that will result in severe personal injury or death.
WARNING
!
Warning: Hazards or unsafe practices that could result in personal injury.
CAUTION
!
Caution: Hazards or unsafe practices that could result in product or property damages.
IMPORTANT
Important: Instructions that must be followed to ensure proper installation/operation of equipment.
NOTE
Note: General statements to assist the reader.

Martin Engineering M3786-03/19 iMartin®Modular Slider Cradle
Table of Contents
Section Page
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
List of Tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ii
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Materials required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Before Installing Slider Cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Installing Slider Cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Installation on Standard Stringer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installing Slider Bars and Rolls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
After Installing Slider Cradle. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Weekly Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Adjusting for Wear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Turning Bars Over . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Troubleshooting/Installation Checklist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Part Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table of Contents

Martin Engineering M3786-03/19 ii Martin®Modular Slider Cradle
List of Figures
Figure Title Page
1 Measuring for Slider Cradle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Martin®Modular Slider Cradle, P/N UCGS-XXXXXXXXAS. . . . . . . . . . . . . . . . . . . . 11
3 Martin®Modular Slider Cradle Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Conveyor Products Warning Label, P/N 23395 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
List of Tables
Table Title Page
I Martin®Modular Slider Bar Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
II Martin®Modular Slider Cradle Part Numbers and Quantities . . . . . . . . . . . . . . . . . . . . . 14
List of Figures/Tables

Martin Engineering M3786-03/19 1Martin®Modular Slider Cradle
Introduction
General The Martin®Modular Slider Cradle holds conveyor belts in a stable, sag-free
position to allow effective sealing. By minimizing belt vibration and sag, the
Martin®Modular Slider Cradle reduces escaping material and risk of damage
to the belt and conveyor accessories. Martin®Modular Slider Cradle bars
provide a low-friction, self-lubricating surface for conveyor belts to skim over
without heat buildup or undue wear on the belt surface or bars (see
specifications in Table I). The Martin®Modular Slider Cradle is not intended
to absorb impact.
Martin®Modular Slider Cradles are recommended for moderate- to severe-
duty belts from 36- to 60-in. (1000- to 1600-mm) wide. Cradles are not
recommended for conveyors operating at speeds over 700 fpm (3.5 m/s) or
that are less than 50 ft (15 m) in length. To improve belt support on short
conveyors or high-speed belts, contact Martin Engineering.
The Martin®Modular Slider Cradle conforms to CEMA Standard No. 502-
1980 Bulk Material Conveyor Troughing and Return Specifications (CEMA
Class D6).
Table I. Martin®Modular Slider Cradle Bar Specifications
References The following documents are referenced in this manual:
• American National Standards Institute (ANSI) z244.1-1982, American
National Standard for Personnel Protection - Lockout/Tagout of Energy
Sources - Minimum Safety Requirements, American National Standards
Institute, Inc., 1430 Broadway, New York, NY 10018.
• Federal Register, Volume 54, Number 169, Part IV, 29 CFR Part 1910,
Control of Hazardous Energy Source (Lockout/Tagout); Final Rule,
Department of Labor, Occupational Safety and Health Administration
(OSHA), 32nd Floor, Room 3244, 230 South Dearborn Street, Chicago, IL
60604.
Safety All safety rules defined in the above documents, and all owner/employer
safety rules must be strictly followed when working on the Martin®Modular
Slider Cradle.
Materials required Only standard hand tools are required to install and service this equipment.
Bar construction UHMW polyethylene
Bar dimensions 2.9-in. (72-mm) high
5.0-in. (127-mm) wide
48-in. (1220-mm) long
Coefficient of friction 0.5
Specific gravity 0.94
Tensile strength 6800 lb at 73°F (23°C)
Hardness 62 (Shore D)
Service temperature -20 to 140°F (-29 to 60°C)
Introduction

Martin Engineering M3786-03/19 2Martin®Modular Slider Cradle
Before Installing Slider Cradle
IMPORTANT
The delivery service is responsible for damage occurring in
transit. Martin Engineering CANNOT enter claims for
damages. Contact your transportation agent for more
information.
1. Inspect shipping container for damage. Report damage to delivery service
immediately and fill out delivery service’s claim form. Keep any damaged
goods subject to examination.
2. Remove Martin®Modular Slider Cradle from shipping container.
Equipment in container should include the following:
• Martin®Modular Slider Cradle Assembly.
• Two Conveyor Products Warning Labels, P/N 23395.
3. If anything is missing, contact Martin Engineering or representative.
WARNING
!
Before installing equipment, turn off and lock out/tag out
energy source to conveyor and conveyor accessories.
4. Turn off and lock out/tag out energy source according to ANSI standards
(see “References”).
WARNING
!
If equipment will be installed in an enclosed area, gas level or
dust content must be tested before using a cutting torch or
welding. Using a cutting torch or welding in an area with gas
or dust may cause an explosion.
5. If using a cutting torch or welding, test atmosphere for gas level or dust
content. Cover conveyor belt with fire-retardant cover.
6. If not already present, install an impact idler 1 in. (25 mm) ahead of and
1 in. (25 mm) behind cradle’s location. Make sure idlers are straight and
centered under conveyor belt.
7. Remove any unnecessary idlers.
Before Installation

Martin Engineering M3786-03/19 3Martin®Modular Slider Cradle
Installing Slider Cradle
Figure 1. Measuring for Slider Cradle
1. See Figure 1. The distance between top of belt and bottom of wear liners
must increase over length of transfer point. If necessary, modify chute
walls and/or wear liners.
2. Mark center of loading point on stringer both sides of belt.
3. Install an idler 1 in. (25 mm) before and 1 in. (25 mm) after cradle.
24 (610)
28.88 (734)
48 (1220)
1 (25) 1 (25)
Dimensions—in. (mm)
.375 (9)
.75 (19)
Installation

Martin Engineering M3786-03/19 4Martin®Modular Slider Cradle
Installation on
Standard Stringer
1. Measure 10-9/16 in. (268 mm) from edge of idler roll and mark location
as center of first cross support.
2. Measure 28-7/8 in. (734 mm) from first mark and mark location as center
of second cross support.
3. Repeat procedure on opposite side of conveyor.
4. Position cross supports on stringer according to locations marked in
steps 1 and 2.
5. Make sure cross supports are perpendicular to belt and centered below
belt, or bars will wear unevenly and maintenance will be difficult.
NOTE
Martin Engineering recommends bolting rather than welding
cross supports to stringers for easier accessibility and
maintenance.
6. Bolt or weld cross supports (B) to stringers (A) as follows:
a. If bolting, drill or cut 9/16-in. holes in stringers through mounting
holes in feet of cross supports. Install cap screw, flat washer,
compression washer, and nut (C) in each hole to secure cross supports
to stringers.
b. If welding, clean stringer of rust and dirt. Then stitch weld cross
supports to stringers.
Installation

Martin Engineering M3786-03/19 5Martin®Modular Slider Cradle
Installing Slider
Bars and Rolls
1. Slide center roll assembly (A) onto cross supports. Position assembly
under center of belt.
2. Slide wing weldment (B) with bars onto cross supports until weldment
contacts center roll assembly. Install wing weldment on opposite side.
3. Center cradle under belt.
4. Tighten cap screw (C) on lock mechanism to lock cradle in place.
5. Make sure there is 1 in. of clearance between end of bar and idler.
6. Loosen nuts (D and E) and position the slider bars so that they are
supporting conveyor belt below chute wall and skirting.
7. Tighten all cap screws and nuts.
A. Center Roll Assembly
B. Wing Weldment (2 used)
C. Cap Screw
D. Washer and Nut (8 used)
E. Cap Screw, Washers, and Nut (8 used)
Installation

Martin Engineering M3786-03/19 6Martin®Modular Slider Cradle
After Installing Slider Cradle
IMPORTANT
Read entire section before beginning work.
1. Thoroughly wipe outside chute walls clean above Slider Cradle on both
sides of chute. Place a Conveyor Products Warning Label (P/N 23395) on
each chute wall visible to belt operator.
WARNING
!
Failure to remove tools from installation area and conveyor
belt before turning on energy source can cause serious injury
to personnel and damage to belt.
2. Remove all tools and fire-retardant cover from installation area and
conveyor belt.
DANGER
!
Do not touch or go near conveyor belt or conveyor accessories
when conveyor belt is running. Body or clothing can get
caught and pull body into conveyor belt, causing severe injury
or death.
3. Turn on conveyor belt for one hour.
WARNING
!
Before adjusting Martin®Modular Slider Cradle, turn off and
lock out/tag out energy source to conveyor belt and conveyor
accessories.
4. After one hour of operation, turn off and lock out/tag out energy source
according to ANSI standards (see “References”).
5. Make sure all fasteners are tight. Tighten if necessary.
6. Inspect cradle for wear. (A small amount of break-in wear may be found.
This will stop once bars wear to conveyor belt contour.)
7. If excessive wear, uneven wear, or some other problem exists, see
“Troubleshooting/Installation Checklist.”
8. If necessary, adjust height of slider bars.
After Installation

Martin Engineering M3786-03/19 7Martin®Modular Slider Cradle
Weekly Maintenance
IMPORTANT
Read entire section before beginning work.
WARNING
!
Before servicing Slider Cradle, turn off and lock out/tag out
energy source to conveyor belt and conveyor accessories.
Adjusting for
Wear
1. Turn off and lock out/tag out energy source according to ANSI standards
(see “References”).
2. Make sure all fasteners are tight. Tighten if necessary.
3. Check slider bars for wear. If bar is not contacting belt, but has more than
1/16 in. (2 mm) of material left at slider bar, adjust bar height as follows:
a. Loosen nuts (A and B).
b. Move bar and attaching components until proper bar-to-belt contact
occurs.
c. Tighten nuts.
Weekly Maintenance

Martin Engineering M3786-03/19 8Martin®Modular Slider Cradle
Turning Bars Over
1. Loosen cap screw (C) and remove wing weldments.
2. Remove cap screws and nuts (A) on both wing weldments.
3. Remove bars (B) and turn upside down.
4. Reinstall bars and tighten all bolts.
WARNING
!
Failure to remove tools from installation area and conveyor
belt before turning on energy source can cause serious injury
to personnel and damage to belt.
5. Remove all tools from maintenance area.
DANGER
!
Do not touch or go near conveyor belt or conveyor accessories
when conveyor belt is running. Body or clothing can get
caught and pull body into conveyor belt, causing severe injury
or death.
6. Start conveyor belt.
Weekly Maintenance

Martin Engineering M3786-03/19 9Martin®Modular Slider Cradle
Troubleshooting/Installation Checklist
Troubleshooting If you are experiencing problems with Martin®Modular Slider Cradle, see
below.
Installation
Checklist
If after taking the corrective actions suggested under “Troubleshooting”
you are still experiencing problems, check for the following:
Symptom Corrective Action
High slider bar wear Bar is above idler height or is not parallel to belt travel. Adjust bar
height or position.
Uneven slider bar wear Bar is not parallel to belt travel or is under impact. Inspect loading
area and divert impact or relocate cradle.
Installation Checklist
- Two cross supports are positioned according to Figure 1.
- Two support rollers are used for belts 36- through 60-in. (1000- through 1600-mm) wide
and are centered under belt.
- Slider bars contact belt and follow contour of belt.
- Ends of slider bars are 1 in. (25 mm) from face of idlers.
Troubleshooting/Installation Checklist

Martin Engineering M3786-03/19 11 Martin®Modular Slider Cradle
Part Numbers
This section provides product names and corresponding part numbers for
Martin®Modular Slider Cradle and related equipment. Please reference part
numbers when ordering.
Martin®
Modular Slider
Cradle
Martin®Modular Slider Cradle: P/N UCGS-XXXXXXXXAS.
See Figures 2 and 3.
3. The next X indicates stringer spacing:
S = Standard Base
W = Wide Base
4. The next XX indicates trough angle:
20 = 20 degrees
35 = 35 degrees
45 = 45 degrees
5. The next X indicates roll option:
6 = 6” diameter roll
F = Frame only (no rolls)
N = No roll or center sleeve weldment
6. The next X indicates bar type:
P = UHMW
U = Urethane
C = 304 Stainless Steel
7. The next X indicates paint options:
P = Painted
S = Stainless Steel
8. The next X indicates shipping options:
A = Fully assembled
9. The next X indicates stringer type:
S = Standard
NOMENCLATURE — UCGS XX X XX X X X X X
123456789
Part Numbers

Martin Engineering M3786-03/19 12 Martin®Modular Slider Cradle
Figure 2. Martin®Modular Slider Cradle, P/N UCGS-XXXXXXXXAS
16,17,18
9
21
6,7
11
3
23
13
15,20
12
20,21,22 14
10
6,7 8
4
5
16,17,18
19
Part Numbers

Martin Engineering M3786-03/19 13 Martin®Modular Slider Cradle
NS = Not Shown
*XX indicates belt width.
**First XX indicates belt width. Next XX indicates trough angle.
Figure 2. Martin®Modular Slider Cradle, P/N UCGS-XXXXXXXXAS
Item Description Part No. Qty
1 Cross Support Assembly UC-001500-XX* 1
2 Formed “C” Channel UC-001501-XX* 1
3 Center Roll Weldment UC-002010-XX* 1
4 Wing Weldment UC-002020-XXXX** 2
5 Locking Weldment UC-002540-XX* 1
6 Washer Flat 5/8 Narrow 16814 1
7 Draw Bolt 5/8-11NC SS UC-001504 1
8 Nut Elastic Lock 5/8-11NC ZP 22624 1
9 Formed Angle UC-002041-0X 4
10 Bar Holder Weldment UC-002050-0X 4
11 UHMW Bar Table II Table II
12 Spacer UC-002043 Table II
13 Tie Tab UC-002001 Table II
14 Roll TMIRD6-XXSP* Table II
15 Screw HHC 3/8-16NC ZP UC-002060-0X 4
16 Washer Flat 1/2 Narrow ZP 31010 Table II
17 Washer Split Lock 1/2 ZP 17329 Table II
18 Nut Hex 1/2-13NC Gr 5 ZP 36739 Table II
19 Screw HHC 1/2–13NC x 1-1/2 Gr 5 ZP 11763 8
20 Washer Flat 3/8 Wide ZP 18007 8
21 Washer Split Lock 3/8 ZP 11978 4
22 Nut Hex 3/8-16NC Gr 5 ZP 11770 4
23 Screw Tapping HWH 1/4-20NC x 3/8 ZP 38608 Table II
24 (NS) Hardware Kit UC-002070-S 1
25 (NS) Label Kit 34769 1
26 (NS) Operator’s Manual M3786 1
27 (NS) Spacer Table II Table II
28 (NS) UCGS SS Bar Support Bracket Table II Table II
Part Numbers

Martin Engineering M3786-03/19 14 Martin®Modular Slider Cradle
Table II. Martin®Modular Slider Cradle Part Numbers and Quantities
Part No. P/N
Item 11
Qty
Item 27
P/N
Item 14
UCGS-XXXXXXPXXX UC-002040 0 —
UCGS-XXXXXXUXXX — 0 —
UCGS-XXXXXXCXXX 37502-C 8 UC-002044
Part No. P/N
Item 14
Qty
Item 13
Qty
Item 14
Qty
Item 23
UCGS-XXXXX6XXXX TMIRD6-XXSP 4 2 4
UCGS-XXXXXFXXXX — 4 2 4
UCGS-XXXXXNXXXX — 0 0 0
Part Numbers

Martin Engineering M3786-03/19 15 Martin®Modular Slider Cradle
Figure 3. Martin®Modular Slider Cradle Dimensions
Part No. Dim. A Dim. B Dim. C Dim. D Dim. E
UCGS-24S20XXXAS 24.20 (615) 36.00 (914) 33.00 (838) 8.50 (216) 11.40 (290)
UCGS-24S35XXXAS 18.85 (479) 36.00 (914) 33.00 (838) 8.50 (216) 11.90 (302)
UCGS-24S45XXXAS 18.18 (457) 36.00 (914) 33.00 (838) 8.50 (216) 12.95 (329)
UCGS-30S20XXXAS 27.19 (691) 42.00 (1067) 39.00 (991) 8.50 (216) 11.40 (290)
UCGS-30S35XXXAS 23.01 (584) 42.00 (1067) 39.00 (991) 8.50 (216) 12.64 (321)
UCGS-30S45XXXAS 21.17 (538) 42.00 (1067) 39.00 (991) 8.50 (216) 13.39 (340)
UCGS-36S20XXXAS 29.69 (754) 48.00 (1219) 45.00 (1143) 8.50 (216) 11.39 (289)
UCGS-36S35XXXAS 27.35 (695) 48.00 (1219) 45.00 (1143) 8.50 (216) 13.34 (339)
UCGS-36S45XXXAS 25.03 (636) 48.00 (1219) 45.00 (1143) 8.50 (216) 14.28 (363)
UCGS-42S20XXXAS 40.68 (1033) 54.00 (1372) 51.00 (1295) 9.00 (229) 13.49 (343)
UCGS-42S35XXXAS 37.15 (944) 54.00 (1372) 51.00 (1295) 9.00 (229) 16.51 (419)
UCGS-42S45XXXAS 33.84 (860) 54.00 (1372) 51.00 (1295) 9.00 (229) 18.06 (459)
UCGS-48S20XXXAS 46.43 (1179) 60.00 (1524) 57.00 (1448) 9.00 (229) 14.14 (359)
UCGS-48S35XXXAS 32.41 (823) 60.00 (1524) 57.00 (1448) 9.00 (229) 17.59 (447)
UCGS-48S45XXXAS 38.73 (984) 60.00 (1524) 57.00 (1448) 9.00 (229) 19.38 (492)
UCGS-54S20XXXAS 52.19 (1326) 66.00 (1676) 63.00 (1600) 9.25 (235) 15.07 (383)
UCGS-54S35XXXAS 47.66 (1211) 66.00 (1676) 63.00 (1600) 9.25 (235) 18.84 (479)
UCGS-54S45XXXAS 43.47 (1104) 66.00 (1676) 63.00 (1600) 9.25 (235) 21.14 (537)
UCGS-60S20XXXAS 58.05 (1474) 72.00 (1829) 69.00 (1753) 9.25 (235) 15.61 (396)
UCGS-60S35XXXAS 53.04 (1347) 72.00 (1829) 69.00 (1753) 9.25 (235) 19.98 (507)
UCGS-60S45XXXAS 48.35 (1228) 72.00 (1829) 69.00 (1753) 9.25 (235) 22.47 (571)
UCGS-72S20XXXAS 68.27 (1734) 84.00 (2134) 81.00 (2057) 9.50 (241) 17.16 (436)
UCGS-72S35XXXAS 63.01 (1600) 84.00 (2134) 81.00 (2057) 9.50 (241) 22.43 (570)
UCGS-72S45XXXAS 57.91 (1471) 84.00 (2134) 81.00 (2057) 9.50 (241) 25.45 (646)
Dim. A
Dim. C
Bottom Hole Centers
Dim. B
Outside Stringer Width
Dim. D
Dim. E
Part Numbers

Martin Engineering M3786-03/19 16 Martin®Modular Slider Cradle
Figure 4. Conveyor Products Warning Label, P/N 23395
Lock out and/or tag out all energy sources to
Cierre y/o rotule todas las fuentes de energía al
Label P/N 23395
conveyor system and loading system before
performing any work on conveyor or conveyor
accessories. Failure to do so could result in
severe injury or death.
sistema transportador y al sistema de carga antes
de realizar cualquier trabajo en el transportador
o sus accesorios. El no hacerlo puede resultar
en heridas serias o muerte.
ADVERTENCIA
WARNING
!
!
Part Numbers