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little mule LMSC Series, Operating, Maintenance & Parts Manual

The little mule LMSC Series is a versatile and dependable heavy-duty lifting solution for a variety of industries. To ensure optimal performance and longevity, it is essential to have the Operating, Maintenance & Parts Manual at hand. Download this valuable manual for free from our website to unlock the full potential of your little mule LMSC Series product.

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12

Ref.

.75 Ton

1.5 Ton

No.

Description

Part No.

Part No.

Qty

1

Pinion Shaft

IRB5001

KRB5001

1

2

Pinion with Pinion Gear

IRB4002T

KRB4002T

2

3

Load Gear

IRB4004

KRB5004

1

4

Load Sheave

IRB5005

KRB5005

1

†

5

Load Chain

T56

V71

1

6

Pawl

IRB5007

KRB5007

2

7

Disc Hub

IRB5008

KRB5008

1

8

Ratchet Wheel

IRB5009

KRB5009

1

9

Chain Guide

IRB5012

KRB5012

2

10

Stripper

IRB5015

KRB5015

1

11

Stop Grip

IRB40062T

KRB40062T

1

12

Gear Side Plate

IRB5018T

KRB5018T

1

13

Handle Side Plate

IRB5020U

KRB5020U

1

14

Disc Nut

IRB5023

KRB5023

1

15

Operating Handle

IRB5024T

KRB5024T

1

16

Spring Shaft

IRB4030

IRB3030

1

17

Shaft Base

IRB4031

IRB3031

1

18

Handle Pawl

GRB5032

KRB5032

1

19

Gear Cover

IRB5037

KRB5037

1

20

Ratchet Cover Assembly

IRB5040

KRB5040

1

21

Guide Handle

IRB5042

IRB5042

1

22

Top Hook Assembly

IRB5048U

KRB5048U

1

23

Yoke Pin

IRB5051

KRB5051

1

24

Bottom Hook Assembly

IRB5053U

KRB5053U

1

25

Collar for Pinion Shaft

IRB5059

IRB5059

1

26

Hook Latch Assembly

GRB5074T

KRB5074T

2

27

Change Over Spring

IRB4101

IRB3116

1

28

E-Ring

SRE8

SRE9

2

29

Pawl Spring

IRB5104

KRB5104

2

30

Brake Lining

IRB5105

KRB5105

2

31

Free-Chaining Spring

IRB5106

KRB5106

1

32

Spring Nut

HSN1M8

HSN1M8

8

33

Spring Nut

HSN1M6

HSN1M8

2

34

Upset Bolt

CUSM6X10S2

CUSM8X12S2

1

35

Name Plate

IRB5114LM

KRB5114LM

1

36

Plain Washer

PWM8M

PWM8M

1

37

Nylon Nut

HNN1M8

HNN1M8

1

38*

Chain Fastening Bolt

IRB4124T

KHH5048T

1

39

Cross Recessed Head Bolt

CBM5X25B3

CBM5X25B3

2

†

Specify the lift when placing an order for Load Chain.

* Includes Nut and Bolt.

NOTE:

When ordering spare parts please have Model, Capacity, Product Number and        
Quantity available.

LMSC.qxd  7/11/2002  4:24 PM  Page 12

www.stlcrane.com

McLaughlin Hoist & Crane

(636) 343-9700

Authorized Sales & Service - McLaughlin Hoist & Crane - For Parts or Serivce Call (636) 343-9700

Summary of Contents for LMSC Series

Page 1: ...ent as directed in the manual may cause injury Should you have any questions regarding this product please call Little Mule at 800 477 5003 Before using the hoist fill in the information below Model No Serial No Purchase Date Follow all instructions and warnings for inspecting maintaining and operating this hoist 3 4 to 6 Ton Model Numbers LMSC1500 LMSC3000 LMSC6000 LMSC12000 Operating Maintenance...

Page 2: ...k in the direction of loading 14 NOT use load chain as a sling or wrap load chain around load 15 NOT apply the load to the tip of the hook or the hook latch 16 NOT apply load unless load chain is properly seated in the chain wheel s or sprocket s 17 NOT apply load if bearing prevents equal loading on all load supporting chains 18 NOT operate beyond the limits of the load chain travel 19 NOT leave ...

Page 3: ... on lever at the same time More than one operator is likely to cause hoist overload 14 NOT allow your attention to be diverted from operating the hoist 15 NOT allow the hoist to be subjected to sharp contact with other hoists structures or objects through misuse 16 NOT adjust or repair the hoist unless qualified to perform such adjustments or repairs 17 NOT expose the unit to high temperatures in ...

Page 4: ...hook being accidentally turned over through the load chains See Figure 3 4 Confirm that the supporting structure is strong enough to support the full rated capacity of the lever hoist with a generous factor of safety 3 Guide Handle Selector Lever Operating Handle Rated Std Chain Minimum Pull on Length of Net Test Capacity Lift dia Distance lever to operating Weight Load tons ft x falls Between lif...

Page 5: ...ay cause the hook to elongate or bend These hooking methods may also obstruct the load chain flow to the load sheave and prevent the lever hoist from operating properly 6 Never run the chain out too far When the lever hoist is run out beyond the range of lift a dangerous excessive load will be imposed on the load chain stop grip and gearing 7 The selector lever must be set to the UP position when ...

Page 6: ...tion is for making quick large adjustments of the load chain length without load Set the selector lever to the N position and pull the load chain out in the desired direction Free chaining will not be possible during the following conditions 1 When the lever hoist is under a load 2 When the guide handle is in contact with something and not rotating freely 3 When the brake has locked from a large o...

Page 7: ... gears and bearings are well lubricated LOAD CHAIN Load chains worn out or elongated beyond the permissible dimensions must be replaced at once Replace the entire load chain immediately even if one link of the load chain is extensively worn out elongated or damaged HOOKS If the hook opening is elongated beyond the permissible dimension the hook is dangerously deformed and must be replaced at once ...

Page 8: ... No 110 If the load limiter cannot be corrected by adjusting the torque setting or if any of the parts are damaged then the load limiter must be replaced A special tool is required to adjust Item 110 properly Contact Factory Hoist Torque Range Model foot lbs LMSC1500 28 32 LMSC3000 59 66 LMSC6000 77 85 LMSC12000 77 85 NOTE Excessive torque will damage the load limiter and could cause equipment dam...

Page 9: ...e Wear or deformation of the load chain and load sheave Replace with new parts Noises during hoisting and lowering operation 1 Over hoisting or over lowering 2 Twist in the load chain causing it to get caught between load sheave and load chain guide 1 Operate the hoist in opposite direction 2 Operate the hoist in opposite direction and remove the twist from the load chain Operating handle becomes ...

Page 10: ...seness stripped or damaged threads Rivets Supporting Damage or wear which restricts ability to support Structure imposed loads Capacity Plate Missing damaged or illegible Decals NOTE Refer to Maintenance and Inspection Sections of the Hoist Maintenance Manual for further details FREQUENCY OF INSPECTION Frequent Indicates items requiring inspection daily to monthly Daily inspections may be performe...

Page 11: ...pection 15 16 Pinion Shaft Gear base bearing grease see Figure 13A Bearings Pinion Gear Teeth See Figures Bottom Block Shaft SAE 20 30 machine oil Monthly Yearly Yearly 15 16 Bearing Hook Swivel This lubrication schedule is based on a hoist operating in normal environmental conditions Hoists operating in adverse atmospheres containing excessive heat corrosive fumes or vapors abrasive dust etc shou...

Page 12: ... 6 28 11 24 38 26 5 10 4 9 12 7 30 8 30 20 14 15 34 21 36 37 31 39 35 17 27 16 18 33 32 LMSC qxd 7 11 2002 4 24 PM Page 11 www stlcrane com McLaughlin Hoist Crane 636 343 9700 Authorized Sales Service McLaughlin Hoist Crane For Parts or Serivce Call 636 343 9700 ...

Page 13: ... IRB5048U KRB5048U 1 23 Yoke Pin IRB5051 KRB5051 1 24 Bottom Hook Assembly IRB5053U KRB5053U 1 25 Collar for Pinion Shaft IRB5059 IRB5059 1 26 Hook Latch Assembly GRB5074T KRB5074T 2 27 Change Over Spring IRB4101 IRB3116 1 28 E Ring SRE8 SRE9 2 29 Pawl Spring IRB5104 KRB5104 2 30 Brake Lining IRB5105 KRB5105 2 31 Free Chaining Spring IRB5106 KRB5106 1 32 Spring Nut HSN1M8 HSN1M8 8 33 Spring Nut HS...

Page 14: ...29 3 22 30 23 12 9 10 5 4 7 34 8 34 20 14 15 38 35 21 40 36 37 18 16 31 17 39 43 41 Used on 6 Ton Models Used on 6 Ton Models LMSC qxd 7 11 2002 4 29 PM Page 13 www stlcrane com McLaughlin Hoist Crane 636 343 9700 Authorized Sales Service McLaughlin Hoist Crane For Parts or Serivce Call 636 343 9700 ...

Page 15: ...ock Frame QRB50533 2 26 Idle Sheave QRB5055 1 27 Wheel Pin QRB5056 1 28 Collar for Idle Sheave HH4100083 2 29 Collar for Pinion Shaft NRB5059 NRB5059 1 30 Hook Latch Assembly KRB5074T PRB5074T 2 31 Change Over Spring IRB3116 IRB3116 1 32 E Ring SRE9 SRE9 2 33 Pawl Spring NRB5104 NRB5104 2 34 Brake Lining KRB5105 KRB5105 2 35 Free Chaining Spring NRB5106 NRB5106 1 36 Spring Nut HSN1M10 HSN1M10 8 37...

Page 16: ...thout charge and the hoist will be returned transportation prepaid This warranty does not apply where deterioration is caused by normal Overloading and Improper Use Can Result In Injury TO AVOID INJURY Do not exceed working load limit load rating or capacity Do not use equipment to lift people or loads over people Use only alloy chain and attachments for overhead lifting Read and follow all instru...

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