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Sierra Troubleshooting Guide

CONDITIONS

POSSIBLE CAUSE

CORRECTION

DRUM WILL NOT ROTATE WITH

NO LOAD

1. Winch not mounted squarely causing
end bearings to bind the drum.

2. Brake damaged.

3. Gears damaged.

1. Check the mounting. Verify it's
square.

2. Inspect and replace brake.

3. Inspect and replace damaged
gears.

DRUM WILL NOT ROTATE

UNDER LOAD

1. Load greater than rated capacity of the
winch.

2. Low hydraulic system pressure.

3. Winch not mounted squarely causing
end bearings to bind the drum.

1. Reduce load to less than the
rated capacity of the winch.

2. Check pressure.

3. Check the mounting. Verify it's
square.

WINCH RUNS TOO SLOW

1. Low flow rate.

2. Hydraulic motor worn out.

1. Check flow rate.

2. Replace motor.

DRUM WILL NOT FREESPOOL

1. Clutch not disengaged.

2. Winch not mounted squarely causing
end bearings to bind thedrum.

1. Disengage clutch.

2. Check the mounting. Verify it's
square.

BRAKE WILL NOT HOLD

1. Brake damaged.

1. Inspect and replace brake.

LOAD DRIFTS

1. Worn brake.

1. Overhaul the brake assembly.

CABLE BIRDNESTS WHEN THE 

CLUTCH IS DISENGAGE

1. Drag screw improperly adjusted.

1. Adjust drag screw.

EXCESSIVE NOISE

1. Hydraulic system flow too high.

2. Drum in bind, winch not mounted
squarely.

1. Check flow rate.

2. Check the mounting. Verify it's
square.

DRUM CHATTERS in "REEL IN"

DIRECTION

1. Low hydraulic system flow.

2. Low hydraulic system relief pressure
setting.

1. Check flow rate.

2. Check relief valve setting.

CLUTCH DIFFICULT TO

ENGAGE

1. Detent screw damaged or improperly
adjusted.

1. Replace or readjust detent screw.

13

914281 - 1016 - A

Summary of Contents for Sierra H8

Page 1: ...Ramsey Winch Company P O Box 58151 Tulsa OK 74158 1510 USA Phone 1 800 777 2760 Fax 918 438 6688 http www ramsey com Operation Service and Maintenance Manual Sierra H8 Hydraulic Winch...

Page 2: ...This page intentionally left blank 914281 1016 A 2...

Page 3: ...ing 10 Cable Installation Set Screw 11 Sierra Hydraulic Winch Operation 12 Sierra Troubleshooting Guide 13 Overhaul Section Disassembly 14 Overhaul Section Assembly 25 Assemblies and BOMs 36 Dimension...

Page 4: ...ributor for the most up to date information Warnings Ensure the clutch is fully engaged before starting the winching operation Do not start the winch motor before engaging the clutch Do not disengage...

Page 5: ...ersonnel out from under and away from raised loads Do not use the winch to lift support or otherwise transport people Do not exceed maximum line pull ratings shown in specifications Shock loads must n...

Page 6: ...winching operations Always wear the appropriate personal protection equipment during winching operations Illustrates the engaged and disengaged positions for the clutch handle on winches with a manua...

Page 7: ...nd disengaged positions on winches with air shift The winch is intended to be used for vehicle recovery and pulling loads This image illustrates the minimum number of wraps of rope for the particular...

Page 8: ...1 2 3 4 5 RATED LINE PULL PER LAYER lbs 8000 6700 5700 5000 4500 kg 3620 3040 2585 2270 2040 CABLE CAPACITY ft 25 55 90 130 175 m 7 6 16 7 27 4 39 6 53 LINE SPEED AT 17 GPM fpm 48 56 64 73 81 mpm 14 5...

Page 9: ...Hydraulic System Layout 9 914281 1016 A...

Page 10: ...the final installed configuration Contact your local RAMSEY WINCH distributor or RAMSEY WINCH customer service for the recommended mounting kit The mounting kit will allow the winch to be mounted in...

Page 11: ...1 2 long hex socket drive setscrew to secure the cable to the drum The setscrew is included with the drum assembly 3 Carefully run the winch in the reel in direction Keeping tension on the end of the...

Page 12: ...the cable out direction until the load is off the cable 2 Pull the handle out and rotate 90 3 With the handle in the DISENGAGED position the cable can now be free spooled from the drum To engage the...

Page 13: ...ut 1 Check flow rate 2 Replace motor DRUM WILL NOT FREESPOOL 1 Clutch not disengaged 2 Winch not mounted squarely causing end bearings to bind thedrum 1 Disengage clutch 2 Check the mounting Verify it...

Page 14: ...Overhaul Section Disassembly Tie Bar Removal 1 Remove the capscrews 9 to remove the tie plates 7 914281 1016 A 14...

Page 15: ...washers 12 Remove the spacers 6 from the spring tensionser assembly 3 and remove the spring tensioner assembly Remove the motor assembly 2 from the winch 2 Remove the thrust disc 19 spring 18 and drag...

Page 16: ...14 out of the drum 15 Drive the roll pin 16 out of the coupling 14 2 Pull the shaft 5 out of the drum Remove the O ring 20 from the shaft 5 3 Lift the drum 15 off of the gear housing assembly and rem...

Page 17: ...n 2 Remove the brake housing 103 by removing the capscrews 111 and sealing washers 119 The dowel pins 124 will be loose when the brake housing is removed 3 Remove the brake cover 102 by removing capsc...

Page 18: ...Removing the Brakes 1 Remove the wave washers 121 stator plate 104 the brake disc 114 two separator plates 105 the brake disc the stator plate the brake disc and the cam 107 914281 1016 A 18...

Page 19: ...he brake spacer and cam pilot 109 2 Carefully press the cam pilot 109 from the brake spacer 108 3 Remove the brake actuator 115 and thrust washer 123 from the brake hub 112 4 Remove the brake hub 112...

Page 20: ...Removing the End Bearing 1 Remove the end bearing 203 by removing the capscrews 208 207 Remove the O ring 216 914281 1016 A 20...

Page 21: ...t carrier assembly 201 output ring gear 212 output sun gear 214 and carrier spacer 206 2 Remove the input carrier assembly 202 input ring gear 213 and input sun gear 215 Remove the O ring 217 and carr...

Page 22: ...Removing the O ring Adapter 1 Press the O ring adapter 204 from the gear housing Remove the O ring 218 from the O ring adapter 914281 1016 A 22...

Page 23: ...Manual Shift 1 Remove the jam nut 227 and the detent screw 226 2 Remove the handle 106 by driving out the roll pin 118 Slide the shifter shaft assembly 225 from the hous ing 224 23 914281 1016 A...

Page 24: ...m the plunger Slide the clutch springs 224 out of the gear housing 205 2 Remove the plug 221 from the gear housing Remove the air cylinder 211 from the gear housing Remove the shims 222 if present and...

Page 25: ...ll pin 220 to secure the shifter shaft on the air cylinder Lightly coat the shifter shaft assembly with 75w90 synthetic gear oil Insert the assembly into the gear housing Use the shims 222 to properly...

Page 26: ...h 75w90 syn thetic gear oil Slide the shifter shaft assembly 225 into the gear housing Slide the clutch handle 106 on the shifter shaft assembly and lock in place with the roll pin 118 2 Install the s...

Page 27: ...Gear Housing 1 Lightly lubricate the O ring 218 with MOBILITH SHC 007 grease and place on the O ring adapter 204 Press the O ring adapter into the gear housing 27 914281 1016 A...

Page 28: ...t carrier assembly 202 into the input ring gear 3 Place the carrier spacer 206 onto the input carrier assembly Insert the output sun gear 214 into the input car rier assembly Lightly apply MOBILITH SH...

Page 29: ...216 with grease and place in the channel in the gear housing 2 Align the end bearing 203 on the output carrier assembly Orient the end bearing as necessary Use the capscrews 207 208 to attach the end...

Page 30: ...input sun gear 2 Insert the brake actuator 115 into the brake hub until it rests on the internal lugs of the brake hub Rotate the brake actuator and press fully into the brake hub Insert the thrust wa...

Page 31: ...e corner of the cam surface in the relaxed position per cam alignment picture Ensure the cams can rotate so they are fully collapsed Install the brake discs 114 the stator plates 104 separator plates...

Page 32: ...th all the dowel pins Once the brake housing is on the dowel pins remove the string and use a 5 8 hex shaft to rotate the brake actuator to close the brake 6 While holding down the brake housing insta...

Page 33: ...place in the output car rier Lower the drum 15 onto the dowel pins ensuring they are properly lined up Lightly grease the O ring 20 and slide onto the shaft 5 Insert the roll pin 16 into the coupling...

Page 34: ...ner with the detent in the motor assembly and slide the motor assembly fully into coupler Use the capscrew 11 to loosely install one side of the spring retention plate 8 and the end bearing with the w...

Page 35: ...Tie Bar Installation 1 Install the tie bars 7 with the capscrews 9 35 914281 1016 A...

Page 36: ...Assemblies and BOMs Main Winch 914281 1016 A 36...

Page 37: ...INPUT SHAFT Short Drum 6 2 362350 SPACER 7 2 395458 TIE PLATE Long Drum 395476 TIE PLATE Short Drum 8 1 395461 SPRING RETENTION PLATE Long Drum 395477 SPRING RETENTION PLATE Short Drum 9 8 415409 CAPS...

Page 38: ...Brake Assembly Manual Shift 914281 1016 A 38...

Page 39: ...PACER 109 1 412177 CAM PILOT 110 4 415402 SCREW M5X0 8X10mm FLAT HEAD 111 6 415412 CAPSCREW M6 X 1 0 X 30mm LONG 112 1 431057 BRAKE HUB 113 1 438048 BRAKE DISC 114 3 438049 BRAKE DISC 115 1 438050 BRA...

Page 40: ...Gear Box Assembly Manual Shift 914281 1016 A 40...

Page 41: ...347 SPACER 207 8 415405 CAPSCREW M8X1 25X35mm BUTTON HEAD SOCKET 208 4 415413 M8 X 1 25 X 40mm FLAT HEAD SOCKET CAPSCREW 212 1 444120 OUTPUT RING GEAR 213 1 444126 INPUT RING GEAR 214 1 444144 OUTPUT...

Page 42: ...Brake Assembly Air Shift 914281 1016 A 42...

Page 43: ...PACER 109 1 412177 CAM PILOT 110 4 415402 SCREW M5X0 8X10mm FLAT HEAD 111 6 415412 CAPSCREW M6 X 1 0 X 30mm LONG 112 1 431057 BRAKE HUB 113 1 438048 BRAKE DISC 114 3 438049 BRAKE DISC 115 1 438050 BRA...

Page 44: ...Gear Box Assembly Air Shift 914281 1016 A 44...

Page 45: ...SOCKET 208 4 415413 M8 X 1 25 X 40mm FLAT HEAD SOCKET CAPSCREW 209 1 418549 SHOULDER BOLT 210 1 426070 PLUNGER 211 1 433027 AIR CYLINDER 212 1 444120 OUTPUT RING GEAR 213 1 444126 RING GEAR 214 1 444...

Page 46: ...46071 ROLLER SHAFT 402 1 346072 TENSIONER BAR 403 1 350775 ARM 404 1 350776 LEVER ARM 405 1 354065 ROLLER 406 4 412108 BUSHING 407 4 414819 CAPSCREW 250 20UNC X 50 LG 408 2 418223 WASHER 1 2 FLAT 409...

Page 47: ...Motor Assembly Motor Assembly BOM ITEM QTY PART NUMBER DESCRIPTION 301 1 297103 END BEARING ASSEMBLY 302 1 458050 MOTOR 303 2 415409 CAPSCREW M12X1 75X25mm SOCKET HEAD 47 914281 1016 A...

Page 48: ...Dimensional Drawing Manual Shift 914281 1016 A 48...

Page 49: ...Dimensional Drawing Air Shift 49 914281 1016 A...

Page 50: ...This page intentionally left blank 914281 1016 A 50...

Page 51: ...d neglected or which has not been installed correctly RAMSEY WINCH shall in no event be liable for special or consequential damages RAMSEY WINCH makes no warranty in respect to accessories such as bei...

Page 52: ...Ramsey Winch Company P O Box 58151 Tulsa OK 74158 1510 USA Phone 1 800 777 2760 Fax 918 438 6688 http www ramsey com...

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