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NRC 20CS Accompaniment To The Installation, Operation And Maintenance Manual

Composite slider wreckers
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OPERATION AND MAINTENANCE
COMPOSITE SLIDER WRECKERS
Model(s): 20CS - 25CS
April 24, 2023
Document number: 8923101 — Revision 0
Original Instructions
NRC-INDUSTRIES.COM
Serial number:

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  • Page 1 OPERATION AND MAINTENANCE COMPOSITE SLIDER WRECKERS Model(s): 20CS - 25CS April 24, 2023 Document number: 8923101 — Revision 0 Original Instructions NRC-INDUSTRIES.COM Serial number:...
  • Page 3 NRC Industries Inc. NRC Industries Inc. reserves the right to modify the information provided herein at any time without notice.
  • Page 4 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 5 O p e r a t i o n a n d M a i n t e n a n c e REVISION HISTORY Revision Date Description 2022-04-24 Initial release REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 6 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 7: Table Of Contents

    3.11 Using the remote control that has proportional controls 3.12 Using the remote control that has 6, 10 or 16 function buttons 4 MAINTENANCE 4.1 Safety guidelines 4.2 General maintenance 4.3 Lubrication REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 8 6.3 Pump failure 6.4 Truck failure 6.5 Underlift stinger failure 7 STORAGE 8 DISASSEMBLY AND DISPOSAL AUTHORIZED DISTRIBUTORS AND SERVICE PROVIDERS LOGBOOK OPERATOR RECORD REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 9: Limited Warranty

    NRC. WARRANTY SERVICE WILL BE PERFORMED WITHOUT CHARGE TO THE PURCHASER FOR PARTS. HOWEVER, THIS WARRANTY DOES NOT OBLIGATE INDUSTRIES NRC TO BEAR THE COST OF LABOR OR TRANSPORTATION CHARGES IN CONNECTION WITH THE REPAIR OR REPLACEMENT OF ANY PARTS FOUND TO BE DEFECTIVE, NOR SHALL IT APPLY TO A PRODUCT UPON WHICH REPAIRS OR ALTERATIONS HAVE BEEN MADE UNLESS AUTHORIZED BY INDUSTRIES NRC.
  • Page 10 G. NO DEALER WARRANTY - EXCEPT FOR CONDITIONS OR WARRANTIES WHICH MAY NOT BE EXCLUDED BY LAW, THE SELLING DEALER MAKES NO WARRANTY OF ITS OWN ON ANY ITEM WARRANTED BY INDUSTRIES NRC, AND MAKES NO WARRANTY ON OTHER ITEMS UNLESS IT DELIVERS TO THE PURCHASER A SEPARATE WRITTEN WARRANTY DOCUMENT SPECIFICALLY WARRANTING THE ITEM.

  • Page 11: Warranty Card

    Explain and demonstrate vehicle and Present completed Warranty registration. Accessory operation to Customer. Copy to Customer & fax copy to NRC Warranty Deptartment. PRE-DELIVERY INSPECTION Customer Signature This Warranty is not valid until approved by NRC Industries and all items on this form completed.
  • Page 12 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 13: Legal Standards And Requirements

    O p e r a t i o n a n d M a i n t e n a n c e LEGAL STANDARDS AND REQUIREMENTS The NRC sliding wreckers featured in this manual meet the following legal standards and requirements:...
  • Page 14 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 15: About This Manual

    Document conventions The following conventions are used throughout this document: NOTE: We highly recommend that you read this manual in full before using your NRC equipment. Disclaimer This manual, including the equipment specifications, is subject to change without notice.
  • Page 16 This manual is intended for use with the following models with serial numbers within the following ranges only: 20CS-001 to ... 25CS-001 to ... REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 17: Warning Messages

    Indicates a hazardous situation that, if not avoided, could result in minor or moderate injury. A caution may or may not involve a property damage hazard. Indicates information that should be read to avoid equipment damage. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 18 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 19: Description

    O p e r a t i o n a n d M a i n t e n a n c e DESCRIPTION The NRC composite slider is a dream machine, a tough and versatile unit for recovery work and extra-heavy towing. Specially designed for the most difficult tasks, the CS with its sliding system brings you the best "USABLE BOOM CAPACITY".
  • Page 20 The chassis supports all the wrecker components. Figure 1 and Figure 2 show the wrecker with and without its underlift. FIGURE 1  - CHASSIS WITHOUT UNDERLIFT (EXAMPLE) REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 21 The wrecker has two jack legs: back-left and back-right. The jack legs are used to stabilize the wrecker on the ground. Figure 1 shows the jack legs. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 22 The mast has two boom sections. Figure 3 shows a boom and its components. FIGURE 3  - BOOM 1.1.4 Winch The wrecker is equipped with two winches. Figure 1 shows the location of the winches. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 23 In France, the electronic control panel is located on the passenger’s side, and the mechanical control panel is located on the driver’s side. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 24 NOTE: The position and number of controls may differ slightly between models. FIGURE 5  - CONTROL PANEL ON THE DRIVER’S SIDE (OPTIONAL ELECTRONIC LEVERS SHOWN) REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 25 Two oil pressure gauges. Pressure of the left hydraulic system. Pressure of the right hydraulic system. Lights All lights Side lights Rotating beacon light REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 26 High speed and low speed for the winches. Slider (to prepare the slider, see section 3.9.1 Preparing the slider) Lock or unlock the slider. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 27 Moves the boom toward the front of the wrecker (when the slider is unlocked). Moves the boom toward the back of the wrecker (when the slider is unlocked). Lowers the boom. Raises the boom. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 28 Winds the right winch cable. Underlift (to operate the underlift, see section 3.8 Using the underlift) Extends the underlift. Retracts the underlift. Unfolds the underlift stinger. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 29 16 function buttons. The function buttons provide most of the hydraulic functions that are available on the main control panel. The functions available vary, depending upon the client requirements. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 30 On: the transmitter button has been pressed and the remote control is transmitting information. Flashes slowly: batteries are low and a button has been pressed. Function As specified by the client. buttons REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 31 These introductory descriptions are not operating instructions; to know how to operate a component, see the procedures in this manual. FIGURE 7 — REMOTE CONTROL WITH PROPORTIONAL CONTROLS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 32 Moves the boom toward the front of the wrecker (when the slider is unlocked) Unwinds the drag winch cable (not available on the 20CS and 25CS models) If your wrecker has this option, you can select one of these settings on the...
  • Page 33 The electrical system includes a main electrical panel with breakers and relays that distributes the electricity to the valve banks, electronic control modules, sensors and lights. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 34: Technical Specifications

    3,556 mm [140"] 3,556 mm [140"] rearmost axle * Capacity @ 35° boom elevation ** Capacity @ 40° boom elevation *** Capacity @ 55° boom elevation REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 35 Front axle (minimum) 6 tons [12,000 lb] Rear axle (minimum) 10 tons [21,000 lb] Chassis resisting bending moment (RBM) 339 kN-m 367 kN-m (minimum) [3,000,000 lb-in] [3,250,000 lb-in] REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 36 TABLE 7 — CHASSIS DIMENSIONS (IN METRIC [IMPERIAL]) Dimension 20CS / 25CS CA (min) 3,556 mm [140”] 2,540 mm [100”] 4,762 mm [187”] 1,194 mm [47”] 710-1,830 mm [28-72”] REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 37 TABLE 8 — BOOM AND JACK LEGS DIMENSIONS – SIDE VIEW (IN METRIC [IMPERIAL]) Dimension 20CS 25CS 6.5 m [21’5"] 6.9 m [22’7"] 3.7 m [12’3"] 4.2 m [13’8"] 2.3 m [7’6"] 2.3 m [7’6"] 1.1 m [3’7"] 1.1 m [3’7"] REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 38 Working hydraulic pressure 211 bar [3,000 psi] 211 bar [3,000 psi] Slide cylinder stroke 1,692.3 mm [66 5/8"] 1,841.5 mm [72 1/2"] Boom lift cylinder Single Ø152 mm [6"] Single Ø178 mm [7"] REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 39 The rated line pulls shown are for the winch only. See the wire rope manufacturer for wire rope ratings. Winch performance in high speed yields line speeds 2x those charted below, and line pulls 1/2x those charted below. TABLE 10 — WINCH SPECIFICATIONS OF THE 20CS (IN METRIC [IMPERIAL]) Element Specification Winch capacity 89 kN [20,000 lb]...
  • Page 40 11,340 9,430 8,110 7,070 6,300 Low speed [25,000] [20,800] [17,900] [15,600] [13,900] Cable capacity Line speed (at 15 GPM) 11.1 11.8 14.0 Low speed REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 41 O p e r a t i o n a n d M a i n t e n a n c e 1.2.5 Underlift dimensions and capacity FIGURE 10 — UNDERLIFT DIMENSIONS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 42 Towing capacity 356 kN [80,000 lb] 356 kN [80,000 lb] Lifting capacity when extended 67 kN [15,000 lb] 71 kN [16,000 lb] Lifting capacity when retracted 156 kN [35,000 lb] 156 kN [35,000 lb] REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 43 Lifting capacities are presented in the following order: Figure 11 — Lifting Capacity of the 20CS Figure 12 — Lifting Capacity of the 25CS FIGURE 11 — LIFTING CAPACITY OF THE 20CS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS...
  • Page 44 O p e r a t i o n a n d M a i n t e n a n c e FIGURE 12 — LIFTING CAPACITY OF THE 25CS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 45: Safety

    Clean and replace them as needed. Intended use NRC Industries equipment is intended for use only by trained and qualified operators who have carefully read and understood the contents of this manual. This product was designed to recover and tow vehicles that do not exceed its lift or tow ratings.

  • Page 46: Nrc Responsibilities

    NRC distributor. Should a visual inspection identify any cracks or structural damage, immediately discontinue use until the equipment is deemed safe. NRC recommends that the hydraulic system of the wrecker be checked at least once a year, ONLY by an authorized NRC distributor.

  • Page 47: Operator Responsibilities

    The control levers should no longer be functional. The warning light in the cab should be off. Never tow a vehicle that has people inside. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 48 Do not allow anyone to enter this danger zone when you are using the equipment. In addition, do not allow anyone within 75 m (250’) of a winch cable. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 49: Conditions For Use

    50,000 volts. See the minimum approach distances in the table and add an additional 30 cm (1’) for every 30,000 volts or portion thereof. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 50 Use extra caution when operating the wrecker on icy surfaces. Use the outriggers and spades to prevent the wrecker from slipping. 2.7.4 Obstacle clearance distance Keep all loads a safe distance away from surrounding obstacles. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 51: Operation

    5. The more winch cable you unwind, the more pulling force you have to tow the vehicle. 6. You can use pulleys to increase the winch capacity. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 52 E. Load on the underlift. FIGURE 13  – AXLE LOAD CALCULATIONS If the rear axle group is composed of a single drive axle and a liftable pusher axle, this calculation does not apply. Contact your NRC representative for more details. REV. 0 Composite Slider Wreckers –...
  • Page 53 RLFA = A - F = 12,000 - 5,000 = 7,000 lbs. Source: Les Dépanneuses: équipement de base, utilisation, lois, normes et règlements , Sainte-Foy, Québec: Publication du Québec, 1996 (in French). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 54 8 turns for synthetic cable. Source: Les Dépanneuses: équipement de base, utilisation, lois, normes et règlements , Sainte-Foy, Québec: Publication du Québec, 1996 (in French). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 55 10% for poorly- maintained/lubricated blocks. FIGURE 14 — CALCULATING INCREASED WINCH CAPACITY You can calculate the total winch-pulley-anchor capacity using this formula: REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 56: Preparing The Wrecker For Optimal Performance

    3.8.5 Removing the underlift from the wrecker. Exercise caution when using the crane with the underlift, since any contact between the boom and underlift can damage the equipment. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 57: Safety Guidelines

    After familiarizing yourself with the equipment, we recommend running the engine at low speed (600–850 rpm). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 58: Emergency Hydraulic Bypass

    The PTO must be engaged in order to use the emergency hydraulic bypass. FIGURE 15 — EMERGENCY HYDRAULIC BYPASS CONTROL PANEL REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 59: Common Operating Procedures

    5. Press the clutch, engage the PTO and release the clutch to start the hydraulic system. The hydraulic system supplies power to the boom, underlift, winch, etc. The control panels automatically turn ON when you engage the PTO. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 60 Lock the boom in travelling position (see Section 3.9.3 Locking the boom in travelling position). Lock the winches in storage position (see Section 3.10.5 Locking the winches in travelling position). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 61: Using The Jack Legs

    If this is the case, move the vehicle to more level ground and try again. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 62 3. Using the levers on the driver’s side, fully retract both jack legs simultaneously. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 63: Using The Underlift

    Raise the boom to raise the whole underlift. This will raise the vehicle that you are towing. Lower the boom to lower the whole underlift. This will lower the vehicle that you are towing. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 64 FIGURE 16  — UNDERLIFT MOVEMENTS 3.8.2 Towing another vehicle If using the NRC Heavy duty tire lifts (bus brackets), use caution when installing them onto the T-bar to prevent injury. Position yourself correctly while lifting heavy objects. Always secure the disabled vehicle using wheel chocks before working around or under it.
  • Page 65 Alternatively, use the control panel levers. 7. Select the towing accessories or tools compatible with the chosen lifting point and position them on the T-bar. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 66 Connect the air supply and brake control. Test the brake. c. Remove and secure the drive shaft(s) of any drive axles on the ground as per the recommendations from the towed vehicle manufacturer. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 67 This will prevent damage to the winch cables. 2. Gently unwind the main winch cables and detach the hooks from the eyes near the top of the underlift. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 68 This will position the locking mechanisms for the next attachment. This is shown in the figure below. FIGURE 18 — RELEASING THE LOCKING MECHANISMS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 69 7. Gently unwind the main winch cables and attach the hooks to the eyes near the top of the underlift. The underlift is now hooked to the boom. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 70 REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 71 8. Engage the winches and start lifting the underlift. Continue lifting until you start to see the underlift rollers. Stop lifting the underlift before the rollers leave their rails. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 72 FIGURE 21  — POSITIONING THE UNDERLIFT IN THE RAILS (EXAMPLE) 10. Raise the boom until the underlift clears the rails. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 73 Remove the underlift from the tag axle, then remove the tag axle from the wrecker. This is useful if you need to reattach the underlift to the wrecker for jobs to be done with the underlift. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 74 Using the boom, lift the tag axle close to the end of the rails and ensure that it is still centred in the rails by slightly extending or retracting the boom. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 75 Using the boom, lift the tag axle close to the end of the rails and ensure that it is still centred in the rails by slightly extending or retracting the boom. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 76 9. Restart the engine or engage the PTO. 10. Hook the underlift to the boom (see Section 3.8.4 Attaching the underlift to the boom). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 77: Using The Boom

    1. Ensure that the slider is unlocked on the control panel. 2. Push the boom slider lever up or down to slide the boom forward or backward. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 78 1. Use the boom slider lever to slide the boom all the way forward. 2. Close the slider doors to cover the slider rails and lock the mast in place. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 79: Using The Winch

    This could damage the cables, winches and sheave heads, and cause injury or even death. IMPORTANT: This section provides general information on how to use the winches. NRC equipment uses winches of various brands and models. Always refer to the winch manufacturer manual for information specific to your winch.
  • Page 80 To use the winches again, reset the clutches to zero by flipping all two winch switches to the engaged position. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 81 2. Wind the winch cable in fully. Do not over-wind the cable and cause the hook to exert tension on the pulley. This could result in severe damage. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 82: Using The Remote Control That Has Proportional Controls

    2. Engage all the winches by flipping the two winch switches down. The red light on each switch will turn off, allowing you to disengage and engage the winches using the remote control. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 83 Toggle the speed switch to the low position to return to slow speed. You can perform all other functions using the remote control levers as you would with the control panel. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 84: Using The Remote Control That Has 6, 10 Or 16 Function Buttons

    1. Push and hold the green button of the remote control. 2. Start using the remote control. Note that each remote control is built and programmed according to your requirements. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 85: Maintenance

    When lifting the vehicle, use approved and certified equipment that is in good condition. When performing overhead work, use rated jack stands and proceed with caution. For winch safety guidelines, see the winch manufacturer manual. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 86: General Maintenance

    See Section 4.2.2 Mounting plates maintenance. Replace all the oil filters (pressure and return filters). Clean the inlet filters and test the hydraulic fluid. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 87 For a wrecker equipped with the proportional hydraulic option only, verify the condition of the high pressure oil filter. If the indicator is red, replace the high pressure filter. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 88 4.2.2 Mounting plates maintenance NRC recommends that wrecker mounting plates be inspected every month by trained and qualified personnel, and annually by an authorized NRC distributor. Should a visual inspection identify any cracks or structural damage, immediately discontinue use until the equipment is deemed safe.
  • Page 89 EIPS1960 IWRC Steel cable for the Ramsey 25CS Main 16 mm (5/8") 6X36 (WS) RPH 25000 winch EIPS1960 IWRC FIGURE 24  - WINCH LOCATIONS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 90 Table 14. Make sure to recycle or dispose of the worn wear pads in accordance with local legislation. Log in to the NRC service website to locate part numbers and order wear pads: http://services.nrc-industries.com/. TABLE 14  - WEAR PADS...
  • Page 91 O p e r a t i o n a n d M a i n t e n a n c e FIGURE 25  - WEAR PADS - UNDERLIFT REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 92 O p e r a t i o n a n d M a i n t e n a n c e FIGURE 26  - WEAR PADS - BOOM FIGURE 27  - WEAR PADS - SLIDERS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 93: Lubrication

    4.3.1 IMPORTANT: NRC wreckers use oil for the hydraulic system and winches. When changing the oil, take care not to spill any. Collect the oil in a leak-proof can or container and bring it to your nearest collection point for recycling.
  • Page 94 See Figure 24. cables by the cable manufacturer FIGURE 28  - OIL TANK - 20CS AND 25CS REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 95 4.3.2 Oil filter cartridges NRC wreckers include high-pressure filters and return filters. The cartridges for these filters must be replaced according to the schedule shown in the table below. The cartridge model and locations depend on the wrecker model. Contact your NRC distributor for the cartridge model number that applies to your wrecker model.
  • Page 96 Slider tube Teflon grease TABLE 18  - LUBRICATION POINTS – UNDERLIFT NOTE: The number of grease fittings may vary depending on your underlift model. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 97 Fold cylinder anchor point Grease fitting Fold cylinder anchor point (Note 2) Grease fitting Note 1: Fully extend the underlift to access all grease fittings. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 98 Lubrication point Type Jack leg cylinder and slide lock Grease fitting Jack leg cylinder and slide lock Grease fitting D-ring Grease fitting REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 99 TABLE 21 — LUBRICATION POINTS – WINCHES NOTE: See the manufacturer's manual for the appropriate grease type and frequency for your application and model. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 100 Boom extension cylinder anchor point (2 per section) (Note 1) Grease fitting D-rings Grease fitting Pulley bushing Grease fitting Main winch rotation Grease fitting Note 1: Extend the boom to access the fittings. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 101 Boom rotation axis Grease fitting Lift cylinder anchor point (bottom) Grease fitting Lift cylinder anchor point (top) Grease fitting Slider cylinder anchor point Grease fitting REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 102 O p e r a t i o n a n d M a i n t e n a n c e Lubrication point Type Lift cylinder anchor point (bottom) Grease fitting Slider top pad Grease fitting Slider bottom pad Grease fitting REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 103: Maintenance Procedures

    3,000 psi. FIGURE 30 — POSITION OF THE VALVE ADJUSTING SCREW UNDER THE WRECKER FLOOR REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 104 Do not turn the adjusting screw of the hydraulic valve while operating a hydraulic control, as this may permanently damage the valve. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 105 4. Tighten all locknuts. 4.4.2 Adjusting the pressure relief valve (CBCG-LJN) The wrecker has four pressure relief valves. They need different adjustments: REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 106 1. Loosen the jam nut. FIGURE 32 — ADJUSTING THE PRESSURE RELIEF VALVE (CBCG-LJN) 2. Turn the set screw counter clockwise until it stops. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 107 3. Try folding the underlift. If it can be folded easily, the cushioning valve is correctly adjusted. If not, continue to the next step. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 108 6. Try folding up the underlift. If it still lacks power, repeat Step 5 until the underlift folds correctly. Do not apply excessive pressure; use the minimum required to fold it correctly. 7. Tighten the locknut. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 109: Troubleshooting

    The following sections provide detailed procedures for some of the solutions. NOTE: Only distributors are authorized to perform repairs that involve replacing parts. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 110: Troubleshooting Common Problems

    Stop the wrecker, disengage the PTO, engage cannot be with the proportional all winches and start over. engaged hydraulic option only, a winch was disengaged before starting the wrecker REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 111 The cushioning valve is Adjust the cushioning valve (see Section 4.4.3 unfold not adjusted properly Adjusting the underlift cushioning valve). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 112 If oil comes out of the hose in the pail, something is wrong with the cylinder. Have it repaired. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 113 4.4.2 Adjusting the pressure relief valve (CBCG-LJN)). The boom cylinder is Check the boom cylinder and have it repaired faulty or rebuilt (see Section 5.2 Checking the boom cylinder). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 114 The boom cylinder is Check the boom cylinder and have it repaired faulty or rebuilt (see Section 5.2 Checking the boom cylinder). REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 115: Checking The Boom Cylinder

    4. Fully retract the boom and keep it retracted using a winch cable hooked to the D-ring on the wrecker. 5. Stop the hydraulic system. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 116 10. Disengage the winch that is keeping the boom retracted. If the boom does not stay retracted, the cylinder has to be rebuilt or replaced. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 117: Checking The Pto

    This is only a temporary solution. The cause of the problem must be found immediately. Turn off the toggle switch as soon as possible. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 118 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 119: Accident Or Breakdown Procedure

    2. Engage the PTO to operate the hydraulic pump and check the console to see whether the PTO engages normally. If the PTO does not engage, have it repaired. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 120: Pump Failure

    In the event of an underlift stinger failure in which the stinger can no longer be extended or retracted, the most probable cause is a bent cylinder. Remove the underlift and have it repaired. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 121: Storage

    2. Replace the high-pressure and return filters on the hydraulic reservoir. 3. Check the oil level and pressure. 4. Connect the electrical power supply. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 122 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 123: Disassembly And Disposal

    Rubber hydraulic hoses; Painted parts; Metal; Composite materials. To protect both you and the environment, we recommend having a specialized company disassemble your machine. REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 124 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 125: Authorized Distributors And Service Providers

    AUTHORIZED DISTRIBUTORS AND SERVICE PROVIDERS Please visit our website for the list of authorized distributors and service providers, or scan the QR code below. https://nrc-industries.com/nrc-dealer/ REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 126 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 127: Logbook

    Logbook Date Routine Maintenance/Frequenc Other Tasks Name Number of Observations y (Flushing, Greasing, (Inspections, Hours of (Part Tightening…) Disassembly, Title Operation Numbers…) Repairs…) REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 128 O p e r a t i o n a n d M a i n t e n a n c e REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...

  • Page 129: Operator Record

    O p e r a t i o n a n d M a i n t e n a n c e OPERATOR RECORD Operator Name Date REV. 0 Composite Slider Wreckers – Operation and Maintenance Models: 20CS - 25CS APRIL 24, 2023...
  • Page 130 NRC-INDUSTRIES.COM 2430 Principale, St-Paul-d'Abbotsford, QC, J0E 1A0 T.450 379.5796 F.450 379.5796...

This manual is also suitable for:

25cs20cs-00125cs-001

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