1. Manuals
  2. Brands
  3. Airglas Manuals
  4. Toy
  5. LH4000 Main Ski
  6. Maintenance and service instructions

Airglas LH4000 Maintenance And Service Instructions

Hide thumbs Also See for LH4000:
Table of Contents

Advertisement

Quick Links

Download this manual See also: Instruction and Installation Manual
Airglas, Inc.
®
Instructions for Continued Airworthiness
Including
Maintenance and Service Instructions
MANUAL NO. LH4000-106
MODEL LH4000 Ski Kit
For
Cessna 180 and 185 Aircraft
Cage Code 17564
MANUAL REVISION B
December 3, 2012
Airglas, Inc.
THIS MANUAL INCLUDES INFORMATION PROPRIETARY TO
AND SHALL NOT BE USED TO MANUFACTURE OR REPRODUCE ANY PART OR
Airglas, Inc.
ASSEMBLY WITHOUT THE PRIOR WRITTEN PERMISSION OF

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the LH4000 and is the answer not in the manual?

Questions and answers

Related Manuals for Airglas LH4000

Summary of Contents for Airglas LH4000

  • Page 1 Airglas, Inc. ® Instructions for Continued Airworthiness Including Maintenance and Service Instructions MANUAL NO. LH4000-106 MODEL LH4000 Ski Kit Cessna 180 and 185 Aircraft Cage Code 17564 MANUAL REVISION B December 3, 2012 Airglas, Inc. THIS MANUAL INCLUDES INFORMATION PROPRIETARY TO AND SHALL NOT BE USED TO MANUFACTURE OR REPRODUCE ANY PART OR Airglas, Inc.
  • Page 2 Airglas, Inc. Manual # LH4000-106 This Page Intentionally Left Blank P a g e MANUAL REVISION B December 3, 2012 Airglas, Inc. THIS MANUAL INCLUDES INFORMATION PROPRIETARY TO AND SHALL NOT BE USED TO MANUFACTURE OR REPRODUCE ANY PART OR Airglas, Inc.
  • Page 3 Airglas, Inc. Manual # LH4000-106 Record of Revision REV DATE Affected EXPLANATION OF REVISION LEVEL Pages Initial 25 Jan 2005 Original Document Release August 21, Clifford D. Belleau Added alternate hydraulic cylinder. Revised rigging 2012 instructions. December 3, 7, 9, 11 Clifford D.
  • Page 4 43.16 and 91.403 of the Federal Aviation Regulations unless an alternative program has been FAA approved." Limitations:  Currently there are no components of the LH4000 Wheel Ski Kit that have a time limited mandatory service interval. P a g e...

  • Page 5: Table Of Contents

    Airglas, Inc. Manual # LH4000-106 Table of Contents Page Introduction and Description 6-15 Placards and Markings Removal Re-installation 17-18 Control and Operation 18-19 Servicing Information 19-20 Instructions for Continued Airworthiness 20-21 Specifications 9.0 Trouble Shooting 10.0 Drawings and Diagrams P a g e...

  • Page 6: Introduction And Description

    The installation of the LH4000 hydraulic wheel ski kit allows the aircraft to operate on paved or hard surfaces, and snow. The skis are actuated by a hydraulic cylinder on each ski with an electric/hydraulic or hand pump to provide operating pressure.
  • Page 7 Airglas, Inc. Manual # LH4000-106 1.1 SKI RIGGING BRACKETS AND ATTACH FITTINGS- CONTINUED Rigging Bracket Installations Figure 1 P a g e MANUAL REVISION B December 3, 2012 Airglas, Inc. THIS MANUAL INCLUDES INFORMATION PROPRIETARY TO AND SHALL NOT BE USED TO MANUFACTURE OR REPRODUCE ANY PART OR Airglas, Inc.
  • Page 8 Airglas, Inc. Manual # LH4000-106 Left Forward Rigging Bracket Installation (LW3600-180A-10 Opposite) (See Drawing LW3600-180A-9 & LH3600-17 INST. for 180 thru 180F) Figure 2 1.1 SKI RIGGING BRACKETS AND ATTACH FITTINGS-CONTINUED LW3600-180A-9 Forward Rigging Bracket Installed (LW3600-180A-10 is opposite) Photo 1...
  • Page 9 Airglas, Inc. Manual # LH4000-106 1.1 SKI RIGGING BRACKETS AND ATTACH FITTINGS-CONTINUED DRILL (5) EXISTING RIVETS, REAM (4) WITH #10 DRILL BIT. ALIGN LH3600-17 FOR BEST MS21044N3 NUT EDGE DISTANCE. BACK DRILL NAS1149F0363P WASHER LH3600-17. AN3-5A BOLT LH3600-17-1 DOUBLER INSTALL DOUBLER UNDER FORWARD BOLTS, TRIM AS REQUIRED.
  • Page 10 Airglas, Inc. Manual # LH4000-106 Rear Rigging Bracket Installation LH3600-17 (LH3600-18 Opposite) Photo 2 1.1 SKI RIGGING BRACKETS AND ATTACH FITTINGS-CONTINUED Rear Rigging Bracket Doubler Installation LH3600-17-1 (LH3600-18-1 Opposite) Photo 3 10 | P a g e MANUAL REVISION B December 3, 2012 Airglas, Inc.
  • Page 11 Airglas, Inc. Manual # LH4000-106 Front Safety Cable Bracket Installation Figure 4 1.1 OUTBOARD AND INBOARD STUB INSTALLATION Stub Axle Breakdown 11 | P a g e MANUAL REVISION B December 3, 2012 Airglas, Inc. THIS MANUAL INCLUDES INFORMATION PROPRIETARY TO AND SHALL NOT BE USED TO MANUFACTURE OR REPRODUCE ANY PART OR Airglas, Inc.
  • Page 12 Airglas, Inc. Manual # LH4000-106 Figure 5 Inboard Stub Axle Installation-Figure 6 Note: It is suggested that the aircraft wheel alignment is confirmed using Cessna service instructions prior to installation of the skis. 1.2 HYDRAULIC INSTALLATION-FUSELAGE 12 | P a g e...
  • Page 13 Airglas, Inc. Manual # LH4000-106 Electric Pump Mounting -Photo 5 Optional Hand Pump Mounting - Photo 6 1.2 HYDRAULIC INSTALLATION-FUSELAGE-CONTINUED 13 | P a g e MANUAL REVISION B December 3, 2012 Airglas, Inc. THIS MANUAL INCLUDES INFORMATION PROPRIETARY TO AND SHALL NOT BE USED TO MANUFACTURE OR REPRODUCE ANY PART OR Airglas, Inc.
  • Page 14 Airglas, Inc. Manual # LH4000-106 Hydraulic Schematic – Figure 7 NOTE: The optional hand pump installation location may vary from aircraft to aircraft. 1.2 HYDRAULIC INSTALLATION-EXTERNAL 14 | P a g e MANUAL REVISION B December 3, 2012 Airglas, Inc.
  • Page 15 Airglas, Inc. Manual # LH4000-106 Additional Clamp Installation-Photo 7 1.3 ELECTRICAL INSTALLATION Ski Pump Switch Installation-Photo 8 15 | P a g e MANUAL REVISION B December 3, 2012 Airglas, Inc. THIS MANUAL INCLUDES INFORMATION PROPRIETARY TO AND SHALL NOT BE USED TO MANUFACTURE OR REPRODUCE ANY PART OR Airglas, Inc.

  • Page 16: Placards And Markings

    Airglas, Inc. Manual # LH4000-106 1.3 ELECTRICAL INSTALLATION-CONTINUED Ski Pump Electrical Schematic-Figure 8 Note: Wiring instructions for the Parker-Electro/Hydraulic pump. Make sure that the polarity for the pump is correct. BLUE 12 V or Black 24V (SKIS) GREEN 12V or Orange 24 V (WHEELS) a.

  • Page 17: Removal

    APPLYING POWER FOR BALKED LANDING GO-AROUND Place placard on instrument panel in full view of pilot. DO NOT LAND ON SNOW WITH TIRES DOWN WHEN AIRGLAS LH4000 SKIS ARE INSTALLED Place placard on instrument panel in full view of pilot.

  • Page 18: Re-Installation

    Airglas, Inc. Manual # LH4000-106 1. Retract the skis (tires down) 2. Pull the ski pump circuit breaker and remove the ski indicator light circuit inline fuse. Secure the pump circuit breaker with a ty-wrap to prevent accidental activation. Placard the ski pump breaker and the ski selector switch “Disabled”.

  • Page 19: Control And Operation

    19. Record installation of the skis in the aircraft maintenance records. CONTROL AND OPERATION Control and Operation Information: The door for the LH4000 Ski Kit is actuated by the electric/hydraulic pump (preferred) or a manually operated hand pump in the cockpit. The electric/hydraulic pump is controlled via a 3 position toggle switch and indicator lights that are located on the instrument panel.

  • Page 20: Servicing Information

    Hydraulic System – The hydraulic system supplied with the skis uses an Electric/Hydraulic Pump, (a hand pump is optional but not offered through Airglas, Inc.) to pump fluid to a hydraulic actuating cylinder mounted on the ski. The Electric/Hydraulic Pump is intended to be mounted behind the cabin area aft of station 108.

  • Page 21: Instructions For Continued Airworthiness

    3. CHECK – Hydraulic pump fluid level and inspect for leaks, and wiring connections. 4. CHECK – LH4000 ski kit for cracks, excessive wear, fractures, abrasions, and delamination. 5. CHECK – Door Guides for wear and security. Lube with silicone spray or wax.
  • Page 22 Airglas, Inc. Manual # LH4000-106 INSPECTION CRITERIA 100/ANNUAL-CONTINUED LH3600-13) check cable assembly, and the LH3600-10 yoke restraining cable for integrity, wear, abrasion and fraying. Inspect all associated hardware for security. Replace bungees when frayed or tension is less than 70 pounds in most slack position.

  • Page 23: Specifications

    Airglas, Inc. Manual # LH4000-106 SKI SPECIFICATIONS Ski Specifications are as follows: Length= 84” Width= 24” Height= 5” TO TOP OF TUNNEL (7” at axle centerline) Weight= 73 lbs. (each ski) Square Inches= 1435 (each ski) Center of Gravity= 12.5” FWD OF AXLE...

  • Page 24: Trouble Shooting

    Airglas, Inc. Manual # LH4000-106 9.0 TROUBLE SHOOTING Problem: Indicator lights illuminate inaccurately or erratically. Correction: Reconnect the hydraulic supply lines to opposite ports on the pump and/or reverse the pump power polarity. Problem: Skis do not cycle smoothly, or have pulsing or incomplete actuation.

  • Page 25: Drawings And Diagrams

    Airglas, Inc. Manual # LH4000-106 10.0 DRAWINGS AND DIAGRAMS Descriptive Data List No. LH3600-1 Installation Manual LH4000-105 Rev C December 3, 2012 Instructions for Continued LH4000-106 Rev. B December 3, 2012 Airworthiness Ski Installation and Assembly LH3600A-1 Original 9 Dec 2011...

Table of Contents