Quantcast Table 4-2. Unit Troubleshooting-continued -706880191

 

Click here to make tpub.com your Home Page

Page Title: Table 4-2. Unit Troubleshooting-continued
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home


   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 

Share on Google+Share on FacebookShare on LinkedInShare on TwitterShare on DiggShare on Stumble Upon
Back
Table 4-2. Unit Troubleshooting-continued -706880190
Up
TM-5-4210-233-14-P-1 Firfighting Truck 100 Ft. Aerial Ladder 1000 GPM Manual
Next
Table 4-2. Unit Troubleshooting-continued -706880192
TM 5-4210-233-14&P-1
Table 4-2 Unit Troubleshooting - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
HYDRAULIC SYSTEM - Continued
7
LADDER LOWERS AND RETRACTS SLOWLY
NOTE
Extremely cold hydraulic oil will affect operation of the ladder.
Operate unit to bring oil to operating temperature.
Check for restriction in hydraulic tank return hose or filter.
Replace hydraulic filter (see para 4-189).
Replace return hose (see para 4-9).
8
LADDER WILL NOT LOWER OR RETRACT
Step 1. Check position of manual override.
Ensure manual override handle is in neutral position and moves freely.
Step 2. Check that aerial system is engaged.
Ensure DIVERTER VALVE AERIAL/OUTRIGGER switch is in AERIAL position.
Step 3. Check for possible aerial interlock malfunction.
Refer to electrical troubleshooting procedures to test system.
Step 4. Check hydraulic oil level in tank.
Refill to proper level (Chapter 3, Lubrication Instructions).
8
LADDER WILL NOT LOWER
Step 1. Check that locking solenoids are released.
Refer to electrical troubleshooting procedures to test solenoid valves.
Step 2. Check operation of LOWER/RAISE ladder control valve.
Refer to Direct Support maintenance for repair or replacement.
Step 3. Check if excessive fluid flow has forced a hydraulic fuse in one or both hoist cylinders to
engage.
With the system pressurized, raise the ladder slightly then lower it.
4-62

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc.
6230 Stone Rd, Unit Q Port Richey, FL 34668

Phone For Parts Inquiries: (727) 493-0744
Google +