M-91-18 REV. C JUNE 2008 MAINTENANCE MANUAL RCM-1250 C RCM-1250 C AB RCM-1600 RCM-1600 C AB LIFT CORP. © MAXON Lift Corp.
11921 Slauson Ave. Santa Fe Springs, CA. 90670 LIFT CORP. CUSTOMER SERVICE: TELEPHONE (562) 464-0099 TOLL FREE (800) 227-4116 FAX: (888) 771-7713 NOTE: For latest version of all Manuals (and replacements), download the Manuals from Maxon’s website at www.maxonlift.com.
TABLE OF CONTENTS WARNINGS ........................................................................................................................... 6 SAFETY INSTRUCTIONS .................................................................................................... 6 PERIODIC MAINTENANCE.................................................................................................. 8 PERIODIC MAINTENANCE CHECKLIST .............................................................................
11921 Slauson Ave. Santa Fe Springs, CA.
Comply with the following WARNINGS and SAFETY INSTRUCTIONS while maintaining Liftgates. See Operation Manual for operating safety requirements. WARNINGS ! WARNING • Do not stand, or allow obstructions, under the platform when lowering the Liftgate. Be sure your feet are clear of the Liftgate. • Keep fingers, hands, arms, legs, and feet clear of moving Liftgate parts (and platform edges) when operating the Liftgate. • Correctly stow platform when not in use.
• A correctly installed Liftgate operates smoothly and reasonably quiet. The only noticeable noise during operation comes from the power unit while the platform is raised. Listen for scraping, grating and binding noises and correct the problem before continuing to operate Liftgate. • Use only Maxon Authorized Parts for replacement parts. Provide Liftgate model and serial number information with your parts order. Order replacement parts from: MAXON LIFT CORP. Customer Service 11921 Slauson Ave.
PERIODIC MAINTENANCE PERIODIC MAINTENANCE CHECKLIST ! WARNING Never operate the Liftgate if parts are loose or missing. Annually or 5000 Cycles (whichever occurs first) 11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713 Visually check the entire Liftgate for excessively worn parts and broken welds, especially the Hinge Pins. See PARTS BREAKDOWN section for replacement parts. With the Cylinder Housing Cover removed, lubricate drive chains with red grease.
CAUTION Keep dirt, water and other contaminants from entering the hydraulic system. Before opening the hydraulic fluid reservoir filler cap, drain plug and hydraulic lines, clean up contaminants that can get in the openings. Also, protect the openings from accidental contamination. NOTE: Use correct grade of hydraulic fluid for your location. +50 to +120 Degrees F - Grade ISO 32 Below + 70 Degrees F - Grade ISO 15 or MIL-H-5606 See TABLES 10-1 and 10-2 for recommended brands.
PERIODIC MAINTENANCE CHECKING HYDRAULIC FLUID - Continued ISO 32 HYDRAULIC OIL RECOMMENDED BRANDS PART NUMBER 11921 Slauson Ave. Santa Fe Springs, CA.
CAUTION Keep dirt, water and other contaminants from entering the hydraulic system. Before opening the hydraulic fluid reservoir filler cap, drain plug and hydraulic lines, clean up contaminants that can get in the openings. Also, protect the openings from accidental contamination. NOTE: Use correct grade of hydraulic fluid for your location. +50 to +120 Degrees F - Grade ISO 32 Below + 70 Degrees F - Grade ISO 15 or MIL-H-5606 See TABLES 10-1 and 10-2 for recommended brands. FLOW CONTROL VALVE 1.
PERIODIC MAINTENANCE CHECKING HYDRAULIC FLUID - Continued 4. Remove threaded Filler Cap (FIG. 12-1). Fill the Reservoir with correct Hydraulic Fluid to the level shown in FIG. 12-1. FILLER CAP RESERVOIR 1” 11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713 5. Reinstall Filler Cap (FIG. 12-1). CHECKING FLUID LEVEL FIG. 12-1 CAUTION Pump Cover must be correctly secured to prevent it from becoming a hazard.
CAUTION Do not apply heavy grease to the Lift Column CLEAN & LUBRICATE 1. Thoroughly pressure wash (or steam clean) inside surfaces of both Lift columns (FIG. 13-1) to remove oil, grease, and debris. CAUTION Do not store can of lubricant on truck 2. Lubricate inside each of the two Lift columns (FIG. 13-1) with light machine oil, white grease, silicon spray, or teflon spray. FIG. 13-1 3. Repeat washing procedure if there is any build up of solid lubricant. Re-apply recommended lubricants as required.
PERIODIC MAINTENANCE ADJUST DRIVE CHAINS NOTE: Vehicle body must be empty (unloaded) before performing the following adjustment. 1. Adjust drive chains as follows. ADJUSTING RODS ADJUSTING NUTS CYLINDER LOCK NUTS 11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713 2. Remove cover from Cylinder Housing. Loosen the lock nut on each chain adjusting rod (FIG. 14-1). Then lower Platform to ground level. ADJUSTING DRIVE CHAIN FIG. 14-1 3. Turn each chain adjusting nut (FIG.
11921 Slauson Ave. Santa Fe Springs, CA.
PARTS BREAKDOWN RCM-1250C 11921 Slauson Ave. Santa Fe Springs, CA.
252983-01 SPRING 17 252983-03 2 252460 1 252999 2 NOT USED NOT USED 2 11921 Slauson Ave. Santa Fe Springs, CA.
RCM-1250C - Continued 11921 Slauson Ave. Santa Fe Springs, CA.
BRACKET, STOP, LH 252461 1 38 LOCKING BRACKET 252467 1 39 BRACKET, STOP, RH 252466 1 40 HANDLE 252473 1 41 BRACKET, SWITCH 251711 1 42 CHANNEL 251028 1 43 PLATFORM STOP 252464 2 44 BRACKET 250265 2 45 RETAINER 250266 1 19 11921 Slauson Ave. Santa Fe Springs, CA.
RCM-1250C AB 11921 Slauson Ave. Santa Fe Springs, CA.
252983-01 252983-03 SPRING 252460 252999 21 1 2 NOT USED NOT USED 2 11921 Slauson Ave. Santa Fe Springs, CA.
RCM-1250C AB - Continued 11921 Slauson Ave. Santa Fe Springs, CA.
BRACKET, STOP, LH 252461 1 43 LOCKING BRACKET 252467 1 44 BRACKET, STOP, RH 252466 1 45 HANDLE 252473 1 46 BRACKET, SWITCH 251711 1 47 CHANNEL 251028 1 48 PLATFORM STOP 252464 2 49 BRACKET 250265 2 50 RETAINER 250266 1 23 11921 Slauson Ave. Santa Fe Springs, CA.
RCM-1600C 11921 Slauson Ave. Santa Fe Springs, CA.
2984-01 252984-03 SPRING 25 252460 1 252999 2 NOT USED NOT USED 2 11921 Slauson Ave. Santa Fe Springs, CA.
RCM-1600C - Continued 11921 Slauson Ave. Santa Fe Springs, CA.
BRACKET, STOP, LH 252461 1 38 LOCKING BRACKET 252467 1 39 BRACKET, STOP, RH 252466 1 40 HANDLE 252473 1 41 BRACKET, SWITCH 251711 1 42 CHANNEL 251028 1 43 PLATFORM STOP 252464 2 44 BRACKET 250265 2 45 RETAINER 250266 1 27 11921 Slauson Ave. Santa Fe Springs, CA.
RCM-1600C AB 11921 Slauson Ave. Santa Fe Springs, CA.
252984-01 252984-03 SPRING 29 252460 1 252999 2 NOT USED NOT USED 2 11921 Slauson Ave. Santa Fe Springs, CA.
RCM-1600C AB - Continued 11921 Slauson Ave. Santa Fe Springs, CA.
BRACKET, STOP, LH 252461 1 43 LOCKING BRACKET 252467 1 44 BRACKET, STOP, RH 252466 1 45 HANDLE 252473 1 46 BRACKET, SWITCH 251711 1 47 CHANNEL 251028 1 48 PLATFORM STOP 252464 2 49 BRACKET 250265 2 50 RETAINER 250266 1 31 11921 Slauson Ave. Santa Fe Springs, CA.
PUMP ASSEMBLY (GRAVITY DOWN) 5 (KIT) SOCKET HEAD CAPSCREW RETAINER 11921 Slauson Ave. Santa Fe Springs, CA.
QTY. REF 1 250100 PUMP 1 1 229272 MOTOR, 12 VOLTS DC 2 1 253353 VALVE, SOLENOID 2-WAY 1 226594 O-RING KIT, 2-WAY VALVE (NOT SHOWN) 3 1 REF THERMAL SWITCH 4 1 260261 OIL SEAL 5 1 251885 CHECK VALVE KIT 6 1 260229 RELIEF VALVE KIT 7 1 229193 FILLER/BREATHER CAP 8 1 251882 RESERVOIR, 3 QT.
HYDRAULIC COMPONENTS 6 3 4 2 1 5 7 8 9 10 PUMP (REF) 11921 Slauson Ave. Santa Fe Springs, CA.
QTY. PART NO. DESCRIPTION 1 1 202141 ELBOW BRASS, 1/4” X 1/8” 2 1 224370-11 PLASTIC HOSE, 87” LG. 3 1 251739 VALVE, FLOW CONTROL 2 GPM 4 1 228151 STRAIGHT SWIVEL 3/8-18 F-M 5 1 226948-18 HOSE, 3/8” X 47-1/2” LG 6 1 252002 CYLINDER, 2” DIA. X 28” STROKE 7 1 228950 ELBOW, 3/8F-3/8F 8 1 030304 NIPPLE PIPE, 3/8” X 2-1/2” 9 1 202406 ELBOW BRASS, 1/4” X 1/4” 10 1 800183 BUSHING, 3/8” X 1/4” 11 1 906714-01 ADAPTER. 3/8”F 35 11921 Slauson Ave. Santa Fe Springs, CA.
PUMP BOX ASSEMBLY 11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713 3 (CATCH) 1 REFER TO PUMP ASSEMBLY 3 (LATCH) 2 ITEM QTY. PART NO. DESCRIPTION REF 1 251741 PUMP BOX ASSEMBLY 1 1 260108 PUMP BOX COVER 2 1 260109 PUMP BOX 3 1 215139 CATCH AND FASTENER (WITH LATCH) 4 2 207645 POP RIVETS, 3/16” X 5/8” LG.
SWITCH MOUNTING BRACKET (REF) 1 1A 2 (2 PLACES) UP & DOWN DECAL (REF) CHANNEL (REF) ITEM QTY. PART NO. 1 1 250916 ELECTRICAL HARNESS & SWITCH ASSEMBLY 1 905206 SWITCH SEAL BOOT 2 030458 SCREW, TAPPING, #10 X 1/2” LG. 1A 2 DESCRIPTION 37 11921 Slauson Ave. Santa Fe Springs, CA.
DECALS CONTROL SWITCH DECAL P/N 250993 11921 Slauson Ave. Santa Fe Springs, CA.
If the drive chains or related parts are removed, route the chains as shown in FIG. 39-1. Refer to the PARTS BREAKDOWN section for the correct parts. The illustration also shows the motion of the hydraulic cylinder, sheaves (pulleys), and drive chains while the Platform is being raised. DRIVE CHAINS SHEAVE CYLINDER DRIVE CHAIN ROUTING & MOTION FOR RAISING PLATFORM FIG. 39-1 39 11921 Slauson Ave. Santa Fe Springs, CA.
HYDRAULIC SYSTEM DIAGRAM HYDRAULIC CYLINDER 11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713 2 GPM FLOW CONTROL VALVE AUX.
CONTROL SWITCH WHITE GREEN BLACK CABLE ASSY STARTER SOLENOID SOLENOID, VALVE “A” BLACK MOTOR CABLE WITH 200 AMP FUSE 41 BATTERY 11921 Slauson Ave. Santa Fe Springs, CA.
TROUBLESHOOTING PLATFORM WILL NOT RAISE, MOTOR WILL NOT RUN 1. 2. 11921 Slauson Ave. Santa Fe Springs, CA. 90670 (800) 227-4116 FAX (888) 771-7713 3.
11921 Slauson Ave. Santa Fe Springs, CA.
TROUBLESHOOTING PLATFORM RAISES, BUT LEAKS DOWN 11921 Slauson Ave. Santa Fe Springs, CA.
