Elkhart Brass Stinger 2.0 8297 - Manual (Page 14)

14
V. M AINTENANCE
A. Preventive Maintenance Procedures for Upper Assembly
1. After Each Use:
Check for proper latch pin operation. To do this turn the upper unit upside down and push
each latch pin up into its respective hole. It should move smoothly, easily, and far enough
into its hole that no part of the pin is exposed in the large bore. Using the twist release
mechanism, make sure that the latch pins retract fully into their holes and are not exposed in
the large bore when the grip is twisted to its limit. Release the twist grip and check to be
sure the latch pins both return to the fully latched position by checking the visual indication
windows in the latch pin caps (See Fig. 13, Pg.11). With the twist release stop pin pulled,
twist and release the grip several times. The grip should turn smoothly when released. Pull
and release the twist release stop pin to make sure it is working freely. Pull the twist release
stop pin and rotate the twist handle to the fully released position. Release the stop pin and
then release the twist handle. The mechanism should quickly and smoothly return to the
fully latched position and the twist release stop pin should reset to the locked position.
The twist handle has nylon bushings, the cable guides are plastic lined, and the latch pin
caps and holes are Hardcoated and Teflon impregnated to provide years of smooth operation
without lubrication. Lubrication will attract dirt and possibly cause the latch pin mechanism
to hang up, creating a severe safety hazard.
2. It is very important to check that the left/right lock is working property. The lock plug is a wear
item and will need to be replaced periodically (For replacement See Step 4)
Warning:
If any part of the latch pin mechanism hangs up or does not seem to work correctly, DO NOT use the
monitor. DO NOT lubricate any part of the latch pin mechanism. Contact Elkhart Brass for further
instructions.
3. As Needed:
Check that the interior of the monitor inlet is clean. Flush out any dirt with clean water. To
assure ease of horizontal rotation, periodically apply a light coating of general purpose
petroleum grease to the U-Cup seal (P/N 62153000) within the monitor inlet. Do not
remove the seal for lubrication.
Grease the worm gear as needed or at least every 6 months with general-purpose petroleum
grease. Rotate the handwheel to raise the discharge to its highest elevation, apply grease to
the fitting located on the lower front of the unit. Fill it until grease appears at the discharge
elbow joint. Lower the discharge to the safety stop limit and repeat the grease procedure.
Pull the safety stop pin, lower the discharge to its lowest position, and repeat the grease
procedure again. Raise the discharge until the safety stop is reset. Wipe off the excess
grease. Clean the monitor
4. To replace the left-right lock plug remove the retaining ring from the pivot pin on the torsion
spring end. Remove the pivot pin from the opposite side while holding the lock lever and torsion
spring with your free hand. Remove the old lock plug and insert a new one. Clean the knurling on
all bases. Reverse the steps to reassemble the lock.
5. Replace the labels if they become illegible, lost, painted over, or removed.