GP7124A REPAIR INSTRUCTIONS

NOTE: Always take time to lubricate all metal and non-metal parts with a light film of oil before reassembling. This step will help ensure proper fit, at the same time protecting thepumpnon-metalparts (elastomers)fromcutting and scoring.

TO CHECKVALVES

Lossen screws (58C), take plugs (58) out of valve casing with two screws.Take out complete valve (51) using either tool (part #07662) or stud bolt.Valve seats (51C and 52C) are pressed out of spacer pipe (51F) by hitting the valve plate (51D) with a bolt. Check surfaces of valve plate, valve seat, O-rings (51B, 58A) and replace worn parts.

CAUTION: When reassembling: The suction valve seat (51C) is 1mm smaller in diameter than the discharge valve seat (52C). Suction valve seats are marked "S" and always have to be installed first. Discharge valve seats are marked "P" and are always tobe installed on top of suction valve. Plugs (58) are to be tensioned down evenly with screws (58C) and crosswise at 210NM.

TO CHECK SEALSAND PLUNGER PIPE

Loosen nuts (49A) and remove pump head. Separate plunger (36) from crosshead (25) by means of two open-end wrenches (size 22 and 27). Pull seal sleeves (38) out of their fittings in the crankcase.Take seal case (39) out of seal sleeve (38).Take seal-pack (40-43) out of seal sleeve.After removing the circlip ring

(44)take seal-pack (43A-C) out of seal sleeve (38). Examine plunger (36) and seals (40,42,43B).

When replacing plunger (36), tighten new plunger to 26 ft.lbs.

Replace worn parts; grease seals with Silicone before installing.

CAUTION: Don't loosen the 3 plunger (36) before the valve casing has been removed otherwise the plunger (36) could hit against the spacer pipe (51F) when the pump is being turned.

Seal life can be increased if the pretensioning allows for a little leakage. This assists lubrica- tion and keeps the seals cool. It is therefore not necessary to replace seals before the leak- age becomes too heavy and causes output and operating pressure to drop.

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Giant installation instructions GP7124A Repair Instructions, To Checkvalves, To Check Sealsand Plunger Pipe

GP7124A specifications

The Giant GP7124A is a state-of-the-art electric bike designed for both urban commuting and recreational riding. One of the standout features of the GP7124A is its powerful motor, which offers impressive torque and acceleration. This electric bike is equipped with a 750W peak power motor that provides a smooth and responsive riding experience, making it suitable for various terrains, from city streets to hilly paths.

The GP7124A comes with a high-capacity lithium-ion battery that boasts a capacity of 48V and 14Ah, allowing for a range of up to 50 miles on a single charge, depending on the riding mode selected. This long-range capability makes the bike ideal for daily commuting, reducing the need for frequent recharges. The battery is integrated into the bike's frame, providing a sleek and streamlined appearance while also ensuring better weight distribution.

Another notable characteristic of the Giant GP7124A is its robust aluminum alloy frame, which combines lightweight construction with strength and durability. This frame design not only enhances the bike's performance but also contributes to its stylish look. Additionally, the bike is equipped with front suspension to absorb shocks from bumps in the road, ensuring a comfortable ride even on uneven surfaces.

The GP7124A features a user-friendly display panel that provides essential information such as speed, distance traveled, battery level, and assist level. Riders can easily toggle between different power assist modes, allowing them to customize their riding experience according to their preferences or riding conditions. The bike also comes with hydraulic disc brakes for superior stopping power, enhancing safety and control, especially when riding downhill or in wet conditions.

The Giant GP7124A incorporates advanced technologies such as regenerative braking, which converts kinetic energy back into stored energy in the battery during braking, extending the bike's range. Additionally, the bike is designed for easy maintenance, featuring an adjustable seat post and a quick-release front wheel, making it convenient for storage and transport.

In summary, the Giant GP7124A is an exceptional electric bike that blends style, technology, and performance into a versatile package. With its powerful motor, long-range battery, comfortable frame, and advanced features, it stands out as a top choice for those seeking both efficiency and enjoyment in their rides. Whether commuting or exploring, the GP7124A promises a reliable and exhilarating experience on two wheels.